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    Wyświetlanie 1-17 z 17
    Tytuł:
    Hall effects on MHD flow past an accelerated plate with heat transfer
    Autorzy:
    Sundarnath, J. K.
    Muthucumarswamy, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/264878.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    Hall parameter
    Hartmann number
    heat transfer
    Prandtl number
    Opis:
    Hall current and rotation on an MHD flow past an accelerated horizontal plate relative to a rotating fluid, In the presence of heat transfer has been analyzed. The effects of the Hall parameter, Hartmann number, rotation parameter (non-dimensional angular velocity), Grashof’s number and Prandtl number on axial and transverse velocity profiles are presented graphically. It is found that with the increase in the Hartmann number, the axial and transverse velocity components increase in a direction opposite to that of obtained by increasing the Hall parameter and rotation parameter. Also, when […], it is observed that the transverse velocity component vanishes and axial velocity attains a maximum value.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2015, 20, 1; 171-181
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effects of inclination angle and Prandtl number on the mixed convection in the inclined lid driven cavity using lattice Boltzmann method
    Analiza za pomocą siatki Boltzmanna wpływu kąta pochylenia oraz liczby Prandtla na mieszaną konwekcję w ukośnej szczelinie domkniętej ruchomą pokrywą
    Autorzy:
    Karimipour, A.
    Nezhad, A. H.
    D’Orazio, A.
    Shirani, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/280863.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    LBM
    inclination angle
    Prandtl number
    mixed convection
    Opis:
    The laminar mixed convection in a two-dimensional rectangular inclined cavity with moving top lid is investigated using the double population thermal lattice Boltzmann method (LBM) at different values of the Richardson number, inclination angle and the Prandtl number. In this problem, velocity components are changed by both buoyancy forces and the inclination angle of the cavity. Comparison of the present results with other available data show good agreement. As the results, the velocity and temperature profiles, the Nusselt number, streamlines and isotherms are presented and discussed. It is shown that the increase of Prandtl number enhances the heat transfer rate, especially at higher values of inclination angle and Richardson number. Moreover, the average Nusselt number at the upper limit of the considered range of the Richardson and Prandtl numbers variability increases by a factor of 9.
    W pracy zajęto się problemem mieszanej konwekcji laminarnej w dwuwymiarowej, prostokątnej i ukośnie usytuowanej szczelinie domkniętej od góry ruchomą pokrywą. W badaniach zastosowano metodę siatki termicznej Boltzmanna (LBM) podwójnej populacji, uwzględniając rożne wartości liczby Richardsona, kąta pochylenia szczeliny oraz liczby Prandtla. W rozważanym zagadnieniu, składowe prędkości zostały poddane zmianom indukowanym siłami wyporu oraz kątem pochylenia szczeliny. Porównanie otrzymanych wynikow analizy z dostępnymi w literaturze danymi wykazało dobrą zgodność. Rezultatem badań w pracy są także profile rozkładu prędkości i temperatury, liczba Nusselta, linie prądu oraz izotermy, które szczegółowo przedyskutowano. Pokazano, że wzrost liczby Prandtla zwiększa transfer ciepła, zwłaszcza dla wyższych wartości kąta pochylenia szczelin i liczby Richardsona. Co więcej, średnia liczba Nusselta przy górnych wartościach przyjętego zakresu zmienności liczb Richardsona i Prandtla wzrasta 9-krotnie.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2013, 51, 2; 447-462
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anisotropic turbulent viscosity and large-scale motive force in thermally driven turbulence at low Prandtl number
    Autorzy:
    Mizerski, K. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/38695701.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Podstawowych Problemów Techniki PAN
    Tematy:
    thermal convection
    heat transport
    Rayleigh number
    Prandtl number
    random heat source
    Opis:
    The fully developed turbulent Boussinesq convection is known to form large-scale rolls, often termed the ‘large-scale circulation’ (LSC). It is an interesting question how such a large-scale flow is created, in particular in systems when the energy input occurs at small scales, when inverse cascade is required in order to transfer energy into the large-scale modes. Here, the small-scale driving is introduced through stochastic, randomly distributed heat source (say radiational). The mean flow equations are derived by means of simplified renormalization group technique, which can be termed a ‘weakly nonlinear renormalization procedure’ based on consideration of only the leading order terms at each step of the recursion procedure, as full renormalization in the studied anisotropic case turns out unattainable. The effective, anisotropic viscosity is obtained and it is shown that the inverse energy cascade occurs via an effective ‘motive force’ which takes the form of transient negative, vertical diffusion.
    Źródło:
    Archives of Mechanics; 2022, 74, 5; 409-436
    0373-2029
    Pojawia się w:
    Archives of Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Flow of viscous incompressible MHD fluid over a suddenly accelerated plate with variable electroconductivity and chemical reaction provoked by radiation
    Autorzy:
    Ngiangia, Alalibo T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1191366.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Chemical reaction
    Electrconductivity
    Grashof number
    MHD
    Prandtl number
    Radiation
    Reynold’s Number
    Opis:
    A study of a suddenly accelerated plate with variable approximated electronegativity with MHD fluid provoked by chemical reaction and radiation is made. The governing hydrodynamical equations of the physical problem was formulated and its solution and analysis showed that increase in electroconductivity, prandtl number, Reynold’s number, Grashof number, chemical reaction and radiation all result to a corresponding increase in the velocity profile of the fluid while magnetic field increase results to a decrease in the velocity profile of the fluid. The shear stress at the wall of the plate was also determined.
    Źródło:
    World Scientific News; 2016, 34; 135-145
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Variable Electroconductivity and Radiation on MHD Couette Flow
    Autorzy:
    Ngiangia, Alalibo T.
    Okechukwu, Amadi
    Powiązania:
    https://bibliotekanauki.pl/articles/1192671.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    MHD
    Electrconductivity
    Prandtl number
    Grashof number
    Reynolds Number
    Radiation
    Couette flow
    Opis:
    A study of Couette flow in cylindrical coordinate under the influence electroconductivity and magnetic field was carried out. Approximate solution of the governing equations and its analysis show decrease in temperature as a result of increase in radiation and Prandtl number. The study also reveals that increase in grashof number, Reynolds number, Prandtl number and electroconductivity result in an increase in velocity distribution while magnetic field increase, lead to a decrease in velocity. The shear stresses of the outer and inner cylinders at the wall of the plates and the heat flux is also determined.
    Źródło:
    World Scientific News; 2016, 47, 2; 241-253
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Finite Different Analysis of Free Convection Flow and Heat Transfer of Casson Nanofluid over a Vertical Plate under the Influence of Thermal Radiation
    Autorzy:
    Sobamowo, M. G.
    Okolie, A. C.
    Powiązania:
    https://bibliotekanauki.pl/articles/1193438.pdf
    Data publikacji:
    2021
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Casson fluid
    Free convection
    Nanoparticle
    Numerical solutions
    Prandtl number
    Thermal radiation
    Opis:
    In this paper, a numerical study on free convection flow and heat transfer of Casson nanofluids over a vertical plate under the influence of thermal radiation is carried out. The governing systems of coupled nonlinear partial differential equations of the flow and heat transfer processes are converted to a system of coupled nonlinear ordinary differential equations through suitable similarity variables. The obtained ordinary differential equations are solved using finite difference method. The results of the numerical solutions are compared with the results of past works as presented in literature and good agreement was established. Also, the effects of thermal radiation; Prandtl number, nanoparticles volume-fraction, shape and type on the flow and heat transfer behaviour of various nanofluids over the flat plate are investigated. The results show that the magnitude of velocity near the plate for the Casson nanofluid parameter decreases for increasing value of the Casson parameter, while temperature increases for increase in Casson fluid parameter. Also, the thermal radiation and volume-fraction of the nanoparticles in the base fluid increase, the velocity, temperature, viscous and thermal boundary layers of the nanofluid increase. However, the velocity of the nanofluid decreases as the Prandtl number increases while the temperature of the nanofluid increases as the Prandtl number increases. The velocity of the nanofluid decreases as the volume-fraction or concentration of the nanoparticle in the base fluid increases. The study can benefit the design engineers enhancing their understanding of the phenomenon for various industrial and engineering applications.
    Źródło:
    World Scientific News; 2021, 157; 38-66
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vertical heat transport at infinite Prandtl number for micropolar fluid
    Autorzy:
    Caggio, M.
    Kalita, P.
    Łukaszewicz, G.
    Mizerski, K. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/38611128.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Podstawowych Problemów Techniki PAN
    Tematy:
    micropolar fluid
    Rayleigh–Benard convection
    heat transport
    Rayleigh number
    Prandtl number
    Nusselt number
    Opis:
    We investigate the upper bound on the vertical heat transport in the fully 3D Rayleigh–Bénard convection problem at the infinite Prandtl number for a micropolar fluid. We obtain a bound, given by the cube root of the Rayleigh number, with a logarithmic correction. The derived bound is compared with the optimal known one for the Newtonian fluid. It follows that the (optimal) upper bound for the micropolar fluid is less than the corresponding bound for the Newtonian fluid at the same Rayleigh number. Moreover, strong microrotational diffusion effects can entirely suppress the heat transfer. In the Newtonian limit our purely analytical findings fully agree with estimates and scaling laws obtained from previous theories significantly relying on phenomenology.
    Źródło:
    Archives of Mechanics; 2020, 72, 6; 525-553
    0373-2029
    Pojawia się w:
    Archives of Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A turbulent heat flux two-equation $Θ^2 - ε_Θ$ closure based on the V2F turbulence model
    Autorzy:
    Karcz, M.
    Badur, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2028986.pdf
    Data publikacji:
    2003
    Wydawca:
    Politechnika Gdańska
    Tematy:
    turbulent heat transfer
    turbulent Prandtl number
    Durbin's model of turbulence
    low Reynolds number models
    Opis:
    The paper deals with the proposition of a two-equation turbulent heat flux closure without any damping function. The model has been based on Durbin's V2F dynamic turbulence closure and the Deng-Wu-Xi thermal turbulence model. Both models have been implemented into the FLUENT code by a User Defined Function. Results of numerical computation have been compared with experimental data for developing a thermal field in a pipe by Nagano and DNS heat transfer prediction for a two-dimensional channel flow by Kasagi.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2003, 7, 3; 375-387
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the onset of thermal convection in a layer of Oldroydian visco-elastic fluid saturated by Brinkman–Darcy porous medium
    Autorzy:
    Chand, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/178803.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    thermal instability
    Oldroydian viscoelastic fluid
    Brinkman–Darcy number
    Prandtl–Darcy number
    Opis:
    Thermal instability in a horizontal layer of Oldroydian visco-elastic fluid in a porous medium is investigated. For porous medium the Brinkman–Darcy model is considered. A linear stability analysis based upon perturbation method and normal mode technique is used to find solution of the fluid layer confined between two free-free boundaries. The onset criterion for stationary and oscillatory convection is derived analytically. The influence of the Brinkman–Darcy, Prandtl–Darcy number, stress relaxation parameter on the stationary and oscillatory convection is studied both analytically and graphically. The sufficient condition for the validity of PES has also been derived.
    Źródło:
    Studia Geotechnica et Mechanica; 2015, 37, 4; 3-10
    0137-6365
    2083-831X
    Pojawia się w:
    Studia Geotechnica et Mechanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Heat transfer study from square cylinder immersed in water-based nanofluid: Effect of orientation
    Autorzy:
    Kaur, Jaspinder
    Ratar, Jatinder Kumar
    Tiwari, Anurag Kumar
    Powiązania:
    https://bibliotekanauki.pl/articles/2173435.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    inclined square cylinder
    nanofluids
    Reynolds number
    Prandtl number
    steady flow
    regime
    nanopłyn
    liczba Reynoldsa
    liczba Prandtla
    przepływ stały
    Opis:
    Heat transfer study from the heated square cylinder at a different orientation angle to the stream of nanofluids has been investigated numerically. CuO-based nanofluids were used to elucidate the significant effect of parameters: Reynolds number (1–40), nanoparticle volume fraction (0.00–0.05), the diameter of the NPs (30–100 mn) and the orientation of square cylinder (0–90). The numerical results were expressed in terms of isotherm contours and average Nusselt number to explain the effect of relevant parameters. Over the range of conditions, the separation of the boundary layers of nanofluids increased with the size of the NPs as compared to pure water. NPs volume fraction and its size had a significant effect on heat transfer rate. The square cylinder of orientation angle (45) gained a more efficient heat transfer cylinder than other orientation angles. Finally, the correlations were developed for the average Nusselt number in terms of the relevant parameters for 45 orientation of the cylinder for new applications.
    Źródło:
    Chemical and Process Engineering; 2022, 43, 2; 243--250
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A numerical study of coupled non-linear equations of thermo-viscous fluid flow in cylindrical geometry
    Autorzy:
    Pothanna, N.
    Aparna, P.
    Gorla, R. S. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/265510.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    Reiner Rivlin Cross viscosity
    thermal conductivity
    thermo-stress viscosity
    Prandtl number
    lepkość
    przenoszenie ciepła
    liczba Prandtla
    Opis:
    In this paper we present numerical solutions to coupled non-linear governing equations of thermo-viscous fluid flow in cylindrical geometry using MATHEMATICA software solver. The numerical results are presented in terms of velocity, temperature and pressure distribution for various values of the material parameters such as the thermo-mechanical stress coefficient, thermal conductivity coefficient, Reiner Rivlin cross viscosity coefficient and the Prandtl number in the form of tables and graphs. Also, the solutions to governing equations for slow steady motion of a fluid have been obtained numerically and compared with the existing analytical results and are found to be in excellent agreement. The results of the present study will hopefully enable a better understanding applications of the flow under consideration.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2017, 22, 4; 965-979
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Enhancement of heat transfer in helical coil heat exchangers using nano-fluids
    Autorzy:
    Parveez, Malik
    Hanief, Mohammad
    Powiązania:
    https://bibliotekanauki.pl/articles/2173429.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    nano-fluids
    heat transfer
    Nusselt number
    Prandtl number
    volume fraction
    nanopłyny
    przenoszenie ciepła
    liczba Nusselta
    liczba Prandtla
    ułamek objętościowy
    Opis:
    Investigation for heat transfer behaviour of Al2O3 and CuO nano-fluid in helical coil heat exchangers was carried out in this study. The thermo-physical properties of the fluids have temperature dependent nature. The main emphasis was to depict the influence of nano-particle concentration by volume on the characteristics of temperature, rate of heat transfer and heat transfer coefficients (convective). In order to enhance efficiency, density and thermal conductivity are considered to be the most important variables. In comparison to water and for equal flow rate, the rate of heat transfer of nano-fluid increases conspicuously. Efficiency of the helical coil heat exchanger increased by 38.80%.
    Źródło:
    Chemical and Process Engineering; 2022, 43, 2; 279--283
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Unsteady MHD natural convective boundary layer flow and heat transfer over a truncated cone in the presence of pressure work
    Autorzy:
    Ajay, C. K.
    Srinivasa, A. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/122607.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    convection
    pressure work
    truncated cone
    MHD
    Prandtl number
    przepływ konwekcyjny
    konwekcja
    stożek ścięty
    liczba Prandtla
    wymiana ciepła
    Opis:
    The aim of the present paper is to analyse the effect of MHD on unsteady natural convection boundary layer flow and heat transfer over a truncated cone in the presence of pressure work. Suitable transformation is utilized to form a system of coupled non-linear partial differential equations for governing both the flow and heat transfer. These equations have been solved numerically by utilizing an implicit finite difference scheme along with quasilinearization method. Here, the computed numerical results are displayed graphically in terms of the local Nusselt number, skin friction, temperature distribution, and velocity distribution for various values of the magnetic and pressure work parameters along with the fixed Prandtl number
    Źródło:
    Journal of Applied Mathematics and Computational Mechanics; 2020, 19, 1; 1-16
    2299-9965
    Pojawia się w:
    Journal of Applied Mathematics and Computational Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Unsteady MHD natural convective boundary layer flow and heat transfer over a truncated cone in the presence of pressure work
    Autorzy:
    Ajay, C. K.
    Srinivasa, A. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1839804.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    convection
    pressure work
    truncated cone
    MHD
    Prandtl number
    przepływ konwekcyjny
    konwekcja
    stożek ścięty
    liczba Prandtla
    wymiana ciepła
    Opis:
    The aim of the present paper is to analyse the effect of MHD on unsteady natural convection boundary layer flow and heat transfer over a truncated cone in the presence of pressure work. Suitable transformation is utilized to form a system of coupled non-linear partial differential equations for governing both the flow and heat transfer. These equations have been solved numerically by utilizing an implicit finite difference scheme along with quasilinearization method. Here, the computed numerical results are displayed graphically in terms of the local Nusselt number, skin friction, temperature distribution, and velocity distribution for various values of the magnetic and pressure work parameters along with the fixed Prandtl number
    Źródło:
    Journal of Applied Mathematics and Computational Mechanics; 2020, 19, 1; 5-16
    2299-9965
    Pojawia się w:
    Journal of Applied Mathematics and Computational Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Combined effects of Soret and Dufour on MHD flow of a power-law fluid over flat plate in slip flow rigime
    Autorzy:
    Saritha, K.
    Rajasekhar, M. N.
    Reddy, B. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/265391.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    liczba Prandtla
    warunki granicy poślizgu
    zjawisko Dufoura
    power-law fluid
    Soret and Dufour number
    slip boundary conditions
    finite difference method
    Prandtl number
    Opis:
    A numerical model is developed to study the Soret and Dufour effects on MHD boundary layer flow of a power-law fluid over a flat plate with velocity, thermal and solutal slip boundary conditions. The governing equations for momentum, energy and mass are transformed to a set of non-linear coupled ordinary differential equations by using similarity transformations. These non-linear ordinary differential equations are first linearized using a quasi-linearization technique and then solved numerically based on the implicit finite difference scheme over the entire range of physical parameters with appropriate boundary conditions. The influence of various governing parameters along with velocity, thermal and mass slip parameters on velocity, temperature and concentration fields are examined graphically. Also, the effects of slip parameters, the Soret and Dufour number on the skin friction, Nusselt number and Sherwood number are studied. Results show that the increase in the Soret number leads to a decrease in the temperature distribution and to an increase in concentration fields.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2018, 23, 3; 689-705
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Heat transfer effects on free convection of viscous dissipative fluid flow over an inclined plate with thermal radiation in the presence of induced magnetic field
    Autorzy:
    Kumar, P. Pramod
    Malga, Bala Siddulu
    Appidi, Lakshmi
    Matta, Sweta
    Powiązania:
    https://bibliotekanauki.pl/articles/1839898.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    promieniowanie cieplne
    pole magnetyczne
    konwekcja swobodna
    thermal radiation
    induced magnetic field
    magnetic Prandtl number
    free convection
    Galerkin finite element method
    viscous dissipation
    Opis:
    The principal objective of the present paper is to know the reaction of thermal radiation and the effects of magnetic fields on a viscous dissipative free convection fluid flow past an inclined infinite plate in the presence of an induced magnetic field. The Galerkin finite element technique is applied to solve the nonlinear coupled partial differential equations and effects of thermal radiation and other physical and flow parameters on velocity, induced magnetic field, along with temperature profiles are explained through graphs. It is noticed that as the thermal radiation increases velocity and temperature profiles decrease and the induced magnetic field profiles increases.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2021, 26, 1; 122-134
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical predictions of laminar flow and free convection heat transfer from an isothermal vertical flat plate
    Autorzy:
    Belhocine, Ali
    Stojanovic, Nadica
    Abdullah, Oday Ibraheem
    Powiązania:
    https://bibliotekanauki.pl/articles/27309866.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    free convective flow
    vertical flat plate
    similarity solution
    boundary layer flow
    dimensionless temperature
    Prandtl number
    Runge-Kutta method
    swobodny przepływ konwekcyjny
    rozwiązanie podobieństwa
    przepływ warstwy granicznej
    bezwymiarowa temperatura
    numer Prandtla
    Metoda Runge-Kutty
    Opis:
    In this present work, the laminar free convection boundary layer flow of a two-dimensional fluid over the vertical flat plate with a uniform surface temperature has been numerically investigated in detail by the similarity solution method. The velocity and temperature profiles were considered similar to all values and their variations are as a function of distance from the leading edge measured along with the plate. By taking into account this thermal boundary condition, the system of governing partial differential equations is reduced to a system of non-linear ordinary differential equations. The latter was solved numerically using the Runge-Kutta method of the fourth-order, the solution of which was obtained by using the FORTRAN code on a computer. The numerical analysis resulting from this simulation allows us to derive some prescribed values of various material parameters involved in the problem to which several important results were discussed in depth such as velocity, temperature, and rate of heat transfer. The definitive comparison between the two numerical models showed us an excellent agreement concerning the order of precision of the simulation. Finally, we compared our numerical results with a certain model already treated, which is in the specialized literature.
    Źródło:
    Archive of Mechanical Engineering; 2022, LXIX, 4; 749--773
    0004-0738
    Pojawia się w:
    Archive of Mechanical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-17 z 17

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