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Wyświetlanie 1-15 z 19
Tytuł:
Plane strain deformation in a thermoelastic microelongated solid with internal heat source
Autorzy:
Ailawalia, P.
Sachdeva, S. K.
Pathania, D. S.
Powiązania:
https://bibliotekanauki.pl/articles/265041.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
thermoelasticity
microelongation
heat source
normal mode analysis
termosprężystość
źródło ciepła
odkształcenie
Opis:
The purpose of this paper is to study the two dimensional deformation due to an internal heat source in a thermoelastic microelongated solid. A mechanical force is applied along an overlaying elastic layer of thickness h. The normal mode analysis has been applied to obtain the exact expressions for the displacement component, force stress, temperature distribution and microelongation. The effect of the internal heat source on the displacement component, force stress, temperature distribution and microelongation has been depicted graphically for Green-Lindsay (GL) theory of thermoelasticity.
Źródło:
International Journal of Applied Mechanics and Engineering; 2015, 20, 4; 717-731
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Two-dimensional deformation in a thermoelastic solid with microtemperatures subjected to an internal heat source
Autorzy:
Ailawalia, P.
Budhiraja, S.
Singh, J.
Powiązania:
https://bibliotekanauki.pl/articles/265902.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
termoelastyczność
źródło ciepła
mikrotemperatura
thermoelasticity
internal heat source
normal mode
microtemperatures
Opis:
The purpose of this paper is to study the two dimensional deformation in a generalized thermoelastic medium with microtemperatures having an internal heat source subjected to a mechanical force. The force is acting along the interface of generalized thermoelastic half space and generalized thermoelastic half space with microtemperatures having an internal heat source. The normal mode analysis has been applied to obtain the exact expressions for the considered variables. The effect of internal heat source and microtemperatures on the above components has been depicted graphically.
Źródło:
International Journal of Applied Mechanics and Engineering; 2018, 23, 1; 5-21
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A general study of fundamental solutions in aniotropicthermoelastic media with mass diffusion and voids
Autorzy:
Chawla, Vijay
Kamboj, Deepmala
Powiązania:
https://bibliotekanauki.pl/articles/1839675.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
termosprężystość
dyfuzja masy
źródło ciepła
general solution
fundamental solution
thermoelastic
voids
mass diffusion
Opis:
The present paper deals with the study of a fundamental solution in transversely isotropic thermoelastic media with mass diffusion and voids. For this purpose, a two-dimensional general solution in transversely isotropic thermoelastic media with mass diffusion and voids is derived first. On the basis of the obtained general solution, the fundamental solution for a steady point heat source on the surface of a semi-infinite transversely isotropic thermoelastic material with mass diffusion and voids is derived by nine newly introduced harmonic functions. The components of displacement, stress, temperature distribution, mass concentration and voids are expressed in terms of elementary functions and are convenient to use. From the present investigation, some special cases of interest are also deduced and compared with the previous results obtained, which prove the correctness of the present result.
Źródło:
International Journal of Applied Mechanics and Engineering; 2020, 25, 4; 22-41
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radiation effects on MHD boundary layer flow and heat transfer over a nonlinear stretching surface with variable wall temperature in the presence of non-uniform heat source/sink
Autorzy:
Devi, S. P. A.
Agneeshwari, M.
Raj, J. W. S.
Powiązania:
https://bibliotekanauki.pl/articles/947377.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
magnetohydrodynamika
promieniowanie
źródło ciepła
MHD
radiation
non-uniform heat source/sink
variable wall temperature
Opis:
In this paper, an investigation is made to analyze the effects of radiation on an MHD boundary layer flow and heat transfer over a nonlinear stretching surface with variable wall temperature and non-uniform heat source/sink. A suitable similarity transformation is used to transform the governing nonlinear partial differential equations into a system of nonlinear ordinary differential equations by using the Nachtsheim Swigert shooting iteration technique together with the fourth order Runge Kutta method. The effects of various physical parameters over a dimensionless velocity and dimensionless temperature are presented graphically. The numerical results for the skin friction co-efficient and non-dimensional rate of heat transfer are presented and discussed for several sets of values of the parameters. Comparisons of numerical results are made with the earlier published results under limiting cases.
Źródło:
International Journal of Applied Mechanics and Engineering; 2018, 23, 2; 289-305
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mathematical modeling of magneto pulsatile blood flow through a porous medium with a heat source
Autorzy:
Sharma, B. K.
Sharma, M.
Gaur, R. K.
Mishra, A.
Powiązania:
https://bibliotekanauki.pl/articles/266184.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
heat source
blood flow
porous medium
MHD
źródło ciepła
przepływ krwi
materiały porowate
magnetohydrodynamika
Opis:
In the present study a mathematical model for the hydro-magnetic non-Newtonian blood flow in the non-Darcy porous medium with a heat source and Joule effect is proposed. A uniform magnetic field acta perpendicular to the porous surface. The governing non-linear partial differential equations have been solved numerically by applying the explicit finite difference Method (FDM). The effects of various parameters such as the Reynolds number, hydro-magnetic parameter, Forchheimer parameter, Darcian parameter, Prandtl number, Eckert number, heat source parameter, Schmidt number on the velocity, temperature and concentration have been examined with the help of graphs. The present study finds its applications in surgical operations, industrial material processing and various heat transfer operations.
Źródło:
International Journal of Applied Mechanics and Engineering; 2015, 20, 2; 385-396
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radiation and magnetohydrodynamic effects on convective nanofluid past an inclined plate in the presence of a chemical reaction
Autorzy:
Palani, G.
Arutchelvi, A.
Powiązania:
https://bibliotekanauki.pl/articles/2174208.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
źródło ciepła
nanociecz
ośrodek porowaty
lepkość
finite difference
nanofluids
viscous dissipation
heat source
porous medium
Opis:
This computational work explores the heat and mass transfer of copper water nanofluid flowing along an inclined plate with varying surface temperature and concentration in the presence of a magnetic field and radiation through a permeable medium. The dimensionless governing equations are solved numerically using an efficient finite-difference technique, which is fast convergent and unconditionally stable. The findings are reviewed and illustrated through graphs for pertinent parameters.
Źródło:
International Journal of Applied Mechanics and Engineering; 2022, 27, 3; 115--126
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Two dimensional deformation of a multilayered thermoelastic half-space due to surface loads and heat source
Autorzy:
Vashishth, A. K.
Rani, K.
Singh, K.
Powiązania:
https://bibliotekanauki.pl/articles/265888.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
źródło ciepła
obciążenia powierzchniowe
termoelastyczność
multilayered half-space
thermoelastic
propagator matrix
surface loads
heat source
Opis:
This article deals with a 2-D problem of quasi-static deformation of a multilayered thermoelastic medium due tovsurface loads and heat source. The propagator matrix is obtained for the multilayered formalism of thermoelastic layers. Analytical solutions, in terms of the displacements, stresses, heat flux and temperature function, are obtained for normal strip and line loads, shear strip and line loads and strip and line heat sources. Numerical computation of the obtained analytical expressions is also done. The effects of layering have been studied. For the verification of the results, results of earlier studies have been obtained as particular cases of the present study.
Źródło:
International Journal of Applied Mechanics and Engineering; 2020, 25, 1; 177-197
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heat and mass transfer effects on MHD flow past an inclined porous plate in the presence of chemical reaction
Autorzy:
Sandhya, A.
Ramana Reddy, G. V.
Deekshitulu, V. S.R.G.
Powiązania:
https://bibliotekanauki.pl/articles/1839806.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
reakcja chemiczna
źródło ciepła
promieniowanie cieplne
chemical reaction
heat source
inclined plate
porous medium
thermal radiation
Opis:
The impact of heat and mass transfer effects on an MHD flow past an inclined porous plate in the presence of a chemical reaction is investigated in this study. An effort has been made to explain the Soret effect and the influence of an angle of inclination on the flow field, in the presence of the heat source, chemical reaction and thermal radiation. The momentum, energy and concentration equations are derived as coupled second order partial differential equations. The model is non-dimensionalized and shown to be controlled by a number of dimensionless parameters. The resulting dimensionless partial differential equations can be solved by using a closed analytical method. Numerical results for pertaining parameters, such as the Soret number (Sr), Grashof number (Gr) for heat and mass transfer, the Schmidt number (Sc), Prandtl number (Pr), chemical reaction parameter (Kr), permeability parameter (K), magnetic parameter (M), skin friction (τ), Nusselt number (Nu) and Sherwood number (Sh) on the velocity, temperature and concentration profiles are presented graphically and discussed qualitatively.
Źródło:
International Journal of Applied Mechanics and Engineering; 2020, 25, 3; 86-102
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of soret effect on mhd mixed convection flow of visco-elastic fluid past a vertical surface with hall effect
Autorzy:
Jha, A. K.
Choudhary, K.
Sharma, A.
Powiązania:
https://bibliotekanauki.pl/articles/955306.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
dyfuzja termiczna
magnetohydrodynamika
źródło ciepła
thermal diffusion
Hall parameter
MHD
elastic parameters
Schmidt number
heat source
Opis:
The present paper deals with the unsteady motion of an MHD free convection flow of an incompressible non- Newtonian viscoelastic fluid past an infinite vertical plate in the presence of a heat source and Soret effect. A parametric study illustrating the influence of various parameters on the temperature, velocity as well as on the skin-friction and rate of heat transfer is conducted. The results of the effect of the magnetic field, the parameter describing the non-Newtonian behavior, and the velocity of suction and injection on both the velocity and temperature distributions are examined and shown graphically.
Źródło:
International Journal of Applied Mechanics and Engineering; 2014, 19, 1; 79-95
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal stresses due to non-uniform internal heat generation in functionally graded hollow cylinder
Autorzy:
Rani, P.
Singh, K.
Muwal, R.
Powiązania:
https://bibliotekanauki.pl/articles/1839847.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
źródło ciepła
temperatura
cylinder
functionally graded material
non-uniform heat source
thermal stresses
hollow thick cylinder
temperature
Opis:
Thermal stresses of a functionally graded hollow thick cylinder due to non-uniform internal heat generation are studied in this paper. Analytical solutions are obtained with radially varying properties by using the theory of elasticity. Thermal stresses distribution for different values of the powers of the module of elasticity and varying power law index of heat generation are studied. The results have been computed numerically and illustrated graphically.
Źródło:
International Journal of Applied Mechanics and Engineering; 2021, 26, 2; 186-200
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of chemical reaction and radiation on double diffusive flow of a viscous, dissipative fluid through porous medium in a rectangular cavity with heat sources
Autorzy:
Raju, T. L.
Muralidhar, P.
Powiązania:
https://bibliotekanauki.pl/articles/955281.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
wymiana ciepła
wymiana masy
promieniowanie
rozproszenie
źródło ciepła
heat and mass transfer flow
radiation
dissipation
heat sources
rectangular cavity
porous medium
Opis:
In this paper, an attempt is made to discuss the combined influence of radiation and dissipation on the convective heat and mass transfer flow of a viscous fluid through a porous medium in a rectangular cavity using the Darcy model. Making use of the incompressibility, the governing non-linear coupled equations for the momentum, energy and diffusion are derived in terms of the non-dimensional stream function, temperature and concentration. The Galerkin finite element analysis with linear triangular elements is used to obtain the global stiffness matrices for the values of stream function, temperature and concentration. These coupled matrices are solved using an iterative procedure and expressions for the stream function, temperature and concentration are obtained as linear combinations of the shape functions. The behavior of temperature, concentration, the Nusselt number and Sherwood number is discussed computationally for different values of the governing parameters, such as the Rayleigh Number (Ra), heat source parameter (α), Eckert number (Ec), Schmidt Number (Sc), Soret parameter (S0), buoyancy ratio (N).
Źródło:
International Journal of Applied Mechanics and Engineering; 2013, 18, 4; 1115-1150
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study on fractional order thermoelastic half space
Autorzy:
Roy, Sourov
Lahiri, Abhijit
Powiązania:
https://bibliotekanauki.pl/articles/1839784.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
termosprężystość
źródło ciepła
transformata Laplace'a
thermoelasticity
instantaneous heat source
fractional order
thermoelastic half space
eigen value approach
Opis:
In this paper, we consider a one dimensional problem on a fractional order generalized thermoelasticity in half space subjected to an instantaneous heat source. The Laplace transform as well as eigen value approach techniques are applied to solve the governing equations of motion and heat conduction. Closed form solutions for displacement, temperature and stress are obtained and presented graphically.
Źródło:
International Journal of Applied Mechanics and Engineering; 2020, 25, 4; 191-202
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interactions due to moving heat sources in generalized thermoelastic half-space using L-S model
Autorzy:
Sarkar, N.
Lahiri, A.
Powiązania:
https://bibliotekanauki.pl/articles/265642.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
termosprężystość
źródło ciepła
procedura Laplace'a
generalized thermoelasticity
L-S model
elastic half-space
moving heat sources
eigenvalue approach
Opis:
A one-dimensional problem for a homogeneous, isotropic and thermoelastic half-space subjected to a moving plane of heat source on the boundary of the space, which is traction free, is considered in the context of Lord- Shulaman model (L-S model) of thermoelasticity. The Laplace transform and eigenvalue approach techniques are used to solve the resulting non-dimensional coupled equations. Numerical results for the temperature, thermal stress, and displacement distributions are represented graphically and discussed.
Źródło:
International Journal of Applied Mechanics and Engineering; 2013, 18, 3; 815-831
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unsteady convection flow of a magnetomicropolar fluid past a vertical porous plate
Autorzy:
Jain, N. C.
Gupta, P.
Sharma, B.
Powiązania:
https://bibliotekanauki.pl/articles/266073.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
źródło ciepła
pole magnetyczne
materiały porowate
prędkość poślizgu
heat source/sink
magnetic field
porous medium
slip velocity
unsteady
vertical plate
Opis:
The paper deals with an unsteady two dimensional laminar slip flow of a viscous incompressible magnetomicropolar fluid past a semi infinite porous plate embedded in a porous medium. The flow is under the influence of a transverse magnetic field and heat source/sink. The free stream velocity follows an exponentially increasing or decreasing small perturbation law. The porous surface absorbs the fluid with time varying suction velocity. Expressions are obtained for velocity and temperature fields, mean angular velocity, skin friction and the Nusselt number.
Źródło:
International Journal of Applied Mechanics and Engineering; 2013, 18, 1; 43-53
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heat transfer of viscoelastic fluid flow due to nonlinear stretching sheet with internal heat source
Autorzy:
Nandeppanavar, M. M.
Siddalingappa, M. N.
Jyoti, H.
Powiązania:
https://bibliotekanauki.pl/articles/265070.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
płyn lepkosprężysty
warstwa graniczna przepływu
rozciąganie
źródło ciepła
przenikanie ciepła
viscoelastic fluid
boundary layer flow
exponential stretching sheet
heat source/sink
heat transfer
skin friction
Opis:
In the present paper, a viscoelastic boundary layer flow and heat transfer over an exponentially stretching continuous sheet in the presence of a heat source/sink has been examined. Loss of energy due to viscous dissipation of the non-Newtonian fluid has been taken into account in this study. Approximate analytical local similar solutions of the highly non-linear momentum equation are obtained for velocity distribution by transforming the equation into Riccati-type and then solving this sequentially. Accuracy of the zero-order analytical solutions for the stream function and velocity are verified by numerical solutions obtained by employing the Runge-Kutta fourth order method involving shooting. Similarity solutions of the temperature equation for non-isothermal boundary conditions are obtained in the form of confluent hypergeometric functions. The effect of various physical parameters on the local skin-friction coefficient and heat transfer characteristics are discussed in detail. It is seen that the rate of heat transfer from the stretching sheet to the fluid can be controlled by suitably choosing the values of the Prandtl number Pr and local Eckert number E, local viscioelastic parameter k1 and local heat source/ sink parameter β.
Źródło:
International Journal of Applied Mechanics and Engineering; 2013, 18, 3; 739-760
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 19

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