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Wyszukujesz frazę "Jha, A.K." wg kryterium: Autor

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    Wyświetlanie 1-7 z 7
    Tytuł:
    Laminar mixed convection flow from a vertical surface with induced magnetic field and convective boundary
    Autorzy:
    Chaudhary, K.
    Sharma, A.
    Jha, A. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/264352.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    promieniowanie cieplne
    absorpcja promieniowania
    pole magnetyczne
    thermal radiation
    radiation absorption
    convective boundary
    induced magnetic field
    Opis:
    The objective of this investigation is to study the influence of thermal radiation and radiation absorption parameter on a mixed convection flow over a continuously moving porous vertical plate under the action of transverse applied magnetic field taking into account the induced magnetic field with convective boundary. Under certain assumptions, the solutions for the velocity field, temperature distribution and induced magnetic field are obtained. The influences of various parameters on the velocity, temperature fields and on induced magnetic fields are studied graphically. It is also found that the dimensionless Prandtl number, Grashof number, Schmidt number and magnetic parameter have an appreciable influence on the independent variables.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2018, 23, 2; 307-326
    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:
    Magneto-polar fluid flow through a porous medium of variable permeability in slip flow regime
    Autorzy:
    Gaur, P. K.
    Jha, A. K.
    Sharma, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/266273.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    magnetohydrodynamika
    przepuszczalność
    przenikanie ciepła
    polar fluid
    MHD
    permeability
    slip-flow
    heat transfer
    Opis:
    A theoretical study is carried out to obtain an analytical solution of free convective heat transfer for the flow of a polar fluid through a porous medium with variable permeability bounded by a semi-infinite vertical plate in a slip flow regime. A uniform magnetic field acts perpendicular to the porous surface. The free stream velocity follows an exponentially decreasing small perturbation law. Using the approximate method the expressions for the velocity, microrotation, and temperature are obtained. Further, the results of the skin friction coefficient, the couple stress coefficient and the rate of heat transfer at the wall are presented with various values of fluid properties and flow conditions.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2016, 21, 2; 323-339
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transient free convective radiative flow between vertical parallel plates heated/cooled asymmetrically with heat generation and slip condition
    Autorzy:
    Gaur, P. K.
    Sharma, R. P.
    Jha, A. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/264930.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    magnetohydrodynamika
    wytwarzanie ciepła
    promieniowanie cieplne
    MHD
    slip flow
    heat generation
    thermal radiation
    Opis:
    Investigation of an MHD convective flow of viscous, incompressible and electrically conducting fluid through a porous medium bounded by two infinite vertical parallel porous plates is carried out. Forchheimer-Brinkman extended Darcy model is assumed to simulate momentum transfer within the porous medium. A magnetic field of uniform strength is applied normal to the plates. The analytical results are evaluated numerically and the presented graphically to discuss in detail the effects of different parameter entering into the problem.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2018, 23, 2; 365-384
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nanofluid motion past a shrinking sheet in porous media under the impact of radiation and heat source/sink
    Autorzy:
    Sharma, R. P.
    Jha, A. K.
    Gaur, P. K.
    Mishra, S. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/264665.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    magnetohydrodynamika
    promieniowanie cieplne
    wytwarzanie ciepła
    MHD
    nanofluid
    shrinking surface
    thermal radiation
    heat generation
    porous medium
    Opis:
    An investigation has been carried out for the MHD 3-dimensional flow of nanofluid over a shrinking sweet saturating a porous media in the presence of thermal radiation and heat generation. Convective boundary conditions for the flow phenomena are used in the present analysis. The governing equations are reduced to ODEs employing suitable similarity transformations. The solutions of formulated differential equations have been attained mathematically by fourth order R-K technique along with the shooting method. The impact of the governing constraints on momentum, heat, and local Nusselt number, are explored. It is noticed that the momentum and heat decrease with raise in the porosity variable, temperature reduces with an enhance in the thermal radiation variable, and temperature enhances with an enhance in the heat source/sink parameter.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2019, 24, 4; 183-199
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Soil temperature prediction from air temperature for alluvial soils in lower Indo-Gangetic plain
    Autorzy:
    Barman, D.
    Kundu, D.K.
    Pal, S.
    Chakraborty, A.K.
    Jha, A.K.
    Mazumdar, S.P.
    Saha, R.
    Bhattacharyya, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/25358.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Opis:
    Soil temperature is an important factor in biogeochemical processes. On-site monitoring of soil temperature is limited in spatio-temporal scale as compared to air temperature data inventories due to various management difficulties. Therefore, empirical models were developed by taking 30-year long-term (1985-2014) air and soil temperature data for prediction of soil temperatures at three depths (5, 15, 30 cm) in morning (0636 Indian standard time) and afternoon (1336 Indian standard time) for alluvial soils in lower Indo-Gangetic plain. At 5 cm depth, power and exponential regression models were best fitted for daily data in morning and afternoon, respectively, but it was reverse at 15 cm. However, at 30 cm, exponential models were best fitted for both the times. Regression analysis revealed that in morning for all three depths and in afternoon for 30 cm depth, soil temperatures (daily, weekly, and monthly) could be predicted more efficiently with the help of corresponding mean air temperature than that of maximum and minimum. However, in afternoon, prediction of soil temperature at 5 and 15 cm depths were more precised for all the time intervals when maximum air temperature was used, except for weekly soil temperature at 15 cm, where the use of mean air temperature gave better prediction.
    Źródło:
    International Agrophysics; 2017, 31, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Unsteady/steady natural convection flow of reactive viscous fluid in a vertical annulus
    Autorzy:
    Jha, B. K.
    Samaila, A. K.
    Ajibade, A. O.
    Powiązania:
    https://bibliotekanauki.pl/articles/265663.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    konwekcja naturalna
    lepki płyn
    egzotermiczna otulina
    unsteady/steady natural convection flow
    reactive viscous fluid
    exothermic
    open ended vertical annulus
    Opis:
    This paper presents both analytical and numerical analyses of a fully developed unsteady/steady natural convection flow of a reactive viscous fluid in an open ended vertical annulus. Analytical expressions for velocity, temperature, skin-friction and rate of heat transfer are obtained after simplifying and solving the governing differential equations with reasonable approximations. The interesting result found in this study is that an increase in non-dimensional time (t) , increases both temperature and velocity profiles until a steady-state value is attained. Subsequent results obtained by numerical calculations show excellent agreement with analytical results.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2013, 18, 1; 73-83
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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