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Wyszukujesz frazę "Sharma, A" wg kryterium: Autor

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    Wyświetlanie 1-11 z 11
    Tytuł:
    Propagation of torsional surface waves in a nonhomogeneous half-space with circular irregularity in free surface
    Autorzy:
    Sethi, M.
    Sharma, A. K.
    Sharma, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/266151.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    propagacja fal
    dyspersja
    prędkość fali
    non-homogeneous media
    torsional waves
    rigidity
    irregularity
    Opis:
    The present paper studies the effect of circular regularity on propagation of torsional surface waves in an elastic non-homogeneous half-space. Both rigidity and density of the half-space are assumed to vary inversely linearly with depth. Separation of variable method has been used to get the analytical solutions for the dispersion equation of the torsional surface waves. Also, the effects of non-homogeneity and irregularity on the phase velocity of torsional surface waves have shown graphically.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2018, 23, 4; 929-939
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Propagation of SH waves in an regular non homogeneous monoclinic crustal layer lying over a non-homogeneous semi-infinite medium
    Autorzy:
    Sethi, M.
    Sharma, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/265788.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    równania różniczkowe
    prędkość fali sprężystej
    sejsmologia
    SH waves
    monoclinic
    non homogeneity
    differential equations
    Opis:
    The present paper discusses the dispersion equation for SH waves in a non-homogeneous monoclinic layer over a semi infinite isotropic medium. The wave velocity equation has been obtained. In the isotropic case, when non-homogeneity is absent, the dispersion equation reduces to the standard SH wave equation. The dispersion curves are depicted by means of graphs for different values of non-homogeneity parameters for the layer and semi-infinite medium.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2016, 21, 2; 447-459
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mathematical modeling of torsional surface wave propagation in a non-homogeneous transverse isotropic elastic solid semi-infinite medium under a layer
    Autorzy:
    Sethi, M.
    Sharma, A.
    Vasishth, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/265089.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    non-homogeneous media
    torsional surface waves
    rigidity
    fala powierzchniowa
    propagacja fal
    modelowanie matematyczne
    Opis:
    The present paper deals with the mathematical modeling of the propagation of torsional surface waves in a non-homogeneous transverse isotropic elastic half-space under a rigid layer. Both rigidities and density of the half-space are assumed to vary inversely linearly with depth. Separation of variable method has been used to get the analytical solutions for the dispersion equation of the torsional surface waves. Also, the effects of nonhomogeneities on the phase velocity of torsional surface waves have been shown graphically. Also, dispersion equations have been derived for some particular cases, which are in complete agreement with some classical results.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2017, 22, 2; 415-426
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    Study on harmonic analysis of functionally graded plates using FEM
    Autorzy:
    Sharma, A. K.
    Sharma, P.
    Chauhan, P. S.
    Bhadoria, S. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/265506.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    metoda elementów skończonych
    drgania swobodne
    amplituda drgań
    finite element method
    functionally graded plate
    free vibration
    Opis:
    This paper presents the harmonic and vibration analysis of functionally graded plates using the finite element method. Initially, the plates are assumed isotropic and the material properties of it are assumed to vary continuously through their thickness direction according to a power-law distribution of the volume fractions of the plate constituents. The four noded shell element is used to analyse the functionally graded plates. Four functionally graded plates-Al/Al2O3, Al/ZrO2, Ti–6Al–4V/Aluminium oxide, and SUS304/Si3N4 are considered in the study, and their results are obtained so that the right choice can be made in applications in high temperature environment and in reducing the vibration amplitudes in applications such as aircrafts, rockets, missiles, etc. Numerical results for the natural frequency and harmonic response amplitude are presented. Results are compared and validated with available results in the literature. Effects of boundary conditions, material and damping on natural frequency and harmonic response of the functionally graded plates are also investigated.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2018, 23, 4; 941-961
    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:
    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:
    Effects of chemical reaction on magneto-micropolar fluid flow from a radiative surface with variable permeability
    Autorzy:
    Sharma, B. K.
    Singh, A. P.
    Yadav, K.
    Chaudhary, R. C.
    Powiązania:
    https://bibliotekanauki.pl/articles/264925.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    reakcja chemiczna
    płyn mikropolarny
    magnetohydrodynamika
    wymiana ciepła
    chemical reaction
    micropolar fluid
    microrotation
    magnetohydrodynamics
    heat and mass transfer
    Opis:
    This paper presents a study of a hydromagnetic free convection flow of an electrically conducting micropolar fluid past a vertical plate through a porous medium with a heat source, taking into account the homogeneous chemical reaction of first order. A uniform magnetic field has also been considered in the study which acts perpendicular to the porous surface of the above plate. The analysis has been done by assuming varying permeability of the medium and the Rosseland approximation has been used to describe the radiative heat flux in the energy equation. Numerical results are presented graphically in the form of velocity, micro- rotation, concentration and temperature profiles, the skin-friction coefficient, the couple stress coefficient, the rate of heat and mass transfers at the wall for different material parameters. The study clearly demonstrates how a chemical reaction influences the above parameters under given conditions.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2013, 18, 3; 833-851
    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
      Wyświetlanie 1-11 z 11

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