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Wyszukujesz frazę "Sankar, D. S." wg kryterium: Autor

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    Wyświetlanie 1-5 z 5
    Tytuł:
    A numerical study of dissipative chemically reactive radiative MHD flow past a vertical cone with nonuniform mass flux
    Autorzy:
    Sambath, P.
    Sankar, D. S.
    Viswanathan, K. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/265381.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    swobodna konwekcja
    promieniowanie cieplne
    lepkość
    magnetohydrodynamika
    free convection
    finite difference
    vertical cone
    MHD
    thermal radiation
    viscous dissipation
    Opis:
    A computational model is presented to explore the properties of heat source, chemically reacting radiative, viscous dissipative MHD flow of an incompressible viscous fluid past an upright cone under inhomogeneous mass flux. A numerical study has been carried out to explore the mass flux features with the help of Crank-Nicolson finite difference scheme. This investigation reveals the influence of distinct significant parameters and the obtained outputs for the transient momentum, temperature and concentration distribution near the boundary layer is discussed and portrayed graphically for the active parameters such as the Schmidt number Sc, thermal radiation Rd, viscous dissipation parameter […], chemical reaction parameter […], MHD parameter M and heat generation parameter ]…]. The significant effect of parameters on shear stress, heat and mass transfer rates are also illustrated.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2020, 25, 1; 159-176
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of pressure gradient on convective heat transfer in a boundary layer flow of a Maxwell fluid past a stretching sheet
    Autorzy:
    Kashif, A. N.
    Salah, F.
    Sankar, D. S.
    Izyan, M. D. N.
    Viswanathan, K. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2106449.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    płyn Maxwell'a
    przenoszenie ciepła
    rozciąganie
    pressure gradient parameter
    convective heat transfer
    Maxwell fluid
    stretching sheet
    Opis:
    The pressure gradient term plays a vital role in convective heat transfer in the boundary layer flow of a Maxwell fluid over a stretching sheet. The importance of the effects of the term can be monitored by developing Maxwell’s equation of momentum and energy with the pressure gradient term. To achieve this goal, an approximation technique, i.e. Homotopy Perturbation Method (HPM) is employed with an application of algorithms of Adams Method (AM) and Gear Method (GM). With this approximation method we can study the effects of the pressure gradient [...], Deborah number [...], the ratio of the free stream velocity parameter to the stretching sheet parameter [...] and Prandtl number [...] on both the momentum and thermal boundary layer thicknesses. The results have been compared in the absence and presence of the pressure gradient term m. It has an impact of thinning of the momentum and boundary layer thickness for non-zero values of the pressure gradient. The convergence of the system has been taken into account for the stretching sheet parameter. The result of the system indicates the significant thinning of the momentum and thermal boundary layer thickness in velocity and temperature profiles.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2021, 26, 3; 104--118
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Axisymmetric free vibration of layered cylindrical shell filled with fluid
    Autorzy:
    Izyan, M. D. Nurul
    Sabri, Nur Ain Ayunni
    Hafizah, A. K. Nor
    Sankar, D. S.
    Viswanathan, K. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2106463.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    drgania swobodne
    powłoka cylindryczna
    efekt Love'a
    axisymmetric
    free vibration
    cylindrical shell
    Love’s first approximation theory
    inviscid fluid
    spline approximation
    eigenvalues
    Opis:
    The aim of the study is to analyse the axisymmetric free vibration of layered cylindrical shells filled with a quiescent fluid. The fluid is assumed to be incompressible and inviscid. The equations of axisymmetric vibrations of layered cylindrical shell filled with fluid, on the longitudinal and transverse displacement components are obtained using Love’s first approximation theory. The solutions of displacement functions are assumed in a separable form to obtain a system of coupled differential equations in terms of displacement functions. The displacement functions are approximated by Bickley-type splines. A generalized eigenvalue problem is obtained and solved numerically for a frequency parameter and an associated eigenvector of spline coefficients. Two layered shells with three different types of materials under clamped-clamped boundary conditions are considered. Parametric studies are made on the variation of the frequency parameter with respect to length-to-radius ratio and length-to-thickness ratio.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2021, 26, 4; 63--76
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microstructural Characterization and Mechanical Behavior of Copper Matrix Composites Reinforced by B4C and Sea Shell Powder
    Autorzy:
    Sankar, M.
    Pradeep Devaneyan, S.
    Peter Pushpanathan, D.
    Myszka, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/106969.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    Cu-base MMC
    Sea Shell Powder-B4C Reinforcement
    wear properties
    microstructure
    Opis:
    This paper investigates the microstructural and mechanical properties of copper metal matrix composites reinforced with B4C and crushed sea shell particles (fabricated using powder metallurgy). In powder form, copper is widely used in structural applications. Copper also possesses very good electrical and thermal conductivity, ductility, and corrosion resistance. B4C is the third-hardest-known material that also possesses excellent toughness and wear resistance. Sea shells are readily available along coastal areas. Therefore, an attempt has been made in this work to investigate the feasibility of its utilization in powder metallurgy. Two batches of samples were prepared. In the first batch, the percentage of boron carbide and copper powder were varied, and seashell powder was not included. In the second batch, the percentages of B4C, copper, and sea shell powder were varied in order to assess the change effected by the sea shell material. The sintered samples of both batches were subjected to microstructural characterization to ascertain the homogeneous distribution of the reinforcements. The microhardness and wear resistance of all of the fabricated samples were assessed. The results confirmed that the inclusion of 2% sea shell powder (by weight) with 10% boron carbide improved the wear resistance and hardness of the composite.
    Źródło:
    Journal of Casting & Materials Engineering; 2018, 2, 1; 24-29
    2543-9901
    Pojawia się w:
    Journal of Casting & Materials Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A cooperative game approach applied to the furniture supply chain of clusters for improving its competitive value: a case study
    Autorzy:
    Ramırez-Rios, D. G.
    Puello-Pereira, N.
    Ferro-Correa, J.
    Sankar-Sana, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/971048.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    cooperative games
    industrial cluster
    supply chain
    Shapley value
    Opis:
    The paper studies a cooperative game, which is being played among the firms, involved in furniture industries, belonging to the same cluster. Due to the increased competition at the local and global levels, cooperation among the business entities is practically the only way to survive in the cluster. Consequently, a cooperative game model is proposed for the firms, associated in a vertical channel, where its performance indices are measured by one of its indicators of competitiveness at an entrepreneurial level versus the value of the cluster itself. As a case study, a competitive value analysis is done for the Colombian furniture cluster by indicating the characteristics and existing conditions of the cluster in the department of Atlantico in Colombia. Moreover, this paper analyzes and establishes an optimal feasible solution of cooperative game among the principal firms using Shapley value method.
    Źródło:
    Control and Cybernetics; 2016, 45, 1; 95-110
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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