Author
Manab Kumar Das
Other affiliations: Indian Institute of Technology Guwahati, Indian Institute of Technology Kanpur, Indian Institutes of Technology
Bio: Manab Kumar Das is an academic researcher from Indian Institute of Technology Kharagpur. The author has contributed to research in topics: Reynolds number & Nusselt number. The author has an hindex of 20, co-authored 71 publications receiving 2634 citations. Previous affiliations of Manab Kumar Das include Indian Institute of Technology Guwahati & Indian Institute of Technology Kanpur.
Topics: Reynolds number, Nusselt number, Turbulence, Jet (fluid), Heat transfer
Papers published on a yearly basis
Papers
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TL;DR: In this article, the authors investigated the behavior of nanofluids inside a two-sided lid-driven differentially heated square cavity to gain insight into convective recirculation and flow processes induced by a nano-fluid.
1,797 citations
TL;DR: In this paper, the authors have proposed a method for the computation of natural convection flow in a square enclosure with a centered internal conducting square block both of which are given an inclination angle.
115 citations
TL;DR: In this paper, a two-dimensional enclosure with three flat and one wavy walls is numerically investigated and the results obtained show that the angle of inclination affects the flow and heat transfer rate in the cavity.
86 citations
TL;DR: In this article, the integral forms of the governing equations are solved numerically using finite-volume method in non-orthogonal body-fitted coordinate system and SIMPLE algorithm with higher-order upwinding scheme are used.
78 citations
TL;DR: In this paper, a two-dimensional, steady, mixed convection flow in an enclosure filled with a Darcian fluid-saturated uniform porous medium is considered and the governing equations are normalized and solved numerically with boundary conditions by finite volume approach using third order accurate upwinding scheme.
Abstract: Two-dimensional, steady, mixed convection flow in an enclosure filled with a Darcian fluid-saturated uniform porous medium is considered. Both the left wall and the right wall are moving upwards with same velocity. They are maintained at cold and hot constant temperatures respectively. The top and the bottom walls are fixed and are thermally insulated. The governing equations are normalized and solved numerically with boundary conditions by finite volume approach using third order accurate upwinding scheme (deferred QUICK). To validate the code, comparisons are made with previously published work and are found to be in excellent agreement. The study is conducted by varying the key parameters i.e., Richardson number (Ri = Gr/Re 2), Darcy number (Da = κ/H 2) and Grashof number (Gr = g β H 3ΔT/ν 2) and fixing Prandtl number (Pr = 0.71). A parametric study is conducted and a set of streamline and isotherm plots are presented. The average Nusselt number reaches a value of 1 asymptotically when the Ri is gradua...
68 citations
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TL;DR: In this article, a similarity solution is presented which depends on the Prandtl number Pr, Lewis number Le, Brownian motion number Nb and thermophoresis number Nt.
1,565 citations
01 Jan 2011
TL;DR: In this paper, the non-similar solutions are presented which depend on the Magnetic parameter M respectively, the obtained equations have been solved by explicit finite difference method and temperature and concentration profiles are discussed for the different values of the above parameters with different time steps.
Abstract: Unsteady heat and mass flow of a nanofluid past a stretching sheet with thermal radiation in the presence of magnetic field is studied. To obtain non-similar equation, continuity, momentum, energy and concentration equations have been non-dimensionalised by usual transformation. The non-similar solutions are presented here which depends on the Magnetic parameter M respectively . The obtained equations have been solved by explicit finite difference method. The temperature and concentration profiles are discussed for the different values of the above parameters with different time steps.
956 citations
TL;DR: In this article, a review of the fluid flow and heat transfer characteristics of nanofluids in forced and free convection flows and potential applications of nanopharticles is presented.
Abstract: Research in convective heat transfer using suspensions of nanometer-sized solid particles in base liquids started only over the past decade. Recent investigations on nanofluids, as such suspensions are often called, indicate that the suspended nanoparticles markedly change the transport properties and heat transfer characteristics of the suspension. This second part of the review covers fluid flow and heat transfer characteristics of nanofluids in forced and free convection flows and potential applications of nanofluids. Opportunities for future research are identified as well. Keywords: Nanofluids; Nanoparticles; Heat transfer; Thermal conductivity.
430 citations
TL;DR: In this paper, the steady boundary-layer flow of a nanofluid past a moving semi-infinite flat plate in a uniform free stream is investigated, where the plate is assumed to move in the same or opposite directions to the free stream.
362 citations
TL;DR: In this article, the effects of the volume fraction, the size of nanoparticles, and the average temperature of nanofluids on natural convective instability and heat transfer characteristics of water-based Al2O3 nanoparticles in a rectangular cavity heated from below are theoretically analyzed.
350 citations