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C. Prakash

Bio: C. Prakash is an academic researcher from University of Minnesota. The author has contributed to research in topics: Heat transfer coefficient & Rayleigh number. The author has an hindex of 2, co-authored 2 publications receiving 123 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, an analysis of the flow and heat transfer in an interrupted-plate passage, which is an idealization of the offset-fin heat exchanger, is presented, where the plates are considered to be of finite thickness.

102 citations

Journal ArticleDOI
TL;DR: In this article, a conjugate internal-external natural convection problem was solved numerically for Grashof numbers between 103 and 107 and for a Prandtl number of 0.7.

25 citations


Cited by
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Book
01 Jan 2005
TL;DR: This paper presents a meta-modelling framework for convection-Cartesian grids that automates and automates the very labor-intensive and therefore time-heavy and expensive process of convection itself.
Abstract: Introduction to Computational Fluid Dynamics is a textbook for advanced undergraduate and first year graduate students in mechanical, aerospace and chemical engineering. The book emphasizes understanding CFD through physical principles and examples. The author follows a consistent philosophy of control volume formulation of the fundamental laws of fluid motion and energy transfer, and introduces a novel notion of 'smoothing pressure correction' for solution of flow equations on collocated grids within the framework of the well-known SIMPLE algorithm. The subject matter is developed by considering pure conduction/diffusion, convective transport in 2-dimensional boundary layers and in fully elliptic flow situations and phase-change problems in succession. The book includes chapters on discretization of equations for transport of mass, momentum and energy on Cartesian, structured curvilinear and unstructured meshes, solution of discretised equations, numerical grid generation and convergence enhancement. Practising engineers will find this particularly useful for reference and for continuing education.

885 citations

Journal ArticleDOI
TL;DR: In this paper, the development of thermal-hydraulic design tools for rectangular offset strip fin compact heat exchangers and the associated convection process are delineated, and existing empirical f and j data for actual cores are reanalyzed.

480 citations

Book ChapterDOI
TL;DR: The chapter summarizes analytical, numerical, and experimental work in literature, in order to facilitate the improvement of existing schemes and provide a basis for the development of new ones on the thermal control of semiconductor devices, modules, and total systems.
Abstract: Publisher Summary Thermal control of electronic components has one principal objective, to maintain relatively constant component temperature equal to or below the manufacturer's maximum specified service temperature, typically between 85 and 100°C. It is noted that even a single component operating 10°C beyond this temperature can reduce the reliability of certain systems by as much as 50%. Therefore, it is important for the new thermal control schemes to be capable of eliminating hot spots within the electronic devices, removing heat from these devices and dissipating this heat to the surrounding environment. Several strategies have developed over the years for controlling and removing the heat generated in multichip modules, which include advanced air-cooling schemes, direct cooling, and miniature thermosyphons or free-falling liquid films. The chapter summarizes analytical, numerical, and experimental work in literature, in order to facilitate the improvement of existing schemes and provide a basis for the development of new ones. The chapter focuses on investigations performed over the past decade and includes information on the thermal control of semiconductor devices, modules, and total systems.

285 citations

Journal ArticleDOI
TL;DR: In this article, an analytical model was developed to predict the heat transfer coefficient and friction factor of offset strip-fin heat exchanger surface geometry. But the model was not applied to the LAMINAR and TURBORN flow regimes.

244 citations

Journal ArticleDOI
TL;DR: In this article, the effect of vortex shedding on heat transfer and frictional loss in a parallel plate fin heat exchanger was investigated by solving unsteady equations in two-dimensions.

103 citations