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Showing papers by "Ephraim M Sparrow published in 1988"


Book
28 Mar 1988
TL;DR: In this article, a comprehensive presentation of numerical methods suitable for the analysis of various heat transverse and fluid flow problems that occur in research, practice, and university instruction is given.
Abstract: A comprehensive presentation is given of virtually all numerical methods that are suitable for the analysis of the various heat transverse and fluid flow problems that occur in research, practice, and university instruction. After reviewing basic methodologies, the following topics are covered: finite difference and finite element methods for parabolic, elliptic, and hyperbolic systems; a comparative appraisal of finite difference versus finite element methods; integral and integrodifferential systems; perturbation methods; Monte Carlo methods; finite analytic methods; moving boundary problems; inverse problems; graphical display methods; grid generation methods; and programing methods for supercomputers.

718 citations


Journal ArticleDOI
TL;DR: In this paper, it was shown that the Nusselt numbers for the convergent channels could be brought into very close agreement with those for the parallel-walled channel by employing correlation variables based on the maximum interwall spacing as the characteristic dimension.

32 citations


Journal ArticleDOI
TL;DR: In this article, the authors obtained definitive heat transfer data for natural convection in divergent vertical channels, and developed a universal Nusselt number correlation for divergent, convergent, and parallel-walled channels.

26 citations


Journal ArticleDOI
TL;DR: In this article, the authors investigated the effect of depression of the temperature at the liquid surface on the evaporation rate of a circular tube in both isothermal and non-isothermal conditions, and found that when radiative transfer was activated, the temperature depression diminished and the Sherwood number markedly increased.

18 citations


Journal ArticleDOI
TL;DR: In this article, the authors provide a critical test of analytical/numerical models for predicting evaporation from an open-topped vertical tube partially filled with a liquid, and the experimental results are supplemented by the numerical implementation using the ambient conditions of the experiments as input.

17 citations



Journal ArticleDOI
TL;DR: In this paper, steady state Nusselt number results were obtained for the one-sided-heated thermosyphon with parallel principal walls and divergent principal walls.

3 citations


Journal ArticleDOI
TL;DR: The fluid flow, mass transfer, and heat transfer associated with the evaporation of a liquid from a partially filled rectangular cavity have been modeled both rigorously and approximately and then evaluated numerically.
Abstract: The fluid flow, mass transfer, and heat transfer associated with the evaporation of a liquid from a partially filled rectangular cavity have been modeled both rigorously and approximately and then evaluated numerically. A uniform tangential velocity was prescribed at the top of the cavity, and the side and bottom walls of the cavity were adiabatic. All of the numerical results were for the evaporation of water into an air ambient having various degrees of humidity. The modeling studies demonstrated that results of high accuracy for the evaporation rate and for the temperature at the gas-liquid interface could be obtained without having to solve the conservation equations for the liquid zone. The interface temperatures corresponding to convection-driven evaporation deviated only slightly from those for diffusion-driven evaporation ( i.e., no convection). Furthermore, the variation of the evaporation rate with the ambient temperature and relative humidity was found to be very similar for the convection-driv...

2 citations