Applications of mathematical heat transfer and fluid flow by Abram S. Dorfman

By Abram S. Dorfman

Applications of mathematical warmth move and fluid stream versions in engineering and medicine

Abram S. Dorfman, collage of Michigan, USA

 

Engineering and scientific functions of state-of-the-art warmth and movement models

 

This publication provides cutting edge effective tools in fluid circulate and warmth move built and accepted during the last fifty years. The research is targeted on mathematical types that are a necessary a part of any learn attempt as they exhibit the validity of the consequences obtained.

The universality of arithmetic permits attention of engineering and organic difficulties from one perspective utilizing comparable types. during this e-book, the present state of affairs of purposes of contemporary mathematical versions is printed in 3 elements. half I deals extensive insurance of the functions of up to date conjugate warmth move versions in a number of business and technological techniques, from aerospace  and nuclear reactors to drying and foodstuff processing. partially II the idea and alertness of 2 lately constructed types in fluid movement are thought of: the same conjugate version for simulation of organic structures, together with flows in human organs, and functions of the newest advancements in turbulence simulation by way of direct resolution of Navier-Stokes equations, together with flows round plane. half III proposes basics of laminar and turbulent flows and utilized arithmetic equipment. The dialogue is complimented by way of 365 examples chosen from a listing of 448 brought up papers, 239 routines and 136 commentaries.

 

Key features:

  • Peristaltic flows in basic and pathologic human organs.
  • Modeling flows round plane at excessive Reynolds numbers.
  • Special mathematical routines permit the reader to accomplish expressions derivation following instructions from the text.
  • Procedure for initial selection among conjugate and customary easy tools for specific challenge solutions.
  • Criterions of conjugation, definition of semi-conjugate solutions.

 

This e-book is a perfect reference for graduate and post-graduate scholars and engineers.

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Additional resources for Applications of mathematical heat transfer and fluid flow models in engineering and medicine

Example text

40) may be estimated by any of known methods reviewed, for example, in [369]. These methods are well tested during many years when the isothermal heat transfer coefficient was used for practical calculations, in particular, as a part of the boundary conditions of the third kind. 39) provides practically accurate approximate results for arbitrary external flow velocity distribution. 1 and then decreases to zero in both limiting cases of Prandtl number at Pr → 0 and Pr → ∞. 39) in general case of arbitrary external flow (or pressure gradient) with average values of coefficients gk provides the calculation results with inaccuracy less than ±12% which is comparable with accuracy of other existing approximate methods (S.

Thus, the situation is deficient: to solve a particular conjugate problem we need boundary conditions for each subdomain, which may be obtained only after solution of the same conjugate problem. There are several methods for resolving this challenging problem. Here, we consider two mostly used numerical methods and analytical approach based on employing so called universal functions [120]. Examples of other procedures for solving this problem are discussed in applications. 1 Numerical Methods One relatively simple way to realize conjugation is to apply the iterations.

However, determining this function is another difficult task. For some simple cases, when the influence function depends on ratio ????∕x instead of each of those variables, an influence function was obtained using approximate methods. For the simplest case of laminar flow, Prandtl number close to one, and zero pressure gradient, the influence function was found by integral method (S. 6) in the form [123, 201] (Exam. 24) The more general result for the laminar gradient flow, the influence function was obtained for self-similar flows with power-law velocities U = Cxm (S.

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