Get Computational Flow Modeling for Chemical Reactor Engineering PDF

By Vivek V. Ranade

ISBN-10: 0125769601

ISBN-13: 9780125769600

ISBN-10: 0585470952

ISBN-13: 9780585470955

This e-book describes how modeling fluid circulation in chemical reactors may well provide ideas that enhance layout, operation, and function of reactors. Chemical reactors are any vessels, tubes, pipes, or tanks during which chemical reactions occur. Computational circulation Modeling for Chemical Reactor Engineering will express the reactor engineer how to find the explicit roles of computational circulate modeling, choose acceptable instruments, and follow those instruments to hyperlink reactor to reactor functionality. total technique is illustrated with various case reviews. has invested large cash in computational stream modeling so as to repay provided that it may be used to gain major functionality enhancement in chemical reactors. No different unmarried resource exists which gives the data contained during this publication.

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Extra info for Computational Flow Modeling for Chemical Reactor Engineering

Sample text

Before we discuss applications to reactor engineering, various aspects of CFD and computational flow modeling (CFM) are introduced in this section. CFD deals with the solution of fluid dynamic equations on digital computers and the related use of digital computers in fluid dynamic research. CFD requires relatively few restrictive assumptions and gives a complete description of the flow field for all variables. Quite complex configurations can be treated and the methods are relatively easy to apply.

Details of the derivation of momentum transport equations may be obtained from such textbooks as Bird et al. (1960), Brodkey and Hershey (1988) or Deen (1998). 5) In these equations, n is the molecular flux of momentum and g and F are gravitational acceleration and external body forces, respectively. The physical interpretation of the various terms appearing in these equations again follows similar lines: the first term is the rate of increase in momentum per unit volume; the second term represents BASIC GOVERNING EQUATIONS 39 change in momentum per unit volume, caused by convection; the fourth and fifth terms represent the gravitational force per unit volume and any other external force, if present, respectively.

For example, unsteady flows may be either forced unsteady, like a flow generated by a rotating impeller, or inherently COMPUTATIONAL FLOW MODELING (CFM) FIGURE I. I I 2I Typical flow modeling project. unsteady, like vortex shedding behind a bluff body. Multiphase flows cover a very wide range of flows and have several sub-types depending on the nature of the phases (see for example, Fig. 9). 1. Each of these different types of flows is governed by a set of equations having special features. It is essential to understand these features to select an appropriate numerical method for each of these types of equations.

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Computational Flow Modeling for Chemical Reactor Engineering by Vivek V. Ranade

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