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Fluid computational

Computational Fluid Dynamics Applied to Process Engineering. [Pg.476]

This method has been devised as an effective numerical teclmique of computational fluid dynamics. The basic variables are the time-dependent probability distributions f x, f) of a velocity class a on a lattice site x. This probability distribution is then updated in discrete time steps using a detenninistic local rule. A carefiil choice of the lattice and the set of velocity vectors minimizes the effects of lattice anisotropy. This scheme has recently been applied to study the fomiation of lamellar phases in amphiphilic systems [92, 93]. [Pg.2383]

Taylor, C. and Hood, P., 1973. A numerical solution of the Navier-Stokes equations using the finite element technique. Comput. Fluids 1, 73-100. [Pg.69]

Hughes, T. J. R., Franca, L. P. and Balestra, M., 1986. A new finite-element formulation for computational fluid dynamics. 5. Circumventing the Babuska-Brezzi condition - a stable Petrov-Galerkin formulation of the Stokes problem accommodating equal order interpolations. Cornput. Methods Appl. Meek Eng. 59, 85-99. [Pg.109]

Although the Arrhenius equation does not predict rate constants without parameters obtained from another source, it does predict the temperature dependence of reaction rates. The Arrhenius parameters are often obtained from experimental kinetics results since these are an easy way to compare reaction kinetics. The Arrhenius equation is also often used to describe chemical kinetics in computational fluid dynamics programs for the purposes of designing chemical manufacturing equipment, such as flow reactors. Many computational predictions are based on computing the Arrhenius parameters. [Pg.164]

The simplest case of fluid modeling is the technique known as computational fluid dynamics. These calculations model the fluid as a continuum that has various properties of viscosity, Reynolds number, and so on. The flow of that fluid is then modeled by using numerical techniques, such as a finite element calculation, to determine the properties of the system as predicted by the Navier-Stokes equation. These techniques are generally the realm of the engineering community and will not be discussed further here. [Pg.302]

P. J. Roache, Computational Fluid Dynamics, Hermosa Pubhshers, Albuquerque, N.M., 1982. [Pg.112]

It has become quite popular to optimize the manifold design using computational fluid dynamic codes, ie, FID AP, Phoenix, Fluent, etc, which solve the full Navier-Stokes equations for Newtonian fluids. The effect of the area ratio, on the flow distribution has been studied numerically and the flow distribution was reported to improve with decreasing yiR. [Pg.497]

A numerical study of the effect of area ratio on the flow distribution in parallel flow manifolds used in a Hquid cooling module for electronic packaging demonstrate the useflilness of such a computational fluid dynamic code. The manifolds have rectangular headers and channels divided with thin baffles, as shown in Figure 12. Because the flow is laminar in small heat exchangers designed for electronic packaging or biochemical process, the inlet Reynolds numbers of 5, 50, and 250 were used for three different area ratio cases, ie, AR = 4, 8, and 16. [Pg.497]

Computer Models, The actual residence time for waste destmction can be quite different from the superficial value calculated by dividing the chamber volume by the volumetric flow rate. The large activation energies for chemical reaction, and the sensitivity of reaction rates to oxidant concentration, mean that the presence of cold spots or oxidant deficient zones render such subvolumes ineffective. Poor flow patterns, ie, dead zones and bypassing, can also contribute to loss of effective volume. The tools of computational fluid dynamics (qv) are useful in assessing the extent to which the actual profiles of velocity, temperature, and oxidant concentration deviate from the ideal (40). [Pg.57]

The Prandtl mixing length concept is useful for shear flows parallel to walls, but is inadequate for more general three-dimensional flows. A more complicated semiempirical model commonly used in numerical computations, and found in most commercial software for computational fluid dynamics (CFD see the following subsection), is the A — model described by Launder and Spaulding (Lectures in Mathematical Models of Turbulence, Academic, London, 1972). In this model the eddy viscosity is assumed proportional to the ratio /cVe. [Pg.672]

Computational fluid dynamics (CFD) emerged in the 1980s as a significant tool for fluid dynamics both in research and in practice, enabled by rapid development in computer hardware and software. Commercial CFD software is widely available. Computational fluid dynamics is the numerical solution of the equations or continuity and momentum (Navier-Stokes equations for incompressible Newtonian fluids) along with additional conseiwation equations for energy and material species in order to solve problems of nonisothermal flow, mixing, and chemical reaction. [Pg.673]

FIG. 6-56 Computational fluid dynamic simulation of flow over a square cylinder, showing one vortex shedding period. (From Choudliuty, et al., Trans. ASME Fluids Div, TN-076[1994].)... [Pg.674]

Relatively uncomphcated transparent tank studies with tracer fluids or particles can give a similar feel for the overall flow pattern. It is important that a careful balance be made between the time and expense of calculating these flow patterns with computational flirid dynamics compared to their apphcabihty to an actual industrial process. The future of computational fluid dynamics appears very encouraging and a reasonable amount of time and effort put forth in this regard can yield immediate results as well as potential (or future process evaluation. [Pg.1642]

Computation fluid mixing and computational fluid dynamic techniques have increasingly been used to elucidate solids distribution in agitated vessels [44],... [Pg.636]

Computational fluid dynamies (CFD) is an effeetive tool in analyzing the veloeity distribution and other pertinent parameters in a statie mixer. CFD is also being reeognized as an effeetive tool in enhaneing the performanee of mixers and reaetors, whieh is reviewed in Chapter 10. [Pg.747]

Application of Computational Fluid Dynamics and Computational Fluid Mixing in Reactors... [Pg.783]

Computational fluid dynamics (CFD) is the analysis of systems involving fluid flow, energy transfer, and associated phenomena such as combustion and chemical reactions by means of computer-based simulation. CFD codes numerically solve the mass-continuity equation over a specific domain set by the user. The technique is very powerful and covers a wide range of industrial applications. Examples in the field of chemical engineering are ... [Pg.783]

Blend time and ehemieal produet distribution in turbulent agitated vessels ean be predieted with the aid of Computational Fluid Mixing... [Pg.794]

The objeetive of the following model is to investigate the extent to whieh Computational Fluid Mixing (CFM) models ean be used as a tool in the design of industrial reaetors. The eommereially available program. Fluent , is used to ealeulate the flow pattern and the transport and reaetion of ehemieal speeies in stirred tanks. The blend time predietions are eompared with a literature eonelation for blend time. The produet distribution for a pair of eompeting ehemieal reaetions is eompared with experimental data from the literature. [Pg.795]


See other pages where Fluid computational is mentioned: [Pg.287]    [Pg.57]    [Pg.101]    [Pg.112]    [Pg.496]    [Pg.302]    [Pg.513]    [Pg.384]    [Pg.628]    [Pg.668]    [Pg.673]    [Pg.673]    [Pg.673]    [Pg.1229]    [Pg.1620]    [Pg.1642]    [Pg.80]    [Pg.232]    [Pg.566]    [Pg.609]    [Pg.785]    [Pg.786]    [Pg.787]    [Pg.789]    [Pg.791]    [Pg.793]    [Pg.795]    [Pg.797]    [Pg.799]   


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Advanced computational fluid dynamics (CFD)-based models

Basic Finite Volume Algorithms Used in Computational Fluid Dynamics

Bioreactor computational fluid dynamics models

Bubble columns computational fluid dynamics

Chemically reactive flows, computational fluid

Chemically reactive flows, computational fluid dynamics

Coating processes, computational fluid

Cold computational fluid dynamics

Combustion, computational fluid dynamics

Combustion, computational fluid dynamics model

Complex flow patterns computational fluid dynamics

Computation fluid dynamics

Computational Fluid Dynamics Modeling Structured Segregated Approach (Euler-Lagrange)

Computational Fluid Dynamics Modeling of Coal Gasifiers

Computational Fluid Dynamics for Polymerization Reactors

Computational Fluid Dynamics in Industrial Ventilation

Computational Fluid Dynamics technique

Computational fluid dynamic (CFD) model

Computational fluid dynamic flow model

Computational fluid dynamic heat transfer

Computational fluid dynamic multiphase flows

Computational fluid dynamic turbulence

Computational fluid dynamics

Computational fluid dynamics (CFD

Computational fluid dynamics , uses

Computational fluid dynamics 4781 Subject

Computational fluid dynamics Conductivity model

Computational fluid dynamics FLUENT

Computational fluid dynamics advantage

Computational fluid dynamics algorithm

Computational fluid dynamics analysis

Computational fluid dynamics applications

Computational fluid dynamics applications, examples

Computational fluid dynamics based models

Computational fluid dynamics boundary condition

Computational fluid dynamics bubble size

Computational fluid dynamics calculation domain

Computational fluid dynamics calculations

Computational fluid dynamics case studies

Computational fluid dynamics codes

Computational fluid dynamics complex rheology

Computational fluid dynamics concentration profiles

Computational fluid dynamics configuration

Computational fluid dynamics conservation equations

Computational fluid dynamics correlative

Computational fluid dynamics defined

Computational fluid dynamics emissions modeling using

Computational fluid dynamics evolution

Computational fluid dynamics experimental validation

Computational fluid dynamics field

Computational fluid dynamics geometric modeling

Computational fluid dynamics history

Computational fluid dynamics imaging

Computational fluid dynamics issues

Computational fluid dynamics laminar flows

Computational fluid dynamics mass balance

Computational fluid dynamics materials processing modeling using

Computational fluid dynamics membrane modules

Computational fluid dynamics membrane reactor

Computational fluid dynamics method

Computational fluid dynamics methodology

Computational fluid dynamics model

Computational fluid dynamics model definition

Computational fluid dynamics modeling using

Computational fluid dynamics modelling

Computational fluid dynamics multiphase systems

Computational fluid dynamics multiscale

Computational fluid dynamics multiscale modeling

Computational fluid dynamics numerical methodology

Computational fluid dynamics numerical techniques

Computational fluid dynamics packages

Computational fluid dynamics particle

Computational fluid dynamics particle tracking

Computational fluid dynamics physical boundary conditions

Computational fluid dynamics plate

Computational fluid dynamics predictions using

Computational fluid dynamics profile

Computational fluid dynamics purpose

Computational fluid dynamics reactor modeling using

Computational fluid dynamics realizability

Computational fluid dynamics residence time distributions

Computational fluid dynamics simplification

Computational fluid dynamics simulation

Computational fluid dynamics single-phase systems

Computational fluid dynamics software

Computational fluid dynamics stirred tank flow

Computational fluid dynamics technology

Computational fluid dynamics temperature profiles

Computational fluid dynamics theory

Computational fluid dynamics transport equations

Computational fluid dynamics turbulence modeling

Computational fluid dynamics turbulent flows

Computational fluid dynamics using

Computational fluid dynamics viscoelastic flow

Computational fluid dynamics wall boundary conditions

Computational fluid dynamics, mixing

Computational fluid evaluation

Computational fluid mechanics

Computational fluid mechanics separation

Computational fluid mixing

Computational viscoelastic fluid

Computer simulations adsorbed fluids

Computer simulations fluid property calculations

Computer simulations, solid-fluid equilibrium

Conclusions of the Computational Fluid Dynamics Study

Distillation computation fluid dynamics

Drying computation fluid dynamics

Engine diagnostics and computational fluid dynamics

Extrusions, computational fluid dynamics

Flow Modelling using Computational Fluid Dynamics

Flow modeling, computational fluid dynamics

Fluid computing thermodynamic

Fluidization, computation fluid dynamics

Forming, computation fluid dynamics

Heat transfer computation fluid dynamics

Impellers computational fluid dynamics

Large Eddy Simulation computational fluid dynamics model

Laser-Doppler Velocimetry and Computational Fluid Dynamics

Mass transfer computation fluid dynamics

Materials processing, computation fluid

Materials processing, computation fluid dynamics modeling

Measurement computation fluid dynamics

Methods of Computational Fluid Dynamics

Micro-PDF Moment Methods Computational Fluid Dynamics

Microstructured computational fluid dynamics

Mixing process computation fluid dynamics

Modeling computational fluid dynamics

Molds, computational fluid dynamics

Multiphase computational fluid dynamics

Partial differential equations computational fluid mechanics

Polymerization computation fluid dynamics

Pure fluid-phase equilibrium, computation

Reaction, computation fluid dynamics

Reactors via Computational fluid dynamics

Related Field (I) Fundamentals of Computational Fluid Dynamics

Reynolds averaged Navier-Stokes computational fluid dynamics model

Separation computation fluid dynamics modeling

Slurry reactors, computational fluid dynamics

Solver, Computational fluid dynamics

Some Computational fluid dynamics Application Examples

Three-phase fluidized beds, computational fluid

Tomography, computational fluid dynamics

Trajectories, computational fluid dynamics

Two-Phase Flow Models and Computational Fluid Dynamics

Ventilation computation fluid dynamics

Why Computational Fluid Dynamics

Windings, computational fluid dynamics

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