Coupled CFD-DEM modeling : formulation, implementation and by Hamid Reza Norouzi, Reza Zarghami, Rahmat Sotudeh-Gharebagh,

Chemical Engineering

By Hamid Reza Norouzi, Reza Zarghami, Rahmat Sotudeh-Gharebagh, Navid Mostoufi

Discusses the CFD-DEM approach to modeling which mixes either the Discrete aspect procedure and  Computational Fluid Dynamics to simulate fluid-particle interactions.

  • Deals with either theoretical and functional strategies of CFD-DEM, its numerical implementation followed by means of a hands-on numerical code in FORTRAN
  • Gives examples of business applications

Show description

Read Online or Download Coupled CFD-DEM modeling : formulation, implementation and applications to multiphase flows PDF

Best chemical engineering books

Putting Biotechnology to Work: Bioprocess Engineering

The facility of the USA to maintain a dominant worldwide place in biotechnology lies in protecting its primacy in simple life-science learn and constructing a robust source base for bioprocess engineering and bioproduct production. This booklet examines the prestige of bioprocessing and biotechnology within the usa; present bioprocess know-how, items, and possibilities; and demanding situations of the long run and what has to be performed to fulfill these demanding situations.

New Directions in Bioprocess Modeling and Control: Maximizing Process Analytical Technology Benefits

Versions provide advantages even earlier than they're wear line. according to years of expertise, the authors demonstrate in New instructions in Bioprocess Modeling and keep watch over that major advancements may result from the method wisdom and perception which are received whilst development experimental and first-principle versions for technique tracking and keep an eye on.

Mullite

The one e-book to supply a whole survey -- from the crystallographic basics correct as much as fresh high-tech functions in aerospace expertise. Following a common advent to the subject, the authors pass directly to conceal the crystal chemistry of mullite and similar stages, in addition to its easy houses, section equilibria and balance.

Extra info for Coupled CFD-DEM modeling : formulation, implementation and applications to multiphase flows

Example text

However, Weber et al. [16] and Weber and Hrenya [17] introduced the square‐well method to handle granular flows with interparticle cohesive forces in the hard‐sphere formulation. We introduce this methodology here to give a good picture to the reader of how this formulation can be further extended to a similar system in which ­interparticle forces play a key role. For example, dilute phase electrification of gas‐particle flow in pneumatic conveying of particles [18] can be modeled by event‐based/hard‐sphere DEM.

The dashed curve shows the limit imposed by the Coulomb’s law. The dotted curve is the tangential force without friction and the solid curve corresponds to actual tangential force during the collision. In the first collision regime, which occurs at small collision angles, the condition ψ imp ≤ 1 is held. The second regime occurs for 1 < ψ imp ≤ 7κ − 1 and the third regime for ψ imp > 7κ − 1. 6a shows the tangential force during the oblique collision with θimp = 5°. 24 that is less than 1 and we are in the first regime in which the normal component of relative velocity is much larger than its tangential component.

4 Thus, in the absence of continuous fluid or where the fluid effects are not important, this term is assumed to be zero. The fluid–particle interaction forces will be discussed in detail in Chapter 6. The third term represents all external forces acting on particle i due to ­uniform or non‐uniform external fields. For example, we can name the gravitational force due to existence of the uniform gravitational field of earth or the force acting on a magnetic particle in an electromagnetic field. 24a.

Download PDF sample

Rated 4.83 of 5 – based on 25 votes