CFD simulations of particle laden flows: Particle transport and separation
Title | CFD simulations of particle laden flows: Particle transport and separation PDF eBook |
Author | David Schellander |
Publisher | Anchor Academic Publishing (aap_verlag) |
Pages | 152 |
Release | 2014-02-01 |
Genre | Science |
ISBN | 3954896710 |
This study presents the basic models for discrete and continuous particle laden flow simulation. An overview of the two main approaches, the Lagrangian discrete particle model and the Eulerian granular phase model is given. Moreover these two approaches are combined to a hybrid model to use the benefits of the discrete and continuous description. This safes computational time and increase the efficiency of particle laden flow simulations. Furthermore the models are extended to poly-disperse particles including a simple agglomeration model based on a population balance equation. Finally the usability of the models is shown at a pneumatic particle transport system including particle strand building and the separation of particles using an industrial cyclone.
Hybrid Particle Laden Flow Modelling
Title | Hybrid Particle Laden Flow Modelling PDF eBook |
Author | David Schellander |
Publisher | GRIN Verlag |
Pages | 155 |
Release | 2013-09-20 |
Genre | Technology & Engineering |
ISBN | 3656501920 |
Doctoral Thesis / Dissertation from the year 2013 in the subject Engineering - Mechanical Engineering, grade: 1, University of Linz (Department on Particulate Flow Modelling), language: English, abstract: The numerical hybrid model EUgran+, which is an Eulerian-Eulerian granular phase model extended with models from the Eulerian-Lagrangian model for dense rapid particulate flows, is modified to account for poly-dispersed particle diameter distributions. These modifications include the implementation of I) a new poly-dispersed drag law and of II) new particle boundary conditions distinguishing between sliding and non-sliding particle-wall collisions and III) a new implementation of the population balance equation in the agglomeration model using the Eulerian-Lagrangian approach, referred to as Bus-stop model. Further, the applicability of the EUgran+ model is extended to cover dilute to dense poly-disperse particulate flows. Furthermore, this provides an improvement in the numerical simulation of dust separation and the formation of particle strands in industrial scale cyclones. In this PHD thesis, the EUgran+Poly model is validated at 3 specific cases with different mass loadings: I) poly-dispersed particle conveying in a square pipe with a 90 degree bend at low mass loading (L = 0:00206); II) a particle conveying case in a rectangular pipe with a double-loop at high mass loading (L = 1:5); III) in a vertical pipe the implementation of the agglomeration model is validated. To show the applicability of the presented models a simulation of an industrial cyclone in experimental scale is presented. The validation and application shows that considering a poly-disperse Eulerian-Eulerian granular phase improves the accordance of the simulation results with measurements significantly. Finally, the hybrid model is a good compromise for a computational efficient simulation of particulate transport and separation with different mass loading regimes.
Multiphase CFD Modeling in Particle-laden Flows
Title | Multiphase CFD Modeling in Particle-laden Flows PDF eBook |
Author | Zhizhong Ding |
Publisher | |
Pages | |
Release | 2019 |
Genre | |
ISBN |
Particle-laden Flows
Title | Particle-laden Flows PDF eBook |
Author | Fiorenzo Ambrosino |
Publisher | |
Pages | 0 |
Release | 2012-10-17 |
Genre | |
ISBN | 9783659245831 |
Laboratory Unit Operations and Experimental Methods in Chemical Engineering
Title | Laboratory Unit Operations and Experimental Methods in Chemical Engineering PDF eBook |
Author | Omar M. Basha |
Publisher | BoD – Books on Demand |
Pages | 185 |
Release | 2018-10-10 |
Genre | Science |
ISBN | 1789840554 |
This book covers a wide variety of topics related to the application of experimental methods, in addition to the pedagogy of chemical engineering laboratory unit operations. The purpose of this book is to create a platform for the exchange of different experimental techniques, approaches and lessons, in addition to new ideas and strategies in teaching laboratory unit operations to undergraduate chemical engineering students. It is recommended for instructors and students of chemical engineering and natural sciences who are interested in reading about different experimental setups and techniques, covering a wide range of scales, which can be widely applied to many areas of chemical engineering interest.
Simulations of Particle-laden Flows
Title | Simulations of Particle-laden Flows PDF eBook |
Author | Dazhi Guo |
Publisher | |
Pages | 160 |
Release | 2002 |
Genre | |
ISBN |
Multiphase Flow Analysis Using Population Balance Modeling
Title | Multiphase Flow Analysis Using Population Balance Modeling PDF eBook |
Author | Guan Heng Yeoh |
Publisher | Butterworth-Heinemann |
Pages | 385 |
Release | 2013-08-19 |
Genre | Science |
ISBN | 0080982336 |
Written by leading multiphase flow and CFD experts, this book enables engineers and researchers to understand the use of PBM and CFD frameworks. Population balance approaches can now be used in conjunction with CFD, effectively driving more efficient and effective multiphase flow processes. Engineers familiar with standard CFD software, including ANSYS-CFX and ANSYS–Fluent, will be able to use the tools and approaches presented in this book in the effective research, modeling and control of multiphase flow problems. - Builds a complete understanding of the theory behind the application of population balance models and an appreciation of the scale-up of computational fluid dynamics (CFD) and population balance modeling (PBM) to a variety of engineering and industry applications in chemical, pharmaceutical, energy and petrochemical sectors - The tools in this book provide the opportunity to incorporate more accurate models in the design of chemical and particulate based multiphase processes - Enables readers to translate theory to practical use with CFD software