Here we summarize our efforts within the “NanoSim” project (www.sintef.no/projectweb/nanosim) that aim on quantifying the relative importance of these phenomena in CLR applications. This project established a simulation platform for online and off-line coupling, spanning (i) intra-particle simulators , (ii) Computational Fluid Dynamics (CFD) models in various flavors [4,5], (iii) particle flow simulators , as well as (iv) phenomenological models . We present a new generation of closure models for both particle- and cluster scale phenomena that enable significantly more reliable simulations of reactive fluidized beds. Another key result of our project is the open-source co-simulation simulation platform “COSI”: this platform is not only useful for multiphysics co-simulation of industrial-scale reactive fluid-particle systems, but also for distilling generally-applicable closure laws to be used in traditional offline coupling. Closure law development is greatly accelerated with our tool “CPPPO” , which is highly scalable and flexible. A key conclusion of NanoSim is that already at the particle scale significant uncertainties are introduced. This is due to the nature of gas-particle flow, i.e., the spontaneous formation of heterogeneities that strongly impact flow and species transport.
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J. Francisco Morgado, S. Cloete, J. Morud, T. Gurker, S. Amini, Modelling study of two chemical looping reforming reactor configurations: looping vs. switching, Powder Technol. 316 (2017) 599–613.
S. Radl, T. Forgber, A. Aigner, C. Kloss, ParScale - An Open-Source Library for the Simulation of Intra-Particle Heat and Mass Transport Processes in Coupled Simulations, in: E. Onate, M. Bischoff, D.R.J. Owen, P. Wriggers, T. Zhodi (Eds.), IV Int. Conf. Part. Methods – Fundam. Appl. (PARTICLES 2015), ECCOMAS, Barcelona, Spain, 2015: pp. 1–9.
J.H. Cloete, S. Cloete, F. Municchi, S. Radl, S. Amini, The sensitivity of filtered Two Fluid Model to the underlying resolved simulation setup, Powder Technol. 316 (2017) 265–277.
F. Municchi, S. Radl, Consistent closures for Euler-Lagrange models of bi-disperse gas-particle suspensions derived from particle-resolved direct numerical simulations, Int. J. Heat Mass Transf. 111 (2017) 171–190.
A. Hager, C. Kloss, S. Pirker, C. Goniva, Parallel Resolved Open Source CFD-DEM: Method, Validation and Application, J. Comput. Multiph. Flows. 6 (2014) 13–28.
F. Municchi, C. Goniva, S. Radl, Highly efficient spatial data filtering in parallel using the opensource library CPPPO, Comput. Phys. Commun. 207 (2016) 400–414.
|Journal||Computer aided chemical engineering|
|Publication status||Published - 1 Jun 2018|
|Event||ESCAPE28: 28th European Symposium on Computer Aided Process Engineering - Congress Graz, Graz, Austria|
Duration: 10 Jun 2018 → 13 Jun 2018
Conference number: EFCE Event 745
- fluidized beds
- multi-scale modeling