1
|
Hu S, Liu X. 3D CFD-PBM simulation of gas-solid bubbling beds of Geldart A particles with sub-grid drag correction. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
|
2
|
Rocha DC, Lage PL. Modeling the reactive flow of semi-continuous mixtures by the adaptive characterization method. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
3
|
Bilde KG, Hærvig J, Lehnigk R, Schlegel F, Sørensen K. On the agglomeration and breakage of particles in turbulent flows through pipe bends using CFD-PBE. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
4
|
Charalampopoulos A, Bryngelson SH, Colonius T, Sapsis TP. Hybrid quadrature moment method for accurate and stable representation of non-Gaussian processes applied to bubble dynamics. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2022; 380:20210209. [PMID: 35719067 DOI: 10.1098/rsta.2021.0209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 01/07/2022] [Indexed: 06/15/2023]
Abstract
Solving the population balance equation (PBE) for the dynamics of a dispersed phase coupled to a continuous fluid is expensive. Still, one can reduce the cost by representing the evolving particle density function in terms of its moments. In particular, quadrature-based moment methods (QBMMs) invert these moments with a quadrature rule, approximating the required statistics. QBMMs have been shown to accurately model sprays and soot with a relatively compact set of moments. However, significantly non-Gaussian processes such as bubble dynamics lead to numerical instabilities when extending their moment sets accordingly. We solve this problem by training a recurrent neural network (RNN) that adjusts the QBMM quadrature to evaluate unclosed moments with higher accuracy. The proposed method is tested on a simple model of bubbles oscillating in response to a temporally fluctuating pressure field. The approach decreases model-form error by a factor of 10 when compared with traditional QBMMs. It is both numerically stable and computationally efficient since it does not expand the baseline moment set. Additional quadrature points are also assessed, optimally placed and weighted according to an additional RNN. These points further decrease the error at low cost since the moment set is again unchanged. This article is part of the theme issue 'Data-driven prediction in dynamical systems'.
Collapse
Affiliation(s)
- A Charalampopoulos
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - S H Bryngelson
- School of Computational Science and Engineering, Georgia Institute of Technology, GA 30313, USA
| | - T Colonius
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125, USA
| | - T P Sapsis
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| |
Collapse
|
5
|
Lehnigk R, Bainbridge W, Liao Y, Lucas D, Niemi T, Peltola J, Schlegel F. An open‐source population balance modeling framework for the simulation of polydisperse multiphase flows. AIChE J 2021. [DOI: 10.1002/aic.17539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Yixiang Liao
- Helmholtz‐Zentrum Dresden – Rossendorf Dresden Germany
| | - Dirk Lucas
- Helmholtz‐Zentrum Dresden – Rossendorf Dresden Germany
| | - Timo Niemi
- VTT Technical Research Center Ltd Espoo Finland
| | | | | |
Collapse
|
6
|
Shen X, Lin M, Zhu Y, Ha HK, Fettweis M, Hou T, Toorman EA, Maa JPY, Zhang J. A quasi-Monte Carlo based flocculation model for fine-grained cohesive sediments in aquatic environments. WATER RESEARCH 2021; 194:116953. [PMID: 33657494 DOI: 10.1016/j.watres.2021.116953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
The quasi-Monte Carlo (QMC) method was enhanced to solve the population balance model (PBM) including aggregation and fragmentation processes for simulating the temporal evolutions of characteristic sizes and floc size distributions (FSDs) of cohesive sediments. Ideal cases with analytical solutions were firstly adopted to validate this QMC model to illustrate selected pure aggregation, pure fragmentation, and combined aggregation and fragmentation systems. Two available laboratory data sets, one with suspended kaolinite and the other with a mixture of kaolinite and montmorillonite, were further used to monitor the FSDs of cohesive sediments in controlled shear conditions. The model results show reasonable agreements with both analytical solutions and laboratory experiments. Moreover, different QMC schemes were tested and compared with the standard Monte Carlo scheme and a Latin Hypercube Sampling scheme to optimize the model performance. It shows that all QMC schemes perform better in both accuracy and time consumption than standard Monte Carlo scheme. In particular, compared with other schemes, the QMC scheme using Halton sequence requires the least particle numbers in the simulated system to reach reasonable accuracy. In the sensitivity tests, we also show that the fractal dimension and the fragmentation distribution function have large impacts on the predicted FSDs. This study indicates a great advance in employing QMC schemes to solve PBM for simulating the flocculation of cohesive sediments.
Collapse
Affiliation(s)
- Xiaoteng Shen
- Key Laboratory of Ministry of Education for Coastal Disaster and Protection, Hohai University, Nanjing 210098, China; College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China; Engineering Research Center of Ministry of Education for Dredging Technology, Hohai University, Nanjing 210098, China
| | - Mingze Lin
- College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
| | - Yuliang Zhu
- Key Laboratory of Ministry of Education for Coastal Disaster and Protection, Hohai University, Nanjing 210098, China; College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China; Engineering Research Center of Ministry of Education for Dredging Technology, Hohai University, Nanjing 210098, China.
| | - Ho Kyung Ha
- Department of Ocean Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Michael Fettweis
- Operational Directorate Natural Environment, Royal Belgian Institute of Natural Sciences, Rue Vautier 29, 1000 Brussels, Belgium
| | - Tianfeng Hou
- Prediction Science Laboratory, RIKEN Cluster for Pioneering Research, Kobe, Japan; Data Assimilation Research Team, RIKEN Center for Computational Science, Kobe, Japan; RIKEN iTHEMS, Wako, Saitama 351-0198, Japan
| | - Erik A Toorman
- Hydraulics Laboratory, Department of Civil Engineering, KU Leuven, Kasteelpark Arenberg 40, B-3001 Leuven, Belgium
| | - Jerome P-Y Maa
- Virginia Institute of Marine Science, College of William & Mary, Gloucester Point, VA 23062, United States
| | - Jinfeng Zhang
- State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
| |
Collapse
|
7
|
Parameter Estimation of the Stochastic Primary Nucleation Kinetics by Stochastic Integrals Using Focused-Beam Reflectance Measurements. CRYSTALS 2020. [DOI: 10.3390/cryst10050380] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The kinetic parameters of stochastic primary nucleation were estimated for the batch-cooling crystallization of L-arginine. It is difficult for process analytical tools to detect the first nucleus. In this study, the latent period for the total number of crystals to be increased to a predetermined threshold was repeatedly measured with focused-beam reflectance measurements. Consequently, the latent periods were different in each measurement due to the stochastic behavior of both primary and secondary nucleation. Therefore, at first, the distribution of the latent periods was estimated by a Monte Carlo simulation for some combinations of the kinetic parameters of primary nucleation. In the simulation, stochastic integrals of the population and mass balance equations were solved. Then, the parameters of the distribution of latent periods were estimated and correlated with the kinetic parameters of primary nucleation. The resulting correlation was represented by a mapping. Finally, the parameters of the actual distribution were input into the inverse mapping, and the kinetic parameters were estimated as the outputs. The estimated kinetic parameters were validated using statistical techniques, which implied that the observed distribution function of the latent periods for the thresholds used in the estimation coincided reasonably with the simulated one based on the estimated parameters.
Collapse
|
8
|
|
9
|
A CFD-sectional algorithm for population balance equation coupled with multi-dimensional flow dynamics. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2019.11.084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
10
|
Khajehesamedini A, Miranda DMV, Tavares F, Nele M, Pinto JC. Development of Coalescence and Capture Kernels for the Electrocoalescence Process Based on Batch Experiments. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b04165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ali Khajehesamedini
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, CP: 68502, Rio de Janeiro, 21941-972 RJ, Brazil
| | - Débora M. V. Miranda
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, CP: 68502, Rio de Janeiro, 21941-972 RJ, Brazil
| | - Frederico Tavares
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, CP: 68502, Rio de Janeiro, 21941-972 RJ, Brazil
| | - Márcio Nele
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, CP: 68502, Rio de Janeiro, 21941-972 RJ, Brazil
| | - José Carlos Pinto
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, CP: 68502, Rio de Janeiro, 21941-972 RJ, Brazil
| |
Collapse
|
11
|
Peng C, Kong B, Zhou J, Sun B, Passalacqua A, Subramaniam S, Fox R. Implementation of pseudo-turbulence closures in an Eulerian–Eulerian two-fluid model for non-isothermal gas–solid flow. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.06.054] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
12
|
De Giorgi MG, Fontanarosa D, Ficarella A. CFD data of unsteady cavitation around a hydrofoil, based on an extended Schnerr-Sauer model coupled with a nucleation model. Data Brief 2019; 25:104226. [PMID: 31497625 PMCID: PMC6718806 DOI: 10.1016/j.dib.2019.104226] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/17/2019] [Accepted: 06/28/2019] [Indexed: 11/25/2022] Open
Abstract
The data presented in this article were the basis for the study reported in the research articles entitled “Characterization of unsteady cavitating flow regimes around a hydrofoil, based on an extended Schnerr-Sauer model coupled with a nucleation model” (De Giorgi et al., 2018)[1]. The reference study presented a spatio-temporal characterization of different cavitating flow regimes using Computational Fluid Dynamics (CFD). The authors evaluated the accuracy of an extended Schnerr-Sauer cavitation model. The accuracy of the numerical model has been improved by means of the introduction of a Density Correction Model of the turbulent viscosity, and a simplified Population Balance Modeling (PBM).
Collapse
Affiliation(s)
| | - Donato Fontanarosa
- Dipartimento di Ingegneria dell'Innovazione, Università del Salento, Italy
| | - Antonio Ficarella
- Dipartimento di Ingegneria dell'Innovazione, Università del Salento, Italy
| |
Collapse
|
13
|
Askari E, St‐Pierre Lemieux G, Proulx P. Application of extended quadrature method of moments for simulation of bubbly flow and mass transfer in gas‐liquid stirred tanks. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23470] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ehsan Askari
- Chemical Engineering DepartmentSherbrooke University Sherbrooke QC Canada
| | | | - Pierre Proulx
- Chemical Engineering DepartmentSherbrooke University Sherbrooke QC Canada
| |
Collapse
|
14
|
|
15
|
Koppejan V, Ferreira G, Lin D, Ottens M. Mathematical modelling of expanded bed adsorption - a perspective on in silico process design. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (OXFORD, OXFORDSHIRE : 1986) 2018; 93:1815-1826. [PMID: 30008502 PMCID: PMC6032964 DOI: 10.1002/jctb.5595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 01/22/2018] [Accepted: 01/24/2018] [Indexed: 06/08/2023]
Abstract
Expanded bed adsorption (EBA) emerged in the early 1990s in an attempt to integrate the clarification, capture and initial product concentration/purification process. Several mathematical models have been put forward to describe its operation. However, none of the models developed specifically for EBA allows simultaneous prediction of bed hydrodynamics, mass transfer/adsorption and (unwanted) interactions and fouling. This currently limits the development and early optimization of EBA-based separation processes. In multiphase reactor engineering, the use of multiphase computational fluid dynamics has been shown to improve fundamental understanding of fluidized beds. To advance EBA technology, a combination of particle, equipment and process scale models should be used. By employing a cascade of multiscale simulations, the various challenges EBA currently faces can be addressed. This allows for optimal design and selection of equipment, materials and process conditions, and reduces risks and development times of downstream processes involving EBA. © 2018 The Authors. Journal of Chemical Technology & Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
Collapse
Affiliation(s)
- Victor Koppejan
- Delft University of TechnologyDepartment of Biotechnology, Van der Maasweg 9, 2629 HZDelftThe Netherlands
| | - Guilherme Ferreira
- DSM Biotechnology CenterCenter of Integrated BioProcessing, Alexander Fleminglaan 12613AXDelftThe Netherlands
| | - Dong‐Qiang Lin
- College of Chemical and Biological EngineeringZhejiang UniversityHangzhouChina
| | - Marcel Ottens
- Delft University of TechnologyDepartment of Biotechnology, Van der Maasweg 9, 2629 HZDelftThe Netherlands
| |
Collapse
|