Conditional moment methods for polydisperse cavitating flows
dc.contributor.author | Bryngelson, Spencer H. | |
dc.contributor.author | Fox, Rodney | |
dc.contributor.author | Colonius, Tim | |
dc.contributor.department | Department of Chemical and Biological Engineering | |
dc.contributor.other | Center for Multiphase Flow Research and Education | |
dc.date.accessioned | 2022-01-05T19:12:17Z | |
dc.date.available | 2022-01-05T19:12:17Z | |
dc.date.issued | 2021 | |
dc.description.abstract | The dynamics of cavitation bubbles are important in many flows, but their small sizes and high number densities often preclude direct numerical simulation. We present a computational model that averages their effect on the flow over larger spatiotemporal scales. The model is based on solving a generalized population balance equation (PBE) for nonlinear bubble dynamics and explicitly represents the evolving probability density of bubble radii and radial velocities. Conditional quadrature-based moment methods (QBMMs) are adapted to solve this PBE. A one-way-coupled bubble dynamics problem demonstrates the efficacy of different QBMMs for the evolving bubble statistics. Results show that enforcing hyperbolicity during moment inversion (CHyQMOM) provides comparable model-form accuracy to the traditional conditional method of moments and decreases computational costs by about ten times for a broad range of test cases. The CHyQMOM-based computational model is implemented in MFC, an open-source multi-phase and high-order-accurate flow solver. We assess the effect of the model and its parameters on a two-way coupled bubble screen flow problem. | |
dc.description.comments | This is a pre-print of the article Bryngelson, Spencer H., Rodney O. Fox, and Tim Colonius. "Conditional moment methods for polydisperse cavitating flows." arXiv preprint arXiv:2112.14172 (2021). Copyright 2021 The Authors. Attribution 4.0 International (CC BY 4.0). Posted with permission. </p> <br> Published as Bryngelson, Spencer H., Rodney O. Fox, and Tim Colonius. "Conditional moment methods for polydisperse cavitating flows." Journal of Computational Physics 477 (2023): 111917. https://doi.org/10.1016/j.jcp.2023.111917. | |
dc.identifier.uri | https://dr.lib.iastate.edu/handle/20.500.12876/nrQBM5Wz | |
dc.language.iso | en_US | |
dc.publisher | arXiv | |
dc.source.uri | https://arxiv.org/abs/2112.14172v1 | * |
dc.subject.disciplines | DegreeDisciplines::Physical Sciences and Mathematics::Physics::Fluid Dynamics | |
dc.subject.keywords | Bubbly flow | |
dc.subject.keywords | cavitation | |
dc.subject.keywords | population balance modeling | |
dc.subject.keywords | quadrature-based moment methods | |
dc.title | Conditional moment methods for polydisperse cavitating flows | |
dc.type | Preprint | |
dspace.entity.type | Publication | |
relation.isAuthorOfPublication | 75da3185-b167-47f1-977f-b54aa85bd649 | |
relation.isAuthorOfPublication | 75da3185-b167-47f1-977f-b54aa85bd649 | |
relation.isOrgUnitOfPublication | 86545861-382c-4c15-8c52-eb8e9afe6b75 |
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