Approximate moment methods for population balance equations in particulate and bioengineering processes

R Dürr, A Bück - Processes, 2020 - mdpi.com
Population balance modeling is an established framework to describe the dynamics of
particle populations in disperse phase systems found in a broad field of industrial, civil, and …

Modeling high-Mach-number rarefied crossflows past a flat plate using the maximum-entropy moment method

S Boccelli, P Parodi, TE Magin, JG McDonald - Physics of Fluids, 2023 - pubs.aip.org
The 10 and 14-moment maximum-entropy methods are applied to the study of high-Mach-
number non-reacting crossflows past a flat plate at large degrees of rarefaction. The moment …

Hyperbolic quadrature method of moments for the one-dimensional kinetic equation

RO Fox, F Laurent - SIAM Journal on Applied Mathematics, 2022 - SIAM
A tractable solution is proposed to a classical problem in kinetic theory, namely, given any
set of realizable velocity moments up to order 2n, a closure for the moment of order 2n+1 is …

Learning invariance preserving moment closure model for Boltzmann–BGK equation

Z Li, B Dong, Y Wang - Communications in Mathematics and Statistics, 2023 - Springer
As one of the main governing equations in kinetic theory, the Boltzmann equation is widely
utilized in aerospace, microscopic flow, etc. Its high-resolution simulation is crucial in these …

A kinetic-based hyperbolic two-fluid model for binary hard-sphere mixtures

RO Fox - Journal of Fluid Mechanics, 2019 - cambridge.org
Starting from coupled Boltzmann–Enskog (BE) kinetic equations for a two-particle system
consisting of hard spheres, a hyperbolic two-fluid model for binary, hard-sphere mixtures is …

Investigating chemical heterogeneity in inclusion populations: A multivariate population balance model study in gas-stirred ladles

A Das, JS Kroll-Rabotin, T Quatravaux… - Industrial & …, 2023 - ACS Publications
Achieving high mechanical performance in metallic materials requires precise control of the
inclusion population, and the treatment of liquid steel in gas-stirred ladles is crucial for …

Direct comparison of Eulerian–Eulerian and Eulerian–Lagrangian simulations for particle‐laden vertical channel flow

MC Baker, B Kong, J Capecelatro, O Desjardins… - AIChE …, 2020 - Wiley Online Library
Particle‐laden flows in a vertical channel were simulated using an Eulerian–Eulerian,
Anisotropic Gaussian (EE‐AG) model. Two sets of cases varying the overall mass loading …

Hybrid quadrature moment method for accurate and stable representation of non-Gaussian processes applied to bubble dynamics

A Charalampopoulos… - … of the Royal …, 2022 - royalsocietypublishing.org
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 …

Numerical simulation of rarefied supersonic flows using a fourth-order maximum-entropy moment method with interpolative closure

S Boccelli, W Kaufmann, TE Magin… - Journal of Computational …, 2024 - Elsevier
Maximum-entropy moment methods allow for the modeling of gases from the continuum
regime to strongly rarefied conditions. The development of approximated solutions to the …

Conditional moment methods for polydisperse cavitating flows

SH Bryngelson, RO Fox, T Colonius - Journal of Computational Physics, 2023 - Elsevier
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 …