The acoustic pressure generated by the cavitation bubble expansion and collapse near a rigid wall

SR Gonzalez-Avila, F Denner, CD Ohl - Physics of Fluids, 2021 - pubs.aip.org
We analyze systematically the acoustic transients emitted during the collapse of a laser-
induced cavitation bubble for 0: 4 c 5: 2. c is the standoff parameter, the ratio of the distance …

Single cavitation bubble dynamics in a stagnation flow

D Mnich, F Reuter, F Denner, CD Ohl - Journal of Fluid Mechanics, 2024 - cambridge.org
Jetting of collapsing bubbles is a key aspect in cavitation-driven fluid–solid interactions as it
shapes the bubble dynamics and additionally due to its direct interaction with the wall. We …

Adaptive mesh refinement for VOF modeling gas-liquid two-phase flow: A summary of some algorithms and applications

S Yan, X Zhang, Z Luo - Chemical Engineering Science, 2025 - Elsevier
Abstract The Volume-of-Fluid method (VOF) is a common technique for tracking the interface
of two-phase flow in computational fluid dynamics (CFD) simulation. Adaptive mesh …

[HTML][HTML] Comparing two IBM implementations for the simulation of uniform packed beds

C Gorges, M Brömmer, C Velten, S Wirtz, EI Mahiques… - Particuology, 2024 - Elsevier
Nowadays, the design of fixed packed bed reactors still relies on empirical correlations,
which, especially for small tube to particle diameter ratios, are mostly too inaccurate …

[HTML][HTML] Euler-Lagrange modelling of dilute particle-laden flows with arbitrary particle-size to mesh-spacing ratio

F Evrard, F Denner, B van Wachem - Journal of Computational Physics: X, 2020 - Elsevier
This paper addresses the two-way coupled Euler-Lagrange modelling of dilute particle-
laden flows, with arbitrary particle-size to mesh-spacing ratio. Two-way coupled Euler …

A hybrid immersed boundary method for dense particle-laden flows

V Chéron, F Evrard, B van Wachem - Computers & Fluids, 2023 - Elsevier
A novel smooth immersed boundary method (IBM) based on a direct-forcing formulation is
proposed to simulate incompressible dense particle-laden flows. This IBM relies on a …

[HTML][HTML] Microstructure-based prediction of hydrodynamic forces in stationary particle assemblies

B van Wachem, H Elmestikawy, V Chéron - International Journal of …, 2024 - Elsevier
In this work, we derive novel hydrodynamic force models to describe the interaction of a flow
with particles in an assembly when only an averaged resolution of the flow is available …

High order semi-implicit WENO schemes for all-Mach full Euler system of gas dynamics

S Boscarino, J Qiu, G Russo, T **ong - SIAM Journal on Scientific Computing, 2022 - SIAM
In this paper, we propose a new high order semi-implicit scheme for the all-Mach full Euler
equations of gas dynamics. Material waves are treated explicitly, while acoustic waves are …

Drag, lift and torque correlations for axi-symmetric rod-like non-spherical particles in locally linear shear flows

V Chéron, F Evrard, B van Wachem - International Journal of Multiphase …, 2024 - Elsevier
This paper derives new correlations to predict the drag, lift and torque coefficients of axi-
symmetric non-spherical rod-like particles for several fluid flow regimes and velocity profiles …

Multiscale modeling and validation of the flow around Taylor bubbles surrounded with small dispersed bubbles using a coupled VOF-DBM approach

RFL Cerqueira, EE Paladino, F Evrard, F Denner… - International Journal of …, 2021 - Elsevier
This work presents a multiscale three-dimensional CFD model for the simulation of two-
phase gas-liquid flows with different interface length scales, with focus on slug flow pattern …