43 citations · 177 across the 19 of their papers we have counts for
19 papers
Consistent closure modeling in large eddy simulations by direct approximation of the filtered advection term
Max Hausmann, Berend van Wachem
This article addresses the widely overlooked conceptual inconsistency of the large eddy simulation (LES) framework, namely that the commonly used advection term introduces higher w…
Correlations for aerodynamic force coefficients of non-spherical particles in compressible flows
Christian Gorges, Victor Chéron, Anjali Chopra +2
This study presents particle-resolved direct numerical simulations using three-dimensional body-fitted hexahedral meshes to investigate the aerodynamic force and torque coefficient…
Physically consistent immersed boundary method: a framework for predicting hydrodynamic forces on particles with coarse meshes
Max Hausmann, Hani Elmestikawy, Berend van Wachem
In the present paper, a fluid-particle coupling method is directly derived from the Navier-Stokes equations (NSE) by applying the concept of volume-filtering, yielding a physically…
Drag, lift, and torque correlations for axi-symmetric rod-like non-spherical particles in linear wall-bounded shear flow
Victor Chéron, Berend van Wachem
This paper presents novel correlations to predict the drag, lift, and torque coefficients of axi-symmetric non-spherical rod-like particles in a wall-bounded linear shear flow. The…
A semi-analytical transient undisturbed velocity correction scheme for wall-bounded two-way coupled Euler-Lagrange simulations
Akshay Chandran, Fabien Evrard, Berend van Wachem
In the present paper, we model the velocity disturbance generated by a regularized forcing near a planar wall, which, along with the temporal nature of the forcing, provides an est…
Undisturbed velocity recovery with transient and weak inertia effects in volume-filtered simulations of particle-laden flows
Fabien Evrard, Akshay Chandran, Ricardo Cortez +1
In volume-filtered Euler-Lagrange simulations of particle-laden flows, the fluid forces acting on a particle are estimated using reduced models, which rely on the knowledge of the…
Study and derivation of closures in the volume-filtered framework for particle-laden flows
Max Hausmann, Victor Chéron, Fabien Evrard +1
The volume-filtering of the Navier-Stokes equations allows to consider the effect that particles have on the fluid without further assumptions, but closures arise of which the impl…
Simulating interfacial flows: a farewell to planes
Fabien Evrard, Robert Chiodi, Berend van Wachem +1
Over the past decades, the volume-of-fluid (VOF) method has been the method of choice for simulating atomization processes, owing to its unique ability to discretely conserve mass.…
Microstructure-based prediction of hydrodynamic forces in stationary particle assemblies
Berend van Wachem, Hani Elmestikawy, Victor Chéron
In the 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…
Amplitude modulation of acoustic waves in accelerating flows quantified using acoustic black and white hole analogues
Sören Schenke, Fabian Sewerin, Berend van Wachem +1
We investigate the amplitude modulation of acoustic waves in accelerating flows, a problem that is still not fully understood, but essential to many technical applications, ranging…
Efficient reduction of vertex clustering using front tracking with surface normal propagation restriction
Christian Gorges, Azur Hodžić, Fabien Evrard +3
A significant computational expense and source of numerical errors in front tracking is the remeshing of the triangulated front, required due to distortion and compaction of the fr…
Wavelet based modeling of subgrid-scales in LES of particle-laden turbulent flows
Max Hausmann, Fabien Evrard, Berend van Wachem
We propose a novel model to obtain the subgrid-scale velocity in the context of large-eddy simulation (LES) of particle-laden turbulent flows, to recover accurate particle statisti…
Drag, lift and torque correlations for axi-symmetric non-spherical particles in locally non-uniform flows
Victor Chéron, Fabien Evrard, Berend van Wachem
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…
A large eddy simulation model for two-way coupled particle-laden turbulent flows
Max Hausmann, Fabien Evrard, Berend van Wachem
In this paper we propose a new modeling framework for large eddy simulations (LES) of particle-laden turbulent flows that captures the interaction between the particle and fluid ph…
A hybrid immersed boundary method for dense particle-laden flows
Victor Chéron, Fabien Evrard, Berend van Wachem
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 regulari…
Spectral response between particle and fluid kinetic energy in decaying homogeneous isotropic turbulence
Martin Schiødt, Azur Hodzic, Fabien Evrard +3
In particle-laden turbulence, the Fourier Lagrangian spectrum of each phase is regularly computed, and analytically derived response functions relate the Lagrangian spectrum of the…
Phase proper orthogonal decomposition of non-stationary turbulent flow
Yisheng Zhang, Azur Hodzic, Fabien Evrard +2
A phase proper orthogonal decomposition (Phase POD) method is demonstrated, utilizing phase averaging for the decomposition of spatio-temporal behaviour of statistically non-statio…
First moments of a polyhedron clipped by a paraboloid
Fabien Evrard, Robert Chiodi, Austin Han +2
We provide closed-form expressions for the first moments (i.e., the volume and volume-weighted centroid) of a polyhedron clipped by a paraboloid, that is, of a polyhedron intersect…
Characterizing Lagrangian particle dynamics in decaying HIT using proper orthogonal decomposition
Martin Schiødt, Azur Hodzic, Fabien Evrard +2
The particle proper orthogonal decomposition (PPOD) is demonstrated on cases of particle flows in decaying homogeneous isotropic turbulence. Data is generated through one-way coupl…