Results from particle-resolved simulations
, 2023 We review some of the results obtained to date with the aid of the PR-DNS approach to turbulent particulate flows. It is shown that the method has matured to a point which allows to apply it successfully to a wide variety of fluid/particle configurations, albeit still at a relatively large computational cost.
Chouippe, Agathe +4 more
openaire +3 more sources
A conjugated heat and mass transfer model to implement reaction in particle-resolved CFD simulations of catalytic fixed bed reactors [PDF]
Engineering Applications of Computational Fluid Mechanics, 2023 Modelling catalytic fixed bed reactors with a small tube-to-particle diameter ratio requires a detailed description of the interactions between fluid flow, intra-particle transport, and the chemical reaction(s) within the catalyst.
Martin Kutscherauer +5 more
doaj +2 more sources
Investigation of soot processes in an optical diesel engine [PDF]
, 2012 This thesis was submitted for the degree of Doctor of Philosophy and was awarded by Brunel UniversityThis study is dedicated to investigation of soot formed during combustion in diesel engine.
Menkiel, Barbara
core +7 more sources
A conjugated heat and mass transfer model to implement reaction in particle-resolved CFD simulations of catalytic fixed bed reactors [PDF]
, 2023 Modeling catalytic fixed bed reactors with a small tube-to-particle diameter ratio requires a detailed description of the interactions between fluid flow, intra-particle transport, and the chemical reaction(s) within the catalyst.
Martin , Kutscherauer +5 more
core +2 more sources
Settling of cohesive sediment: particle-resolved simulations [PDF]
Journal of Fluid Mechanics, 2018 We develop a physical and computational model for performing fully coupled, grain-resolved direct numerical simulations of cohesive sediment, based on the immersed boundary method. The model distributes the cohesive forces over a thin shell surrounding each particle, thereby allowing for the spatial and temporal resolution of the cohesive forces during
B. Vowinckel +3 more
openaire +6 more sources
The contribution of plume-scale nucleation to global and regional aerosol and CCN concentrations: evaluation and sensitivity to emissions changes [PDF]
Atmospheric Chemistry and Physics, 2014 We implement the Predicting Particles Produced in Power-Plant Plumes (P6) sub-grid sulphate parameterization for the first time into a global chemical-transport model with online aerosol microphysics, the GEOS-Chem-TOMAS model.
R. G. Stevens, J. R. Pierce
doaj +1 more source
Bridging the Gaps: from Particle-resolved to Multi-tubular Reactor Simulation
Chemical Engineering Transactions, 2021 Packed bed reactors have been widely used in the chemical and process industry for several decades. They can be difficult to design and operate due to their size and complexity.
Thomas Eppinger, Ravindra Aglave
doaj +1 more source
Particle‐resolved simulations of four‐way coupled, polydispersed, particle‐laden flows
International Journal for Numerical Methods in Fluids, 2022 AbstractWe present a collocated‐grid framework for direct numerical simulations of polydisperse particles submerged in a viscous fluid. The fluid‐particle forces are coupled with the immersed boundary method (IBM) while the particle‐particle forces are modeled with a combination of contact and lubrication models, adapted for collocated grids.
Yinuo Yao +7 more
openaire +2 more sources
Scattering asymmetry in in-situ Mie polarimetry diagnostic of nanodust clouds
New Journal of Physics, 2023 Imaging Mie polarimetry is key to determining spatially resolved information about the properties, i.e. refractive index and grain size, of particle clouds, such as during the growth process in reactive particle producing plasmas.
Julia Kobus +5 more
doaj +1 more source
Simulations of spin/polarization-resolved laser–plasma interactions in the nonlinear QED regime
Matter and Radiation at Extremes, 2023 Strong-field quantum electrodynamics (SF-QED) plays a crucial role in ultraintense laser–matter interactions and demands sophisticated techniques to understand the related physics with new degrees of freedom, including spin angular momentum.
Feng Wan +9 more
doaj +1 more source