Heat transfer to particles is a key aspect of thermo-chemical conversion of pulverized fuels. These fuels tend to agglomerate in some areas of turbulent flow and to form particle clusters.
Mario Pichler +2 more
doaj +3 more sources
A high-fidelity methodology for particle-resolved direct numerical simulations
We present a novel computational method for direct numerical simulations of particle-laden flows with fully-resolved particles (PR-DNS). The method is based on the recently developed Volume-Filtering Immersed Boundary method [Dave et al, Journal of Computational Physics, 487:112136, 2023] derived by volume-filtering the transport equations.
Mohamed Houssem Kasbaoui +1 more
exaly +3 more sources
Improvement of the Viscous Penalty Method for Particle-Resolved Simulations
A numerical study of the parameters controlling the viscous penalty method is investigated to better set up Particle-Resolved Direct Numerical Simulations (PR-DNS) of particulate flows. Based on this analysis, improvements of the methods are proposed in order to reach an almost second order convergence in space.
Amine Chadil +2 more
exaly +5 more sources
Gas-Solid Heat Transfer Computation from Particle-Resolved Direct Numerical Simulations
Particle-Resolved simulations (PR-DNS) have been conducted using a second order implicit Viscous Penalty Method (VPM) to study the heat transfer between a set of particles and an incompressible carrier fluid.
Mohamed-Amine Chadil +2 more
doaj +1 more source
Simulation of Dynamic Rearrangement Events in Wall-Flow Filters Applying Lattice Boltzmann Methods
Wall-flow filters are applied in the exhaust treatment of internal combustion engines for the removal of particulate matter (PM). Over time, the pressure drop inside those filters increases due to the continuously introduced solid material, which forms ...
Nicolas Hafen +3 more
doaj +1 more source
Rearrangement events in wall-flow filters lead to the formation of specific deposition patterns, which affect a filter’s pressure drop, its loading capacity and the separation efficiency.
Nicolas Hafen +3 more
doaj +1 more source
Resolved-particle simulation by the Physalis method: Enhancements and new capabilities [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Adam J. Sierakowski, Andrea Prosperetti
openaire +3 more sources
Assessment of aerosol's mass concentrations from measured linear particle depolarization ratio (vertically resolved) and simulations [PDF]
Multi-wavelength depolarization Raman lidar measurements from Magurele, Romania are used in this study along with simulated mass-extinction efficiencies to calculate the mass concentration profiles of different atmospheric components, due to their ...
A. Nemuc +4 more
doaj +1 more source
Investigating the settling dynamics of cohesive silt particles with particle-resolving simulations [PDF]
The settling of cohesive sediment is ubiquitous in aquatic environments. In the settling process, the silt particles show behaviors that are different from non-cohesive particles due to the influence of inter-particle cohesive force. While it is a consensus that cohesive behaviors depend on the characteristics of sediment particles (e.g., Bond number ...
Sun, Rui, Xiao, Heng, Sun, Honglei
openaire +2 more sources
Investigating cohesive sediment dynamics in open waters via grain-resolved simulations
Cohesive particulate flows play an important role in environmental fluid dynamics, as well as in a wide variety of civil and process engineering applications.
Bernhard Vowinckel +3 more
doaj +1 more source

