Enhancing the two-layer k-epsilon turbulence model through rough wall modification
H Ma, HC Chen - Physics of Fluids, 2024 - pubs.aip.org
Surface roughness significantly influences turbulence structures, affecting skin friction and
velocity profiles. Precisely modeling the roughness effects is essential for reliable numerical …
velocity profiles. Precisely modeling the roughness effects is essential for reliable numerical …
[HTML][HTML] Exploring the role of surface roughness in concrete-based thermal energy storage systems: A computational study
This study computationally investigates the effect of thermal energy storage (TES) material
surface roughness on heat transfer fluid (HTF) flow dynamics and heat transfer capabilities …
surface roughness on heat transfer fluid (HTF) flow dynamics and heat transfer capabilities …
Machine-learning wall-model large-eddy simulation accounting for isotropic roughness under local equilibrium
R Ma, A Lozano-Duran - arXiv preprint arXiv:2406.00471, 2024 - arxiv.org
We introduce a wall model (WM) for large-eddy simulation (LES) applicable to rough
surfaces with Gaussian and non-Gaussian distributions for both transitionally and fully rough …
surfaces with Gaussian and non-Gaussian distributions for both transitionally and fully rough …
A data-driven distributed force model for wall-modeled large-eddy simulations of rough-wall turbulence
In this work, a data-driven distributed force model for wall-modeled large-eddy simulations of
rough-wall turbulence is proposed. In the proposed model, a body force with its distribution …
rough-wall turbulence is proposed. In the proposed model, a body force with its distribution …
[HTML][HTML] Performance of vortex pump in CFD simulations with rough walls
W Li - International Journal of Fluid Engineering, 2025 - pubs.aip.org
Flow passages in vortex pumps usually have rough walls. Precise consideration of wall
roughness is an important issue in pump flow simulations. Numerical studies of the effects of …
roughness is an important issue in pump flow simulations. Numerical studies of the effects of …
[PDF][PDF] A velocity transformation for rough-wall-bounded turbulent flows
Rough-wall turbulent flows are ubiquitous in fluid mechanics. Several critical components in
various propulsion and turbomachinery devices are subject to conditions in which the flow …
various propulsion and turbomachinery devices are subject to conditions in which the flow …