88 citations · 197 across the 8 of their papers we have counts for
8 papers
Micro-convection mass transfer following bubble coalescence on a solid wall
Zahra Saadat, Michele Cattani, Amin Soltani +1
The Volume-of-Fluid implementation in the \href{basilisk.fr}{Basilisk} flow solver is employed to study mass transfer after coalescence-induced jump-off of bubbles on solid substra…
Data-driven correlations for thermohydraulic roughness properties
Simon Dalpke, Jiasheng Yang, Pourya Forooghi +2
The influence of rough surfaces on fluid flow is characterized by the downward shift in the logarithmic layer of velocity and temperature profiles, namely the velocity roughness fu…
Prediction of equivalent sand-grain size and identification of drag-relevant scales of roughness -- a data driven approach
Jiasheng Yang, Alexander Stroh, Sangseung Lee +3
The purpose of the present work is to examine two possibilities; firstly, predicting equivalent sand-grain roughness size based on the roughness height probability density fu…
Frozen propagation of Reynolds force vector from high-fidelity data into Reynolds-averaged simulations of secondary flows
Ali Amarloo, Pourya Forooghi, Mahdi Abkar
Successful propagation of information from high-fidelity sources (i.e., direct numerical simulations and large-eddy simulations) into Reynolds-averaged Navier-Stokes (RANS) equatio…
DNS-based characterization of pseudo-random roughness in minimal channels
Jiasheng Yang, Alexander Stroh, Daniel Chung +1
Direct numerical simulation is used to study turbulent flow over irregular rough surfaces in the periodic minimal channel configuration. The generation of irregular rough surface i…
Predicting drag on rough surfaces by transfer learning of empirical correlations
Sangseung Lee, Jiasheng Yang, Pourya Forooghi +2
Recent developments in neural networks have shown the potential of estimating drag on irregular rough surfaces. Nevertheless, the difficulty of obtaining a large high-fidelity data…
Rearrangement of secondary flow over spanwise heterogeneous roughness
A. Stroh, K. Schäfer, B. Frohnapfel +1
Turbulent flow over a surface with streamwise-elongated rough and smooth stripes is studied by means of direct numerical simulation (DNS) in a periodic plane open channel with full…
A systematic study of turbulent heat transfer over rough walls
Pourya Forooghi, Matthias Stripf, Bettina Frohnapfel
Direct Numerical Simulations are used to solve turbulent flow and heat transfer over a variety of rough walls in a channel. The wall geometries are exactly resolved in the simulati…