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physics.flu-dyn2026
A formal log(Re)-cost framework for the engineering turbulence problem
Jiaqi Li, Robert F. Kunz, George Huang +1
In fluid engineering, the turbulence problem is the longstanding challenge of obtaining accurate predictions of engineering quantities at affordable computational cost. Viewed thro…
physics.flu-dyn2026
Integral analysis based diagnostics of turbulence model errors in skin friction
Shyam S. Nair, Vishal A. Wadhai, Robert F. Kunz +1
Error diagnostics for turbulence models have traditionally focused on engineering quantities of interest, such as the skin-friction coefficient, , most often by comparing the…
physics.flu-dyn2024
Rough surfaces in under-explored surface morphology space and their implications on roughness modelling
Shyam S. Nair, Vishal A. Wadhai, Robert F. Kunz +1
We report direct numerical simulation (DNS) results of the rough-wall channel, focusing on roughness with high statistics but small to negative statistics, and w…