Simulations of flow and heat tranfer (passive scalar) in fully developed channals over a variety of roughness geometries.
DNS of momentum and heat transfer over rough walls
- pseudo-spectral solver SIMSON
- streamwise and spanwise periodicity of simulation domain
- direct-forcing immersed boundary method for surface geometry
The files are labeled after the simulation case names
Forooghi, P., Stripf, M., & Frohnapfel, B. (2018). A systematic study of turbulent heat transfer over rough walls. International Journal of Heat and Mass Transfer 127, 1157-1168.
The simulated cases published in the following papers are available upon request
Forooghi, P., Stroh, A., Magagnato, F., Jakirlic, S., & Frohnapfel, B. (2017). Toward a universal roughness correlation. Journal of Fluids engineering 139(12), 121201.
Forooghi, P., Frohnapfel, B., Magagnato, F., & Busse, A. (2018). A modified Parametric Forcing Approach for modelling of roughness. International journal of Heat and Fluid Flow 71, 200-209.
Forooghi, P., Stroh, A., Schlatter, P., & Frohnapfel, B. (2018). Direct numerical simulation of flow over dissimilar, randomly distributed roughness elements: A systematic study on the effect of surface morphology on turbulence. Physical Review Fluids, 3(4), 044605.