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Flow configuration
Flow configuration
Lx = 48h, Ly = 16.8h and Lz = 2h
Bottom plate is stationary and roughness is added to it
Top plate moves with a velocity Uw
Roughness height (r) = 0.2h
Pitch separation (s) = 5r and 10r
d-type roughness
d-type roughness
k-type roughness
k-type roughness
OMY_1.avik-type roughness
k-type roughness
Spanwise vorticity showing the KH structures behind the ribs
OMY_1_5k.avid-type roughness
d-type roughness
The KH structures are absent due to the short pitch separation
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