47 citations · 48 across the 3 of their papers we have counts for
8 papers · 1 filter
Effects of surface roughness on the propulsive performance of pitching foils
Rodrigo Vilumbrales-Garcia, Melike Kurt, Gabriel D. Weymouth +1
The hydrodynamic influence of surface texture on static surfaces ranges from large drag penalties (roughness) to potential performance benefits (shark-like skin). Although, it is o…
Effects of porous substrates on the structure of turbulent boundary layers
Prateek Jaiswal, Bharathram Ganapathisubramani
Three different porous substrates (with different pore sizes, s, and permeabilities, K) are used to examine their effect on the structure of boundary layer flow over them. The flow…
Scaling of secondary flows with surface parameters: a linear approach
Gerardo Zampino, Davide Lasagna, Bharathram Ganapathisubramani
Secondary flows are generated when a lateral variation of the topography, such as streamwise aligned ridges, is imposed to a turbulent wall-bounded flow. In this case, the flow fie…
Effects of Aspect Ratio on Rolling and Twisting Foils
A. N. Zurman-Nasution, B. Ganapathisubramani, G. D. Weymouth
Flapping flight and swimming are increasingly studied both due to their intrinsic scientific richness and their applicability to novel robotic systems. Strip theory is often applie…
Deflected Wake Interaction of Tandem Flapping Foils
N. S. Lagopoulos, G. D. Weymouth, B. Ganapathisubramani
Symmetric flapping foils are known to produce deflected jets at high frequency-amplitude combinations even at a zero mean angle of attack. This reduces the frequency range of usefu…
Universal scaling law in drag-to-thrust wake transition of flapping foils
N. S. Lagopoulos, G. D. Weymouth, B. Ganapathisubramani
Reversed von Kármán streets are responsible for a velocity surplus in the wake of flapping foils, indicating the onset of thrust generation. However, the wake pattern cannot be pre…