40 citations · 89 across the 9 of their papers we have counts for
4 papers · 1 filter
Physics-Informed Scaling Laws for the Performance of Pitching Foils in Schooling Configurations
Ahmet Gungor, Muhammad Saif Ullah Khalid, Arman Hemmati
This study introduces novel physics-based scaling laws to estimate the propulsive performance of synchronously pitching foils in various schooling configurations at Re=4000. These…
On the Association of Kinematics, Spanwise Instability and Growth of Secondary Vortex Structures in the Wake of Oscillating Foils
Suyash Verma, Muhammad Saif Ullah Khalid, Arman Hemmati
Three-dimensional wake of an oscillating foil with combined heaving and pitching motion is numerically evaluated at a range of chord-based Strouhal number (0.32 \le Stc \le 0.56) a…
On the association of secondary hairpin growth and surface pressure gradient for oscillating foils
Suyash Verma, Muhammad Saif Ullah Khalid, Arman Hemmati
The correspondence of secondary spanwise structures and pressure gradient is numerically evaluated for a foil, performing heaving and pitching motion, at a range of phase offsets (…
Momentum analysis of complex time-periodic flows
Benjamin R. S. Freeman, Robert J. Martinuzzi, Arman Hemmati
Several methods have been proposed to characterize the complex interactions in turbulent wakes, especially for flows with strong cyclic dynamics. This paper introduces the concept…