Characterization of bifurcated dual vortex streets in the wake of an oscillating foil

S Verma, A Hemmati - Journal of Fluid Mechanics, 2022 - cambridge.org
Wake evolution of an oscillating foil with combined heaving and pitching motion is evaluated
numerically for a range of phase offsets (pairs observed consistently for oscillating foils with …

Study on nonlinear heave and pitch motions of conventional and tumblehome hulls in head seas

BS Kim, DM Park, Y Kim - Ocean Engineering, 2022 - Elsevier
The broadside of the tumblehome hull is inclined inward, while that of the conventional hulls
is inclined outward. As a result of the geometric shape, the tumblehome hull has distinct …

[HTML][HTML] Aerodynamic reduced-order Volterra model of an ornithopter under high-amplitude flap**

C Ruiz, JÁ Acosta, A Ollero - Aerospace Science and Technology, 2022 - Elsevier
The unsteady aerodynamics of flap** low-aspect-ratio ellipsoidal-wings in ornithopters is
analyzed and modeled by the use of three dimensional Computational Fluid Dynamics …

Evolution of wake structures behind oscillating hydrofoils with combined heaving and pitching motion

S Verma, A Hemmati - Journal of Fluid Mechanics, 2021 - cambridge.org
The wake of an oscillating teardrop hydrofoil with combined heaving and pitching motion
was studied numerically at Reynolds number of 8000 and Strouhal numbers of, the wake …

A numerical model for simulating the interaction of dam-break waves and floating structures

D Wang, S Dong - Ocean Engineering, 2023 - Elsevier
Using OpenFOAM, a numerical model is proposed to simulate the interaction of dam-break
waves and floating structures. A geometric volume-of-fluid (VOF) method (isoAdvector) is …

Effects of Reynolds number and average angle of attack on the laminar scaling of oscillating foils

S Verma, BRS Freeman, A Hemmati - Physics of Fluids, 2022 - pubs.aip.org
The variation in thrust generation with respect to Reynolds number was numerically
evaluated for an oscillating foil with combined pitching and heaving motion at a range of …

On the association of kinematics, spanwise instability and growth of secondary vortex structures in the wake of oscillating foils

S Verma, MSU Khalid… - Proceedings of the …, 2023 - royalsocietypublishing.org
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≤ S tc≤ 0.56) and …

Influence of kinematics on the growth of secondary wake structures behind oscillating foils

S Verma, A Hemmati - International Journal of Heat and Fluid Flow, 2023 - Elsevier
The wake of an oscillating hydrofoil in combined heaving and pitching motion is numerically
evaluated at a range of phase offset (90∘≤ ϕ≤ 27 0∘) and chord based Strouhal number …

Numerical investigation of the interaction between the moving plate and sediment plume

B Yang, F Yang, B Liang, Q Zhang, Z Wang, J Wang - Ocean Engineering, 2022 - Elsevier
A two-phase mixture model solver for simulating sediment plume and moving plate
interaction is established based on the OpenFOAM. This solver treats the coupling of fluid …

Evolution of turbulent pipe flow recovery over a square bar roughness element at a range of Reynolds numbers

S Goswami, A Hemmati - Physics of Fluids, 2021 - pubs.aip.org
The Reynolds number effects and scaling on response and recovery of flow over square bar
roughness elements are numerically examined at a range of Reynolds numbers between 5× …