16 papers
Wave-Assisted Propulsion in Bimodal Sea States: Hydrodynamic Performance and Hydroelastic Tuning
Avinash Kumar Pandey, Jung-Hee Seo, Rajat Mittal
Wave-assisted propulsion (WAP) systems harvest ocean wave energy to generate propulsive thrust, offering a promising approach for improving endurance and energy efficiency of marin…
GPU-Accelerated Simulations of Moving Boundary Problems and Fluid-Structure Interaction at Extreme Scales
Sushrut Kumar, Joshua Romero, Jung-Hee Seo +2
Computational fluid dynamics and fluid-structure interaction simulations involving moving and deforming bodies is extremely hard. In this work, we present a graphical processing un…
Flow-Mediated Regulation of Pathogen Survival in the Human Stomach
Sharun Kuhar, Jung-Hee Seo, Rajat Mittal
Foodborne diseases remain a major public-health burden, and the gastric acid barrier serves as the body's primary chemical defense against ingested microbes. Yet experimentally inv…
Energy Transfer Mechanisms in Wake-Modulated Transonic Flutter
Vedasri Godavarthi, Jacob Turner, Jung-Hee Seo +1
Transonic flutter is a detrimental aeroelastic instability that can generate large-amplitude structural oscillations, leading to severe vibration, fatigue damage, reduced operation…
Flow-induced dorso-ventral deformation enhances propulsive efficiency in flexible caudal fins
Sushrut Kumar, Matthew J. McHenry, Jung-Hee Seo +1
Fish swim with flexible fins that stand in stark contrast to the rigid propulsors of engineered vehicles. Using numerical simulations of the dynamics of flow-structure interaction,…
A GPU-Accelerated Sharp Interface Immersed Boundary Solver for Large Scale Flow Simulations
Sushrut Kumar, Joshua Romero, Jung-Hee Seo +2
Immersed boundary methods (IBMs) facilitate the simulation of flows around stationary, moving, and deforming bodies on Cartesian grids. However, extending these simulations to the…