5 papers
Multi-objective Bayesian optimization of rigid and flexible nozzles for energy-efficient pulsed jet propulsion
Paras Singh, Yukesh Karki, Victor Hernandez +3
The biomechanics of pulsed-jet propulsion in aquatic animals, including squids and jellyfish, provide valuable insights into energy-efficient locomotion. In these organisms, flexib…
Computational and reduced-order modelling of elastic wave-driven impulse enhancement in pulsed jets through passively flexible nozzles
Paras Singh, Daehyun Choi, Saad Bhamla +1
Elastic wave propagation and energy exchange in passively deforming cylindrical nozzles are investigated through three-dimensional, two-way fluid-structure interaction simulations.…
Squid-inspired soft superpropulsion
Daehyun Choi, Paras Singh, Ian Bergerson +12
Squid span four orders of magnitude in size yet rely on pulsed jets. We show that the funnel (siphon) is a compliant nozzle whose dilation and recoil lag mantle contraction, storin…
Efficacy of the Weak Formulation of Sparse Nonlinear Identification in Predicting Vortex-Induced Vibrations
Haimi Jha, Hibah Saddal, Chandan Bose
Vortex-induced vibrations (VIV) remain a canonical yet complex manifestation of fluid-structure interactions, where coupled nonlinear dynamics govern the motion of bluff bodies. Fo…
Effects of Plunging Acceleration on the Passive Morphing of Avian-Inspired Flexible Foils
Hibah Saddal, Lucky Babu Jayswal, Chandan Bose
This study investigates the dynamics of passively morphing foils under accelerated plunging, establishing mechanistic links between transient kinematics, structural compliance, and…