47 citations · 52 across the 4 of their papers we have counts for
9 papers · 1 filter
Triglobal resolvent analysis of swept-wing wakes
Jean Hélder Marques Ribeiro, Chi-An Yeh, Kunihiko Taira
Through triglobal resolvent analysis, we reveal the effects of wing tip and sweep angle on laminar separated wakes over swept wings. For the present study, we consider wings with s…
Resolvent analysis on the origin of two-dimensional transonic buffet
Yoimi Kojima, Chi-An Yeh, Kunihiko Taira +1
Resolvent analysis is performed to identify the origin of two-dimensional transonic buffet over an airfoil. The base flow for the resolvent analysis is the time-averaged flow over…
Resolvent analysis of an airfoil laminar separation bubble at Re = 500,000
Chi-An Yeh, Stuart I. Benton, Kunihiko Taira +1
We perform resolvent analysis to examine the perturbation dynamics over the laminar separation bubble (LSB) that forms near the leading edge of a NACA 0012 airfoil at a chord-based…
Network broadcast analysis and control of turbulent flows
Chi-An Yeh, Muralikrishnan Gopalakrishnan Meena, Kunihiko Taira
We present a network-based modal analysis technique that identifies key dynamical paths along which perturbations amplify over a time-varying base flow. This analysis is built upon…
Active Flow Control for Drag Reduction of a Plunging Airfoil under Deep Dynamic Stall
Brener D'Lélis Oliveira Ramos, William Roberto Wolf, Chi-An Yeh +1
High-fidelity simulations are performed to study active flow control techniques for alleviating deep dynamic stall of a SD7003 airfoil in plunging motion. The flow Reynolds number…
Modal Analysis of Fluid Flows: Applications and Outlook
Kunihiko Taira, Maziar S. Hemati, Steven L. Brunton +5
We present applications of modal analysis techniques to study, model, and control canonical aerodynamic flows. To illustrate how modal analysis techniques can provide physical insi…