17 citations · 40 across the 9 of their papers we have counts for
11 papers
Separated flows over swept wings across transitional Reynolds numbers
Laura Victoria Rolandi, Jonathan Quang Tran, Kunihiko Taira
We explore the effect of wing sweep on the interaction between leading-edge separation and tip vortex for a finite wing with sweep angles to , semi-aspect-rat…
Vertical vortex gust encounters of a delta wing
Zhecheng Liu, Kunihiko Taira, Jeff D. Eldredge
The present study analyzes encounters of a vertical vortex with a tailless NACA 0012 delta wing with a sweep angle of 60 degrees at an angle of attack of 10 degrees and Reynolds nu…
Forcing-informed resolvent analysis: Identification of input-output relations in self-sustained flows
Yuta Iwatani, Kunihiko Taira, Soshi Kawai
We present a forcing-informed (FI) resolvent analysis framework to identify input-output relations for statistically stationary self-sustained unsteady flows. The central idea of t…
Vortical similarities across laminar and turbulent extreme gust encounters
Hiroto Odaka, Barbara Lopez-Doriga, Kunihiko Taira
This study uncovers a striking similarity between massively separated laminar and turbulent flows that develop over a square wing during extreme vortex gust encounters. The evolvin…
Extreme vortex gust encounters by a square wing
Hiroto Odaka, Luke Smith, Kunihiko Taira
Extreme gust encounters by finite wings with disturbance velocity exceeding their cruise speed remain largely unexplored, while particularly relevant to miniature-scale aircraft. T…
Biglobal resolvent analysis of separated flow over a NACA0012 airfoil
Laura Victoria Rolandi, Luke Smith, Michael Amitay +2
The effects of Reynolds number across , , , and on separated flow over a two-dimensional NACA0012 airfoil at an angle of attack of are inv…
Influence of three-dimensionality on wake synchronization of oscillatory cylinder
Youngjae Kim, Vedasri Godavarthi, Laura Victoria Rolandi +2
We investigate the effect of three-dimensionality on the synchronization characteristics of the wake behind an oscillating circular cylinder at Re = 300. Cylinder oscillations in r…
The effect of Reynolds number on the separated flow over a low-aspect-ratio wing
Luke Smith, Kunihiko Taira
At high incidence, low-aspect-ratio wings present a unique set of aerodynamic characteristics, including flow separation, vortex shedding, and unsteady force production. Furthermor…
An Invitation to Resolvent Analysis
Laura Victoria Rolandi, Jean Hélder Marques Ribeiro, Chi-An Yeh +1
Resolvent analysis is a powerful tool that can reveal the linear amplification mechanisms between the forcing inputs and the response outputs about a base flow. These mechanisms ca…
Triglobal resolvent-analysis-based control of separated flows around low-aspect-ratio wings
Jean Hélder Marques Ribeiro, Kunihiko Taira
We perform direct numerical simulations (DNS) of actively controlled laminar separated wakes around low-aspect-ratio wings with two primary goals: (i) reducing the size of the sepa…
Similarities in Massive Separation Across Reynolds Numbers for Swept and Tapered Finite Span Wings
Jacob Neal, Anton Burtsev, Jean Helder Marques Ribeiro +3
Experimental investigations were performed to elucidate the features of flow fields occurring over cantilevered finite-aspect ratio NACA 0015 wings at high angles of attack with va…