17 citations · 40 across the 9 of their papers we have counts for
11 papers · 1 filter
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…