Upstream actuation for bluff-body wake control driven by a genetically inspired optimization

G Minelli, T Dong, BR Noack… - Journal of fluid mechanics, 2020 - cambridge.org
The control of bluff-body wakes for reduced drag and enhanced stability has traditionally
relied on the so-called direct-wake control approach. By the use of actuators or passive …

Momentum coefficient governing discrete jet actuation for separation control

C Otto, JC Little, B Rafferty, R Woszidlo - AIAA Journal, 2022 - arc.aiaa.org
Amplitude scaling laws for active control of boundary layer separation using discrete jet
forcing are not fully established. Momentum coefficient is the most widely accepted scaling …

Introduction to the flow control virtual collection

D Greenblatt, EA Whalen, IJ Wygnanski - AIAA Journal, 2019 - arc.aiaa.org
Prandtl in 1904 [1] and, in particular, the control of boundary-layer separation. Traditional
boundary layer control (BLC) involved the addition of momentum flux or the removal of the …

Experimental investigation on the impingement of synthetic jet vortex rings onto a porous wall

Y Xu, ZY Li, JJ Wang - Physics of Fluids, 2021 - pubs.aip.org
This paper presents an experimental study on the effects of the Reynolds number (Re sj=
300, 600, and 900) and porosity (ϕ= 20%–85%) on synthetic jet vortex rings impinging onto …

Short-time aerodynamic research for large scale test models in hypersonic wind tunnels

Y Sun, S Li, H Gao, F Xie, H Xu, X Zhang, J Song… - Measurement, 2024 - Elsevier
Current research in hypersonic wind tunnel aerodynamic testing predominantly focuses on
small-scale and lightweight models, typically limited to scales of 4 m and weights under 1 …

[HTML][HTML] Control of a bluff body wake using travelling jets

A Canova, T Zhu, JF Morrison - International Journal of Heat and Fluid Flow, 2024 - Elsevier
This work investigates the wake behind an axisymmetric bluff body at R e D∼ 2⋅ 1 0 5 and
applies control via four types of travelling jets which consist of different jet profiles …

[HTML][HTML] Near wake coherent structures of a turbulent axisymmetric bluff body wake

T Zhu, G Rigas, JF Morrison - International Journal of Heat and Fluid Flow, 2025 - Elsevier
The coherent structures of a turbulent axisymmetric bluff body wake are investigated based
on synchronised near-wake velocity and base pressure measurements. The proper …

Measurement technology in hypersonic wind tunnel

S Li, J Zhang, H Gao, Z Liu, X Zhang, J Lv, W Liu - Measurement, 2022 - Elsevier
Integrated airframe/propulsion aerodynamic tests in a hypersonic wind tunnel are critical for
developing an air-breathing hypersonic vehicle. Spurred by the shortcomings of traditional …

Flow control-oriented coherent mode prediction via Grassmann-kNN manifold learning

H Zhang, H Tang, BR Noack - arXiv preprint arXiv:2410.07683, 2024 - arxiv.org
A data-driven method using Grassmann manifold learning is proposed to identify a low-
dimensional actuation manifold for flow-controlled fluid flows. The snapshot flow field are …

Complex motion design and control of aircraft model suspended with cable-driven parallel robot at high AoAs

W Dong, X Wang, J Wang, Q Lin - Proceedings of the …, 2024 - journals.sagepub.com
Modern advanced fighters are characterized by the post-stall maneuverability with multi-
degree-of-freedom (M-DOF) at high angles of attack (AoAs), which is generally difficult to …