Frequency response of the unsteady separating boundary layers in a compressor cascade

Sep 2026

Influence of boundary layer suction on unsteady flow field of a compressor cascade

Abstract The aspirated compressor is one of the effective technological approaches for breaking through the loading limits of conventional compressors. In this study, unsteady flow field simulations with boundary layer suction were conducted for a compressor cascade exhibiting trailing edge separation. The numerical re...

Ruo-Chi Pan, Zhi-Yuan Cao, Yang Yue et al. · International Journal of Tur... · 0 citations

Open access Aug 2026

Swept-wing boundary-layer receptivity to free-stream vortical disturbances

Abstract Content of image described in text. Direct numerical simulations are performed to investigate the receptivity of a swept-wing boundary layer to unsteady free-stream vortical disturbances in the nose region of the airfoil. An infinite wing with a sweep angle of 35 Superscript ring ∘ $^\circ$ and at free-stream...

Zhengfei Guo, M. Kloker · Journal of Fluid Mechanics · 0 citations

Conference Open access 2026

Numerical Mesh Sensitivity Study of Flow-induced Acoustic Resonance in Closed Side-Branches

Flow-induced acoustic resonance in closed side branches represents an important aeroacoustic phenomenon occurring in many industrial piping systems. Since the prediction of such coupled hydrodynamic–acoustic behavior is highly sensitive to numerical discretization, the present study investigates the influence of mesh r...

Adam Benčat, Marek Mlkvik, B. Knížat et al. · MATEC Web of Conferences · 0 citations

Open access Feb 2025

Phase-based analysis and control of a supersonic turbulent cavity flow

Abstract Content of image described in text. We present a phase-based framework for reducing the pressure fluctuations within a spanwise-periodic supersonic turbulent cavity flow with an incoming free-stream Mach number of 1.4 and a depth-based Reynolds number of 10 Superscript 4 104 $10^4$ . Open cavity flows exhibit...

Vedasri Godavarthi, Yoji Kawamura, L. Ukeiley et al. · Journal of Fluid Mechanics · 4 citations

Oct 2026

Vortex instability induced by blade-attached vortex generators in a supersonic compressor cascade under downstream throttling

The unsteady flow related to shockwave/boundary layer interaction is one of the key factors leading to compressor instability, so it is important to develop an effective flow control method. In this study, based on three-dimensional numerical simulation, the control mechanism of blade-attached vortex generator (BVG) on...

Tian-Chu Song, Zhong-Yi Wang, Hai-Meng Zhou et al. · The Physics of Fluids · 0 citations

Preprint Sep 2026

Mechanisms of transonic buffet over supercritical airfoils revealed by direct numerical simulations

We use direct numerical simulations to study the turbulent transonic flow over a supercritical airfoil, spanning the transition from stable conditions to fully developed buffet at chord-based Reynolds numbers of $3\times10^5$ and $6\times10^5$. The Reynolds number determines the incoming boundary-layer state, thereby a...

G. Soldati, Hang Song, S. Pirozzoli et al. · 0 citations