Aerodynamic optimization of a generic light truck under unsteady conditions using gradient-enriched machine learning control
R Semaan, P Oswald, GY Cornejo Maceda… - Experiments in …, 2023 - Springer
We present the first machine-learned multiple-input multiple-output aerodynamic feedback
control under varying operating conditions. Closed-loop control is relevant to many fluid …
control under varying operating conditions. Closed-loop control is relevant to many fluid …
Experimental and numerical analysis of the bi-stable turbulent wake of a rectangular flat-backed bluff body
The wake dynamics of a rectangular flat-backed bluff body is studied using both the wind
tunnel experiment and Improved Delayed Detached Eddy Simulation (IDDES) at Re= 9.2× …
tunnel experiment and Improved Delayed Detached Eddy Simulation (IDDES) at Re= 9.2× …
Assessment of LES, IDDES and RANS approaches for prediction of wakes behind notchback road vehicles
Abstract The capability of Large Eddy Simulations (LES), Improved Delayed Detached Eddy
Simulations (IDDES) and Reynolds-Averaged Navier–Stokes Equations (RANS) to predict …
Simulations (IDDES) and Reynolds-Averaged Navier–Stokes Equations (RANS) to predict …
Effect of base blowing by a large-scale fluidic oscillator on the bistable wake behind a flat-back Ahmed body
The dynamics of the wake behind a flat-back Ahmed body are modified using a large-scale
fluidic oscillator, aiming at drag reduction and the reflectional symmetry breaking (RSB) …
fluidic oscillator, aiming at drag reduction and the reflectional symmetry breaking (RSB) …
Wake transitions and steady-instability of an Ahmed body in varying flow conditions
Y Fan, V Parezanović, O Cadot - Journal of Fluid Mechanics, 2022 - cambridge.org
The paper investigates experimentally the flow past a flat-back, taller than wide Ahmed body
having rectangular base aspect ratio defined from regions where the mean lateral force …
having rectangular base aspect ratio defined from regions where the mean lateral force …
Numerical investigation of the wake bi-stability behind a notchback Ahmed body
Large-eddy simulations are used to investigate the origin of the wake asymmetry and
symmetry behind notchback Ahmed bodies. Two different effective backlight angles,, are …
symmetry behind notchback Ahmed bodies. Two different effective backlight angles,, are …
Research on spectral estimation parameters for application of spectral proper orthogonal decomposition in train wake flows
Coherent structures in surrounding flows around ground vehicles play an important role in
characterizing their aerodynamic features. However, due to restrictions of traditional reduced …
characterizing their aerodynamic features. However, due to restrictions of traditional reduced …
Characteristics of flow past elongated bluff bodies with underbody gaps due to varying inflow turbulence
An experimental study was performed on two elongated bluff bodies with underbody gaps, a
square-back Ahmed body and a cuboid, to investigate the effects of geometry and the …
square-back Ahmed body and a cuboid, to investigate the effects of geometry and the …
Effect of the free-stream turbulence on the bi-modal wake dynamics of square-back bluff body
The effect of a free-stream turbulence intensity level on the wake dynamics of a square-back
Ahmed body is modeled using the improved delayed detached eddy simulation at Re= 9.6× …
Ahmed body is modeled using the improved delayed detached eddy simulation at Re= 9.6× …
Recent advances in wake dynamics and active drag reduction of simple automotive bodies
Z Yu, Z Bingfu - Applied Mechanics Reviews, 2021 - asmedigitalcollection.asme.org
This is a compendium of recent progresses in the development of wake dynamics and active
drag reduction (DR) of three-dimensional (3D) simple automotive models, largely focused …
drag reduction (DR) of three-dimensional (3D) simple automotive models, largely focused …