Publications associées à Voilure supercritique

All you need is time to generalise the Goman-Khrabrov dynamic stall model

Karen Ann J Mulleners, Fatma Ayancik Cinoglu

Dynamic stall on airfoils negatively impacts their aerodynamic performance and can lead to structural damage. Accurate prediction and modelling of the dynamic stall loads are crucial for a more robust design of wings and blades that operate under unsteady ...

CAMBRIDGE UNIV PRESS2022

Experimental quantification of unsteady leading-edge flow separation

Karen Ann J Mulleners, Julien Dominique Claude Deparday

We propose here a method to experimentally quantify unsteady leading-edge flow separation on aerofoils with finite thickness. The methodology relies on the computation of a leading-edge suction parameter based on measured values of the partial circulation ...

2022

Femtosecond laser-shockwave induced densification in fused silica

Yves Bellouard, Pieter Vlugter, Arunkrishnan Radhakrishnan, Julien Gilles Edgar Gateau

A tightly focused femtosecond laser-beam in the non-ablative regime can induce a shockwave sufficiently intense to reach local pressures in the giga-Pascal range or more. In a single beam configuration, the location of the highest-pressure zone is nested w ...

2022

The dynamics and timescales of static stall

Karen Ann J Mulleners, Sébastien Le Fouest, Julien Dominique Claude Deparday

Airfoil stall plays a central role in the design of safe and efficient lifting surfaces. We typically distinguish between static and dynamic stall based on the unsteady rate of change of an airfoil’s angle of attack. Despite the somewhat misleading denotat ...

2021

A bioinspired Separated Flow wing provides turbulence resilience and aerodynamic efficiency for miniature drones

Stefano Mintchev, Matteo Di Luca

Small-scale drones have enough sensing and computing power to find use across a growing number of applications. However, flying in the low-Reynolds number regime remains challenging. High sensitivity to atmospheric turbulence compromises vehicle stability ...

AMER ASSOC ADVANCEMENT SCIENCE2020

Shockwave identification and critical parameter estimation using a detailed dataset from a swarm of drones

Nikolaos Geroliminis, Emmanouil Barmpounakis, Nicolas Sébastien Richter

In the era of big data, new transportation-related concepts and methodologies need to be proposed for understanding how congestion propagates. pNEUMA, a unique dataset that was acquired during a first-of-its-kind experiment with a swarm of drones over a de ...

2020

On the physical mechanism of tip vortex cavitation hysteresis

Mohamed Farhat, Matthieu Dreyer, Ali Amini, Martino Reclari

Inception and desinence thresholds of tip vortex cavitation (TVC), generated by an elliptical NACA 16-020 hydrofoil, are measured at different flow conditions for various gas contents. It is observed that TVC often disappears at cavitation indices signific ...

SPRINGER2019

Critical evolution of leading edge suction during dynamic stall

Karen Ann J Mulleners, Julien Dominique Claude Deparday

Dynamic stall dominates the aerodynamic performance, the robustness, and the wake dynamics of vertical axis wind turbines. To better assess the dynamic stall onset and its associated unsteady effects, this paper analyzes experimentally the evolution of the ...

IOP PUBLISHING LTD2018

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Voilure supercritique

All you need is time to generalise the Goman-Khrabrov dynamic stall model

Experimental quantification of unsteady leading-edge flow separation

Femtosecond laser-shockwave induced densification in fused silica

Effect of femtosecond laser-induced high pressure on fused silica polymorphism

The dynamics and timescales of static stall

A bioinspired Separated Flow wing provides turbulence resilience and aerodynamic efficiency for miniature drones

Physical Mechanism and Flow Control of Tip Vortex Cavitation

Shockwave identification and critical parameter estimation using a detailed dataset from a swarm of drones

On the physical mechanism of tip vortex cavitation hysteresis

Critical evolution of leading edge suction during dynamic stall

Graph Chatbot

Chattez avec Graph Search

Effect of femtosecond laser-induced high pressure on fused silica polymorphism

Femtosecond laser-shockwave induced densification in fused silica

Physical Mechanism and Flow Control of Tip Vortex Cavitation

On the physical mechanism of tip vortex cavitation hysteresis

All you need is time to generalise the Goman-Khrabrov dynamic stall model

Shockwave identification and critical parameter estimation using a detailed dataset from a swarm of drones

Critical evolution of leading edge suction during dynamic stall

Experimental quantification of unsteady leading-edge flow separation

A bioinspired Separated Flow wing provides turbulence resilience and aerodynamic efficiency for miniature drones

The dynamics and timescales of static stall