Active flow control strategies, such as oscillatory blowing / suction, have proved their efficiency to modify flow characteristics for various purposes (e.g. skin friction reduction, separation delay, etc.) in case of rather simple configurations. To extend this approach to industrial cases, the simulation of a large number of devices at real...
-
November 20, 2014 (v1)PublicationUploaded on: March 25, 2023
-
December 2013 (v1)Report
A synthetic jet is an oscillatory jet, with zero time-averaged mass-flux, used to manipulate boundary layer characteristics for flow control applications such as drag reduction, detachment delay, etc. The objective of this work is the comparison and assessment of some numerical models of synthetic jets, in the framework of compressible flows...
Uploaded on: December 3, 2022 -
September 2012 (v1)Conference paper
This study deals with the use of optimization algorithms to determine efficient param- eters of flow control devices. To improve the performance of systems characterized by detached flows and vortex shedding, the use of flow control devices such as oscillatory jets, are intensively studied, using numerical as well as experimental methods....
Uploaded on: December 3, 2022 -
December 2013 (v1)Report
A synthetic jet is an oscillatory jet, with zero time-averaged mass-flux, used to manipulate boundary layer characteristics for flow control applications such as drag reduction, detachment delay, etc. The objective of this work is the comparison and assessment of some numerical models of synthetic jets, in the framework of compressible flows...
Uploaded on: October 11, 2023 -
July 2014 (v1)Conference paper
In this study, di fferent turbulence closures are compared for the prediction of detached flows over a backward facing step, including a flow control device based on oscillatory suction and blowing. An automated optimization of the control parameters (frequency and amplitude) is carried out for the di fferent closures, to assess the ability of...
Uploaded on: December 3, 2022 -
March 30, 2015 (v1)Conference paper
Active flow control has been a growing research area for the last decades, since this approach demonstrated its ability to improve aerodynamic performance, for a large range of applications. It is especially appealing in case of separated flows, for which natural instability phenomena can be efficiently exploited to manipulate flow...
Uploaded on: March 25, 2023 -
June 24, 2013 (v1)Conference paper
The simulation of turbulent flows including active flow control devices, such as synthetic jets, is still a difficult task. Numerical parameters (grid size, time step, etc.) may have a significant influence on the result, while the choice of the turbulence closure is often critical. In this context, we investigate the use of a Kriging-based...
Uploaded on: December 2, 2022 -
June 24, 2013 (v1)Conference paper
The simulation of turbulent flows including active flow control devices, such as synthetic jets, is still a difficult task. Numerical parameters (grid size, time step, etc.) may have a significant influence on the result, while the choice of the turbulence closure is often critical. In this context, we investigate the use of a Kriging-based...
Uploaded on: October 11, 2023 -
June 2014 (v1)Journal article
This study deals with the use of optimization algorithms to determine efficient parameters of flow control devices. To improve the performance of systems characterized by detached flows and vortex shedding, the use of flow control devices such as oscillatory jets are intensively studied. However, the determination of efficient control...
Uploaded on: March 25, 2023 -
July 2014 (v1)Conference paper
In this study, di fferent turbulence closures are compared for the prediction of detached flows over a backward facing step, including a flow control device based on oscillatory suction and blowing. An automated optimization of the control parameters (frequency and amplitude) is carried out for the di fferent closures, to assess the ability of...
Uploaded on: October 11, 2023 -
January 2016 (v1)Journal article
Active flow control strategies, such as oscillatory blowing / suction, have proved their efficiency to modify flow characteristics for various purposes (e.g. skin friction reduction, separation delay, etc) in case of rather simple configurations. To extend this approach to industrial cases, the simulation of a large number of devices at real...
Uploaded on: February 28, 2023 -
March 2012 (v1)Conference paper
In this study, we investigate the use of a modern software architecture in the context of CFD, which allows the user to interact with the computation, by modifying physical or numerical parameters during the computation and visualize the impact on the flow. Our objective is to evaluate the interest of such a software architecture and measure...
Uploaded on: December 3, 2022