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Sting

Our main pages on this subject:

1.LIVRET ROI ANGLAIS def
 Onera's innovative " sting " mounting system for wind-tunnel tests has been copied worldwide....
 
2.Technologie cryogénique - Offre technologique Onera
 Design of stings, parts and airplanes models for cryogenic wind tunnels....
 
3.Free flight under tension - ONERA's Science Pictures
 Contrary to the traditional setup where the model is fixed to the wall by some rigid device (sting, mast, or other), here it is suspended and driven in motion in the flow by nine cables, with controlled tension....
 
4.Optimal Anisotropic Mesh Adaptation for Sonic Boom Modeling
 Nasa 3D (analytic) lifting wing-body configuration [ Hunton et Al., 1973 ] Mach number 1.68 and 2.7 Lift coefficient 0, 0.08 and 0.15 Wind tunnel experimental data : the pressure signal at 3.6 or 3.1 body-lengths No data for the sting t / c= 0.05 c c / 2 t t / 2... Nasa 3D (analytic) lifting wing-body configuration [ Hunton et Al., 1973 ] Mach number 1.68 and 2.7 Lift coefficient 0, 0.08 and 0.15 Wind tunnel experimental data : the pressure signal at 3.6 or 3.1 body-lengths No data for the sting Mesh adaptation [ Alauzet and Loseille, JCP 2010 ] L2 norm of the local Mach number 12 adaptations split into 3 steps of 4 adaptations with complexity 10 000, 20 000 and 40 000 This simulation is run on a eight-processors 64 - bits Mac Pro with an Intel Core 2 chipsets with a clock speed of 2.8 GHz with 16 Gb of RAM....
 
5.Cryogenic Technology - Onera's Technological Offer
 Design of stings, parts and airplanes models for cryogenic wind tunnels....
 
6.SACSO, Active Suspension for Wind Tunnel Tests - ONERA / DCSD-EN
 For free flight, these tensions are controlled in such a way that the resultant of the forces exerted on the model by the sting can simulate the thrust of the engines....
 
7.SACSO, Active Suspension for Wind Tunnel Tests - Creation of the Demonstrator - ONERA / DCSD-EN
 The carbon fiber sting to which the nine cables are attached was linked to the skid by a false balance of the same mass and stiffness as the balance used with the real model (figure 9). These models were made in Lille by the " Model Design and Production Department " (M. Deschamps)....
 
8.S3 Wind-Tunnel with return Circuit and Continuous Operation - ONERA / DAFE-EN
 Lower wallUpstream sting. Between walls. Straight wall. Downstream sting. Start.
 
9.L1 Subsonic Wind Tunnel - ONERA / DAAP-EN
 PQR dynamic setup : sting mounting with 3 rotational degrees of freedom " XYZ " triaxial displacement system : for positioning probes in a 60 % range of the test cross section...
 
10.PDF995, Job 111
 Example of ventral sting interference effect.... Sting Interference Effects For conventional configurations, the support arrangement used for transonic testing depends on the objective of the tests : fin stings are often used for performance tests while Z and straight stings are better suited for off-design investigations....
 


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