Development of a Transonic Wind Tunnel Test Bed for MEMS Flow Control Actuators and Sensors

2009 ◽  
Author(s):  
Jonathan Potts ◽  
Ian Lunnon ◽  
William Crowther ◽  
Graham Johnson ◽  
Martyn Hucker ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Flow Control ◽  
Wind Tunnel Test ◽  
Test Bed ◽  
Transonic Wind Tunnel

Videogrammetric Measurement for Model Displacement in Wind Tunnel Test

2011 ◽  
Vol 130-134 ◽  
pp. 103-107 ◽  
Author(s):  
Zheng Yu Zhang ◽  
Shui Liang Wang ◽  
Yan Sun
Keyword(s):  
Image Processing ◽  
Wind Tunnel ◽  
Wind Tunnel Test ◽  
Accurate Data ◽  
Exterior Orientation ◽  
Wind Tunnel Tests ◽  
Key Techniques ◽  
Transonic Wind Tunnel

It is crucial measuring position and attitude of model to gain the precise and accurate data in wind tunnel tests. The model displacement videogrammetric measurement (MDVM) system and its key techniques such as the exterior orientation with big rotation angles and large-overlap, mark points, image processing and calibration based on the known distances are therefore presented. The practice example in Asia's largest (2.4m) transonic wind tunnel has demonstrated the MDVM system and its key techniques are correct and feasible, and they have application value.

scholarly journals Observations on some transonic wind tunnel test results of a standard model with a T-tail

2016 ◽  
Vol 66 (4) ◽  
pp. 34-39 ◽  
Author(s):  
Dijana Damljanovic ◽  
Djordje Vukovic ◽  
Aleksandar Vitic ◽  
Jovan Isakovic ◽  
Goran Ocokoljic
Keyword(s):  
Wind Tunnel ◽  
Standard Model ◽  
Wind Tunnel Test ◽  
Test Results ◽  
Transonic Wind Tunnel

Suppression of background noise in a transonic wind-tunnel test section

AIAA Journal ◽  
1975 ◽  
Vol 13 (11) ◽  
pp. 1467-1471 ◽  
Author(s):  
L. A. Schutzenhofer ◽  
P. W. Howard
Keyword(s):  
Wind Tunnel ◽  
Test Section ◽  
Background Noise ◽  
Wind Tunnel Test ◽  
Transonic Wind Tunnel

Transonic Wind Tunnel Test of Wing Oscillating in Pitch

2018 ◽  
Author(s):  
Guilherme R. Begnini ◽  
Carlos A. Bones ◽  
Cleber Spode
Keyword(s):  
Wind Tunnel ◽  
Wind Tunnel Test ◽  
Transonic Wind Tunnel

Fluidic actuators for separation control at the engine/wing junction

2017 ◽  
Vol 89 (5) ◽  
pp. 709-718 ◽  
Author(s):  
Philipp Schloesser ◽  
Michael Meyer ◽  
Martin Schueller ◽  
Perez Weigel ◽  
Matthias Bauer
Keyword(s):  
Wind Tunnel ◽  
Flow Control ◽  
Flow Separation ◽  
Mass Flux ◽  
Large Scale ◽  
Active Flow Control ◽  
Wind Tunnel Test ◽  
Local Flow ◽  
Content Type ◽  
Active Flow

Purpose The area behind the engine/wing junction of conventional civil aircraft configurations with underwing-mounted turbofans is susceptible to local flow separation at high angles of attack, which potentially impacts maximum lift performance of the aircraft. This paper aims to present the design, testing and optimization of two distinct systems of fluidic actuation dedicated to reduce separation at the engine/wing junction. Design/methodology/approach Active flow control applied at the unprotected leading edge inboard of the engine pylon has shown considerable potential to alleviate or even eliminate local flow separation, and consequently regain maximum lift performance. Two actuator systems, pulsed jet actuators with and without net mass flux, are tested and optimized with respect to an upcoming large-scale wind tunnel test to assess the effect of active flow control on the flow behavior. The requirements and parameters of the flow control hardware are set by numerical simulations of project partners. Findings The results of ground test show that full modulation of the jets of the non-zero mass flux actuator is achieved. In addition, it could be shown that the required parameters can be satisfied at design mass flow, and that pressure levels are within bounds. Furthermore, a new generation of zero-net mass flux actuators with improved performance is presented and described. This flow control system includes the actuator devices, their integration, as well as the drive and control electronics system that is used to drive groups of actuators. Originality/value The originality is given by the application of the two flow control systems in a scheduled large-scale wind tunnel test.

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