Unsteady aerodynamic modeling of a fighter wing in transonic flow

1986 ◽  
Vol 23 (8) ◽  
pp. 611-620 ◽  
Author(s):  
J. B. Malone ◽  
L. N. Sankar ◽  
W. A. Sotomayer
Keyword(s):  
Transonic Flow ◽  
Aerodynamic Modeling ◽  
Unsteady Aerodynamic

Surrogate Unsteady Aerodynamic Modeling with Autoencoders and LSTM Networks

2022 ◽  
Author(s):  
Huseyin E. Tekaslan ◽  
Yusuf Demiroglu ◽  
Melike Nikbay
Keyword(s):  
Aerodynamic Modeling ◽  
Unsteady Aerodynamic

Unsteady aerodynamic modeling and control of the wind turbine with trailing edge flap

2018 ◽  
Vol 10 (6) ◽  
pp. 063304 ◽  
Author(s):  
Wenguang Zhang ◽  
Yifeng Wang ◽  
Ruijie Liu ◽  
Haipeng Liu ◽  
Xu Zhang
Keyword(s):  
Wind Turbine ◽  
Trailing Edge ◽  
Modeling And Control ◽  
Aerodynamic Modeling ◽  
Unsteady Aerodynamic ◽  
Trailing Edge Flap ◽  
And Control

Experimental Investigation of the Aerodynamic Stability of an Annular Compressor Cascade Performing Tuned Pitching Oscillations in Transonic Flow

1999 ◽  
Author(s):  
H. Hennings ◽  
J. Belz
Keyword(s):  
Transonic Flow ◽  
Suction Side ◽  
Test Facility ◽  
Feedback Signal ◽  
Detailed Knowledge ◽  
Compressor Cascade ◽  
Aerodynamic Stability ◽  
Pressure Transducers ◽  
Unsteady Pressure ◽  
Unsteady Aerodynamic

A prerequisite for aeroelastic stability investigations on vibrating compressor cascades is the detailed knowledge of the unsteady aerodynamic loads acting on the blades. In order to obtain precise insight into the aerodynamic damping of a vibrating blade assembly, a basic experiment was performed where unsteady pressure distributions were measured for subsonic and transonic flow conditions. The experiments were performed on a non-rotating, two-dimensional section of a compressor cascade in an annular test facility. The cascade consists of 20 blades (NACA3506 profile) mounted on elastic spring suspensions. In order to measure the unsteady pressure distribution, the cascade was set to tuned pitching oscillations (traveling wave modes). Each blade was driven to controlled harmonic torsional motions around midchord by a magnetic excitation system and by inductive displacement probes which measure the feedback signal of the motion. Steady and unsteady pressures were measured by steady pressure taps and piezo-electric pressure transducers, respectively. The measurement of the unsteady aerodynamic response to a shock vibrating on the suction side of the blades was enabled by a dense spacing of transducers in this region. The global aerodynamic stability is assessed by a damping coefficient evaluated from the out-of-phase parts of the unsteady moment coefficients and by the contributions from the local work coefficient, using the measured pressure data.

Unsteady aerodynamic modeling and control of pusher and tilt-rotor quadplane configurations

2019 ◽  
Vol 94 ◽  
pp. 105421 ◽  
Author(s):  
Yunus Govdeli ◽  
Sheikh Moheed Bin Muzaffar ◽  
Raunak Raj ◽  
Basman Elhadidi ◽  
Erdal Kayacan
Keyword(s):  
Modeling And Control ◽  
Tilt Rotor ◽  
Aerodynamic Modeling ◽  
Unsteady Aerodynamic ◽  
And Control

Continuous-time state-space unsteady aerodynamic modeling based on boundary element method

2012 ◽  
Vol 36 (5) ◽  
pp. 789-798 ◽  
Author(s):  
Meysam Mohammadi-Amin ◽  
Behzad Ghadiri ◽  
Mostafa M. Abdalla ◽  
Hassan Haddadpour ◽  
Roeland De Breuker
Keyword(s):  
Boundary Element Method ◽  
State Space ◽  
Boundary Element ◽  
Continuous Time ◽  
Aerodynamic Modeling ◽  
Unsteady Aerodynamic ◽  
Element Method
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