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Ground experimental method for stratospheric propeller plasma flow control
Author(s): 
Pages: 90-96
Year: Issue:  5
Journal: Experiments and Measurements in Fluid Mechanics

Keyword:  high-attitude propellerplasmaflow controlblade element theoryexperimental method;
Abstract: According to the propeller Reynolds-similarity theory and the plasma induced jet similarity theory,the method which is used to study the performance of plasma flow control of high-attitude propeller by ground experiment is put forward based on the blade element theory.First,the propeller geometry and motion parameters are converted to the inflow velocity and angle of attack on the blade element.Second,the induced plasma voltage and inflow parameters are determined based on the similarity theory in ground experiment.Finally,the collected experimental data is processed to assess the aerodynamic performance of propeller.A high-attitude20 km S1223airfoil propeller plasma flow control experiment is conducted by this method.It is found that when the propeller revolves at the speed of 300r/min under forward velocity of 5~20m/s,the thrust of propeller is increased by 6.6%~10.9% with the high voltage AC input,but at the speed of 600r/min the thrust is reduced by 0.52%~1.7%.
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