Abstract
In the work features of the flow around half cylindrical body by nonequvibrium gas discharge xenon plasma with purpose to investigate changes of the bow shock wave shift with changes of the incoming plasma nonequvibrium degree, that is with change of ratio the electron temperature to the temperature of heavy component. Investigations are carried out in supersonic nozzle where half cylindrical body was place. Nozzle inlet connects with shock tube. In the process of stationary streamline before body gas discharge is switched on by means of electrodes built-in nozzle walls. Discharge parameters were chosen so that to increase electron temperature but to minimize joule heating of gas. Flow nonequvibrium degree was changed by means of value changes of gas discharge current. Flow diagnostic was made by means of Schlieren system on the base of semiconductor laser allowed to create streamline pictures at the appointed time moments after discharge. Electron temperature was obtained from experiment, gas temperature was taken from calculation.
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