The application discloses a kind of based on electrolytic
hydrogen bubble's PIV boundary layer flow field test
system and test method of
satellite, including integrated optical measurement module and tracer
particle generation module;Optical measurement module is located in UUV interior, including
laser emitter
assembly,
sapphire prism and the two imaging cameras of symmetrical arrangement,
laser sheet light is refracted after
sapphire prism and forms sheet light area on the outer surface of UUV;Tracer
particle generation module includes
cathode,
anode and
power supply unit,
cathode is the
platinum wire array of several
platinum wires arranged along the axis of UUV, each
platinum wire is located at different height from the wall surface of UUV;
Power supply unit selectively energizes platinum wire and independently adjusts
voltage, control the number and frequency of
hydrogen bubbles generated, realize the synchronous measurement of flow field information at different thickness positions of boundary layer.The application realizes boundary layer flow field in-situ
satellite measurement and synchronous fine measurement at different thickness positions under the condition of not changing the appearance of UUV, with the advantages of high integration, small flow field disturbance, high measurement efficiency.