Abstract
Numerical analysis of the hot oxygen rich exhaust gas flow field during the ground test of engine subsystem is carried out in the present paper. The effect of water injection on the hot gas plume and its impingement velocity on the test bay is studied. The effect of the wind conditions such as velocity and directions on the oxygen concentration in the test facility is also studied. It is found that a single water jet injected at 500kg/s with 55m/s velocity is able to reduce the impingement velocity of the hot gas from 250m/s to 75m/s. Analysis shows that the wind up to 12m/s does not have significant effect on the oxygen concentration in the test facility. The wind blowing opposite to the hot gas flow results in oxygen accumulation at ground level of the test facility.
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