Experimental Testing and Numerical Simulations of Shrouded Plug-Nozzle Flowfields

The static tests of Purdue experimental shrouded plug nozzle which is a sub-scale model of the Gulfstream concept without the bypass exhaust stream is the focus of current computational and experimental effort. The static tests brought to light unsteady characteristics related shock/shock and shock/boundary layer interactions. Through a series of steady and unsteady axisymmetric computations the flow structure and physics were studied and the computational results were found to be in good agreement with experimental observations. Primarily flow structures, flow regimes and static pressure distributions were computationally studied and analyzed in conjunction with the experiments.

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