Abstract
In order to analyze a wall jet formed on a flat plate on which a supersonic jet impinges, an underexpanded jet issuing from a curved slit nozzle is experimentally and numerically examined. The curved slit nozzle consists of two tubes of the same diameter. The end of one of the tubes is faced to that of the other tube, two ends being placed a small distance apart. The flow field around the nozzle is experimentally visualized using the method of shadowgraph and Schlieren. The numerical calculation is carried out by means of a TVD scheme for different outer diameters of tubes. The good agreement was found between the experiment and the calculation regarding the location of the shock rings. Moreover, the effect of the tube diameters on the cell structure of the radial jet is discussed.
