The first step of this work is to verify the accuracy of the analysis code. The shock waves from the two cone-bike centerbody focus at the cowl leading edge. Figure 5 shows the detailed shock wave structure in the region of the ble ed slot and throat. This work is in progress. This problem incorporates many elements of automated optimal design including flow solvers, performance evaluations, optimizations, geometry modeling and grid generation.
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Abrasive Nozzle Abrasive nozzles have application in the paint removal industry. It has been noticed, in field use, that the performance of these nozzles improves as they wear out. This suggests that the shapes of nozzles being used in the industry are not optimal. A computer model for flow of abrasive particles has been developed to predict particle energy, momentum and exit velocity. This model will be used to get an optimal nozzle shape for given operating conditions and abrasive grit size.