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Jitterin bow shock stand-off distance

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Old   June 21, 2006, 07:43
Default Jitterin bow shock stand-off distance
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i'm using a 2D Euler shock fitting method to compute the flow around a blunt hypersonic forebody. For some grids, the shock stand-off distance is not monotonically increasing with increasing distance from the stagnation point, but jittering from one node to the next. The solution has convergered! Following data will explain best:

Distance X Y (Flow direction)

form the


0.38387058 0.06252239 -0.99804356

0.37291371 0.15529623 -0.98804356

0.39941824 0.25082344 -0.96804356

0.38611675 0.34648209 -0.93804356

0.41730489 0.43990258 -0.89804356

0.45436577 0.52992732 -0.84804356

0.43276034 0.61562137 -0.78804356


The jittering in stand-off distance disappears with downstream. Anyone any suggestions?



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