The hypersonic merged layer flows on thin wedges with half angles of 2 and 5 degrees were analyzed by obtaining the solutions of the NAVIERSTOKES equations with the semi-implicit finitedifference technique. The calculated flow fields with M
∞=20 and R
ex∞ ranging from 5, 000 to 20, 000 showed that the NAVIER-STOKES equations can describe the merged layer flow qualitatively well, while the merging effect seems to appear nearer the leading edge than in actual flows.
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