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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
11.7 Consider the flow over a circular cylinder; the incompressible flow over such a cylinder is discussed in Section 3.13. Consider also the flow over a sphere; the incompressible flow over a sphere is described in Section 6.4. The subsonic compressible flow over both the cylinder and the sphere is qualitatively similar but quantitatively different from their incompressible counterparts. Indeed, because of the “bluntness” of these bodies, their critical Mach numbers are relatively low. In particular:
For a cylinder: Mcr = 0.404 For a sphere: Mcr = 0.57
Explain on a physical basis why the sphere has a higher Mcr than the cylinder.
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