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  • AERODYNAMICS  (2)
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  • 1
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    Unknown
    Conical flow near singular rays (1974)
    In:  Other Sources
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    Publication Date: 2019-06-27
    Description: The steady flow of an ideal gas past a conical body is investigated by the method of matched asymptotic expansions, with particular emphasis on the flow near the singular ray occurring in linearized theory. The first-order problem governing the flow in this region is formulated, leading to the equation of Kuo, and an approximate solution is obtained in the case of compressive flow behind the main front. This solution is compared with the results of previous investigations with a view to assessing the applicability of the Lighthill-Whitham theories.
    Keywords: AERODYNAMICS
    Type: Journal of Fluid Mechanics; 63; Apr. 29
    Format: text
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  • 2
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    Unknown
    On the accuracy of Whitham's method (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The steady flow of an ideal gas past a conical body is studied by the method of matched asymptotic expansions and by Whitham's method in order to assess the accuracy of the latter. It is found that while Whitham's method does not yield a correct asymptotic representation of the perturbation field to second order in regions where the flow ahead of the Mach cone of the apex is disturbed, it does correctly predict the changes of the second-order perturbation quantities across a shock (the first-order shock strength). The results of the analysis are illustrated by a special case of a flat, rectangular plate at incidence.
    Keywords: AERODYNAMICS
    Type: AIAA Journal; 12; Feb. 197
    Format: text
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