On the Attached Curved Shock in Front of an Open-Nosed Axially Symmetrical Body

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概要

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• The flow near the nose over an open-nosed axially symmetrical body placed in a uniform flow of sufficiently high Mach number is considered. The equation valid near the nose is derived by employing a method of perturbation. From the solution of this equation, the flow near the nose can be determined and further a formula relating the initial curvature K_w of the shock to the curvature K_s of the body surface in a meridian plane is derived in the form [numerical formula], where (K_w/K_s)_p is the corresponding ratio for the cylindrical body having the same profile as that of the body of revolution, a the angle of inclination of the shock to the uniform flow, w the initial slope of the body, K_N the curvature of the nose in the plane perpendicular to the axis of symmetry and U/a_0 the Mach number of the flow immediately behind the shock at the nose. In this formula the curvature K_w is positive for the shock which is concave upwards and the curvature K_s of the surface also is positive under this condition. Finally the conical shock and the attached shock of a sharp-nosed body are discussed on the basis of this formula. In the axially symmetrical case it is pointed out that the curvature of the shock exhibits a singular behaviour at the Crceeo point as in the two dimensional case.

• 社団法人日本物理学会の論文
• 1954-10-25

著者

• Oguchi Hakuro

  Institute Of Science And Technology University Of Tokyo

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• On the Attached Curved Shock in Front of an Open-Nosed Axially Symmetrical Body

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