Investigation of flow field on a hammerhead nose configuration at transonic speeds AIAA-91-1711

Ahmed, Sajeer and Selvarajan, S (1991) Investigation of flow field on a hammerhead nose configuration at transonic speeds AIAA-91-1711. In: 22nd Fluid Dynamics, Plasma Dynamics amp; Lasers Conference, 24-26 Jun 1991, Honolulu, Hawaii.

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Abstract

Flow field at transonic Mach numbers of a hammerhead13; nose configuration with boat tail an les in13; face flow visualisation and surface pressure measurements.13; Surface steady pressure data shows presence13; of a shock on the cylindrical portion of the body that13; shifts downstream with increase in Mach number and13; boat tail angle. Maximum travel of the shock wave is13; observed at boat tail angle of 90 degrees. Analysis of13; unsteady pressure data shows evidence of shock oscillations13; with multiple frequency content at M=0.9.13; Results of the tests on a scaled model in two different13; tunnels show that the oscillations are due to the13; nature of unsteadiness in the tunnel. Variation of the13; boat tail angle does not appear to alter the unsteadiness13; in the cylindrical region at transonic speeds.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Mach number;transonic speed13;
Subjects:	AERONAUTICS > Aircraft Design, Testing & Performance
Depositing User:	Mrs Manoranjitha M D
Date Deposited:	07 Mar 2006
Last Modified:	24 May 2010 04:10
URI:	http://nal-ir.nal.res.in/id/eprint/1072

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