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 |
| Division/Department: | Experimental Aerodynamics Division, Experimental Aerodynamics Division |
| Depositing User: | Mrs Manoranjitha M D |
| Date Deposited: | 07 Mar 2006 |
| Last Modified: | 24 May 2010 09:40 |
| URI: | http://nal-ir.nal.res.in/id/eprint/1072 |
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