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A wind-tunnel based study of helicopter tail rotor blade vortex interaction

A wind-tunnel based study of helicopter tail rotor blade vortex interaction
A wind-tunnel based study of helicopter tail rotor blade vortex interaction
The interaction of a helicopter tail rotor blade with the tip vortex system from the main rotor is a significant source of noise and, in some flight states, can produce marked reductions in control effectiveness. This paper describes a series of wind-tunnel tests to simulate tail rotor blade vortex interaction with a view to providing data for the development and validation of numerical simulations of the phenomenon.
In the experiments, which were carried out in the Argyll wind-tunnel of Glasgow University, a single-bladed rotor located in the tunnel’s contraction was used to generate the tip vortex which travelled downstream into the working section where it interacted with a model tail rotor. The tail rotor was instrumented with miniature pressure transducers that measured the aerodynamic response during the interaction. The results suggest that the rotor blade vortex interaction is similar in form to that measured at much higher spatial resolution on a fixed, non-rotating blade.
0001-9240
237-244
Coton, F.N.
10dec232-262b-435a-aa57-686ded85c898
Galbraith, R.A.M.
8837dd64-f4a0-483c-849d-a6a3a2d6dd2b
Wang, T.
6ebae192-c5d9-4506-8780-82db62caa1ca
Newman, S.J.
802c97ed-ea28-477f-8b1e-8e4f873c4281
Coton, F.N.
10dec232-262b-435a-aa57-686ded85c898
Galbraith, R.A.M.
8837dd64-f4a0-483c-849d-a6a3a2d6dd2b
Wang, T.
6ebae192-c5d9-4506-8780-82db62caa1ca
Newman, S.J.
802c97ed-ea28-477f-8b1e-8e4f873c4281

Coton, F.N., Galbraith, R.A.M., Wang, T. and Newman, S.J. (2004) A wind-tunnel based study of helicopter tail rotor blade vortex interaction. Aeronautical Journal, 108 (1083), 237-244.

Record type: Article

Abstract

The interaction of a helicopter tail rotor blade with the tip vortex system from the main rotor is a significant source of noise and, in some flight states, can produce marked reductions in control effectiveness. This paper describes a series of wind-tunnel tests to simulate tail rotor blade vortex interaction with a view to providing data for the development and validation of numerical simulations of the phenomenon.
In the experiments, which were carried out in the Argyll wind-tunnel of Glasgow University, a single-bladed rotor located in the tunnel’s contraction was used to generate the tip vortex which travelled downstream into the working section where it interacted with a model tail rotor. The tail rotor was instrumented with miniature pressure transducers that measured the aerodynamic response during the interaction. The results suggest that the rotor blade vortex interaction is similar in form to that measured at much higher spatial resolution on a fixed, non-rotating blade.

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Published date: May 2004

Identifiers

Local EPrints ID: 22888
URI: https://eprints.soton.ac.uk/id/eprint/22888
ISSN: 0001-9240
PURE UUID: 99b0c919-e2c4-4f70-8a2b-04bfc19b90b0

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Date deposited: 23 Mar 2006
Last modified: 19 Jul 2019 19:10

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Contributors

Author: F.N. Coton
Author: R.A.M. Galbraith
Author: T. Wang
Author: S.J. Newman

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