Aerodynamic drag prediction of helicopter fuselage

A. Filippone; J. A. Michelsen

doi:10.2514/2.2765

Aerodynamic drag prediction of helicopter fuselage

Research output: Contribution to journal › Article › peer-review

Abstract

A summary of investigations into predictions of the aerodynamic drag of a modular helicopter fuselage (Eurocopter Dauphin DGV 200) is presented. Drag results are shown for two different configurations, Reynolds numbers up to 6 × 107 (flight conditions), with and without support structure of the wind-tunnel model. Numerical accuracy is investigated for one test case using different computational grids. The results are compared with wind-tunnel measurements and show good agreement with the reference data when the influence of the wind-tunnel strut is taken into account. The computational fluid dynamics model developed consists of a parallel multiblock, multigrid Reynolds-averaged Navier-Stokes code and a three-dimensional hyperbolic grid generator. Block-structured grids are generated from a CAD base. From a numerical point of view, convergence was achieved quickly in all of the cases computed, thus showing efficiency and low CPU cost.

Original language	English
Pages (from-to)	326-333
Number of pages	7
Journal	Journal of Aircraft
Volume	38
Issue number	2
DOIs	https://doi.org/10.2514/2.2765
Publication status	Published - Mar 2001

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title = "Aerodynamic drag prediction of helicopter fuselage",

abstract = "A summary of investigations into predictions of the aerodynamic drag of a modular helicopter fuselage (Eurocopter Dauphin DGV 200) is presented. Drag results are shown for two different configurations, Reynolds numbers up to 6 × 107 (flight conditions), with and without support structure of the wind-tunnel model. Numerical accuracy is investigated for one test case using different computational grids. The results are compared with wind-tunnel measurements and show good agreement with the reference data when the influence of the wind-tunnel strut is taken into account. The computational fluid dynamics model developed consists of a parallel multiblock, multigrid Reynolds-averaged Navier-Stokes code and a three-dimensional hyperbolic grid generator. Block-structured grids are generated from a CAD base. From a numerical point of view, convergence was achieved quickly in all of the cases computed, thus showing efficiency and low CPU cost.",

author = "A. Filippone and Michelsen, {J. A.}",

year = "2001",

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AU - Filippone, A.

AU - Michelsen, J. A.

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AB - A summary of investigations into predictions of the aerodynamic drag of a modular helicopter fuselage (Eurocopter Dauphin DGV 200) is presented. Drag results are shown for two different configurations, Reynolds numbers up to 6 × 107 (flight conditions), with and without support structure of the wind-tunnel model. Numerical accuracy is investigated for one test case using different computational grids. The results are compared with wind-tunnel measurements and show good agreement with the reference data when the influence of the wind-tunnel strut is taken into account. The computational fluid dynamics model developed consists of a parallel multiblock, multigrid Reynolds-averaged Navier-Stokes code and a three-dimensional hyperbolic grid generator. Block-structured grids are generated from a CAD base. From a numerical point of view, convergence was achieved quickly in all of the cases computed, thus showing efficiency and low CPU cost.

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DO - 10.2514/2.2765

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VL - 38

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EP - 333

JO - Journal of Aircraft

JF - Journal of Aircraft

IS - 2

ER -

Aerodynamic drag prediction of helicopter fuselage

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