Helicopter Fuselage Drag ─ Combined Computational Fluid Dynamics and Experimental Studies

Batrakov, A., Kusyumov, A., Mikhailov, S., Pakhov, V., Sungatullin, A., Valeev, M., Zherekhov, V. and Barakos, G. (2015) Helicopter Fuselage Drag ─ Combined Computational Fluid Dynamics and Experimental Studies. In: Knight, D., Lipatov, I. and Reijasse, P. (eds.) Progress in Flight Physics. EDP Sciences, pp. 21-32. ISBN 9785945881655 (doi: 10.1051/eucass/201507021)

Abstract

In this paper, wind tunnel experiments are combined with Computational Fluid Dynamics (CFD) aiming to analyze the aerodynamics of realistic fuselage con¦gurations. A development model of the ANSAT aircraft and an early model of the AKTAI light helicopter were employed. Both models were tested at the subsonic wind tunnel of KNRTU-KAI for a range of Reynolds numbers and pitch and yaw angles. The force balance measurements were complemented by particle image velocimetry (PIV) investigations for the cases where the experimental force measurements showed substantial unsteadiness. The CFD results were found to be in fair agreement with the test data and revealed some §ow separation at the rear of the fuselages. Once con¦dence on the CFD method was established, further modi¦cations were introduced to the ANSAT-like fuselage model to demonstrate drag reduction via small shape changes.

• Item Type: Book Sections
• Additional Information: Paper presented at the 5th European Conference for Aeronautics and Space Sciences (EUCASS 2013),, Munich, Germany, 01-05 Jul 2013. This work is supported by the "Leading Scientist" grant of the Russian Federation, under order 220 of the Russian Ministry of Education.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Barakos, Professor George
• Authors: Batrakov, A., Kusyumov, A., Mikhailov, S., Pakhov, V., Sungatullin, A., Valeev, M., Zherekhov, V., and Barakos, G.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• Publisher: EDP Sciences
• ISBN: 9785945881655
• Copyright Holders: Copyright © 2015 The Authors
• First Published: First published in Progress in Flight Physics - Volume 7: 21-32
• Publisher Policy: Reproduced under a Creative Commons License