Modeling the increase in aerodynamic efficiency for a thick (37.5% chord) airfoil with slot suction in vortex cells with allowance for the compressibility effect

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• 作者：S. A. Isaev (1)
  P. A. Baranov (1)
  A. G. Sudakov (1)
  A. M. Ermakov (2)
  
  1. St. Petersburg State University of Civil Aviation ; St. Petersburg ; 196210 ; Russia
  2. Kazan National Research Technical University ; Kazan ; Tatarstan ; 420111 ; Russia
  
• 刊名：Technical Physics Letters
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：41
• 期：1
• 页码：76-79
• 全文大小：197 KB
• 参考文献：1. A. I. Savitsky, L. N. Schukin, V. G. Karelin, et al., US Patent no. 5417391 (May 23, 1995); preceded by RF Patent no. 2015941 (1991).
  Ermishin, A V, Isaev, S A eds. (2003) Control of the Flow past Bodies with Vortex Cells as Applied to Integral-Layout Flight Vehicles (Numerical and Physical Modeling). MGU, Moscow
  2. Donelli, R, Ionelli, P, Chernyshenko, S, Iollo, A, Zannetti, I (2009) AIAA J. 47: pp. 451 CrossRef
  3. Isaev, S A, Baranov, P A, Vatin, N I, Zhukova, Yu V, Sudakov, A G (2014) Tech. Phys. Lett. 40: pp. 673 CrossRef
  4. Isaev, S A, Sudakov, A G, Baranov, P A, Mordinsky, N A (2007) J. Eng. Phys. Thermophys. 80: pp. 1193 CrossRef
  5. Isaev, S A, Baranov, P A, Sudakov, A G, Usachov, A E (2014) Tech. Phys. Lett. 40: pp. 417 CrossRef
  6. Isaev, S A, Baranov, P A, Usachov, A E (2013) Multiblock Computational Technologies in VP2/3 Aerothermodynamics Program Package. Lambert Academic Publishing, Saarbrucken
  7. F. R. Menter, M. Kuntz, and R. Langtry, in / Turbulence, Heat and Mass Transfer 4, Ed. by K. Hanjalic, Y. Nogano, and M. Tummers (Begell House Inc., 2003).
  8. Isaev, S A, Baranov, P A, Zhukova, Yu V, Usachov, A E, Kharchenko, V B (2014) J. Eng. Phys. Thermophys. 87: pp. 1002 CrossRef
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Mechanics, Fluids and Thermodynamics
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1090-6533

文摘

The Reynolds equations closed using the Menter shear-stress-transfer model modified with allowance for the curvature of flow lines have been numerically solved using multiblock computational technologies. The obtained solution has been used to analyze subsonic flow past a thick (37.5% chord) airfoil with slot suction in circular vortex cells intended for the Ecology and Progress (Ekologiya i Progress, EKIP) aircraft project in comparison to a distributed (from the central body surface) suction at fixed values of the total volume flow rate (0.02121) and Reynolds number (105) in a range of Mach numbers from 0 to 0.4. This analysis revealed a significant (up to tenfold) decrease in the bow drag (determined with allowance for the energy losses) and a large (by an order of magnitude) increase in the aerodynamic efficiency of the thick airfoil containing vortex cells with slot suction, which reached up to 160.