Drag and Heat Reduction Performance for an Equal Polygon Opposing Jet
Publication: Journal of Aerospace Engineering
Volume 30, Issue 1
Abstract
An equal polygon opposing jet can withstand huge wave drag and serious aerodynamic heating in hypersonic flow conditions. The opposing jet is able to change the flow field structure, and then it improves the aerodynamic characteristic of the hypersonic vehicle. In order to get more information about the flow field characteristics of the opposing jet, the schemes with equal polygons for the opposing jet were designed and their properties with different polygons have been investigated numerically in the paper. Also, the numerical method has been validated against the available experimental data in the open literature. The obtained results show that the drag-reduction performance is best when the number of jet angles () is 7, and its value reaches 26.4%. At the same time, its wall maximum heat flux is the smallest and the performance for heat protection is the best. Moreover, the maximum heat flux can be decreased by 60.6%. has a slight influence on the position of the shock wave. When is big enough, the difference for the flow field between the novel scheme and circle jet is very small because of the influence of the three-dimensional flow. But its practicability is not good. When is not less than 4, the maximum heat flux sits in the datum line of the jet angle. The contour for wall heat flux owns the characteristics of the polygon. The flow control can work when is an odd number.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors would like to express their thanks for the support from the Science Foundation of the National University of Defense Technology (Grant No. JC14-01-01), the Foundation of the National University of Defense Technology (Grant No. b130101), and the Foundation of Hunan Province (Grant No. CX2013A001).
References
Aso, S., Inoue, K., Yamaguchi, K., and Tani, Y. (2009). “A study on supersonic mixing by circular nozzle with various injection angles for air breathing engine.” J. Acta Astronaut., 65(5), 687–695.
Chen, L. W., Wang, G. L., and Lu, X. Y. (2011). “Numerical investigation of a jet from a blunt body opposing a supersonic flow.” J. Fluid Mech., 684, 85–110.
Endwell, O. D., Warren, B., and James, O. H. (2002). “Prediction of drag reduction in supersonic and hypersonic flows with counter flow jets.” AIAA/AAAF 11th Int. Space Planes and Hypersonic Systems and Technologies Conf., Orleans, France.
FLUENT Release 15.0 [Computer software]. ANSYS, Canonsburg, PA.
Hayashi, K., and Aso, S. (2003). “Effect of pressure ratio on aerodynamic heating reduction due to opposing jet.” 33rd AIAA Fluid Dynamics Conf. and Exhibit, Orlando, FL.
Hayashi, K., Aso, S., and Tani, Y. (2005). “Numerical study of thermal protection system by opposing jet.” 43rd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV.
Hayashi, K., Aso, S., and Tani, Y. (2006). “Experimental study on thermal protection system by opposing jet in supersonic flow.” J. Spacecr. Rock., 43(1), 233–235.
He, K., Chen, J. Q., and Dong, W. Z. (2006). “Penetration mode and drag reduction research in hypersonic flows using a counter-flow jet.” J. Therm. Appl. Mech., 38(4), 438 (in Chinese).
Huang, W., Wang, Z. G., Jin, L., and Liu, J. (2011). “Effect of cavity location on combustion flow field in integrated hypersonic vehicle in near space.” J. Visualization, 14(4), 339–351.
Huang, W., and Yan, L. (2013). “Progress in research on mixing techniques for transverse injection flow fields in supersonic crossflow.” J. Zhejiang University, 14(8), 554–564.
Huang, W., Yan, L., Liu, J., Jin, L., Tian, J. G. (2015). “Drag and heat reduction mechanism in the combinational opposing jet and acoustic cavity concept for hypersonic vehicles.” J. Aerosp. Sci. and Technol., 42, 407–414.
Karagozian, A. R. (2010). “Transverse jets and their control.” J. Progress. Energy Combust. Sci., 36(5), 531–553.
Li, S. B., Wang, Z. G., Huang, W., and Liu, J. (2016). “Effect of the injector configuration for opposing jet on the drag and heat reduction.” J. Aerosp. Sci. Technol., 51, 78–86.
Qian, Y. J. (2004). “Aerodynamics.” Beijing Univ. of Aeronaut and Astronaut Press, Beijing (in Chinese).
Rene, S., and Barakos, G. N. (2008). “Sliding mesh algorithm for CFD analysis of helicopter rotor fuselage aerodynamics.” J. Numer. Methods Fluids., 58, 527–549.
Rong, Y. S. (2013). “Drag reduction research in supersonic flow with opposing jet.” Acta Astronaut, 91, 1–7.
Venukumar, B., Jagadeesh, G., and Reddy, K. P. J. (2006). “Counterflow drag reduction by supersonic jet for a blunt body in hypersonic flow.” J. Phys. Fluids, 18(11), 118104.
Vinayak, K., and Reddy, K. P. J. (2009). “Effect of a supersonic counter flow jet on blunt body heat transfer rates for oncoming high enthalpy flow.” J. Eng. Phys. Thermophys., 82(1), 1–5.
Wada, Y., and Liou, M. S. (1994). “A flux splitting scheme with high-resolution and robustness for discontinuities.”, AIAA, Reston, VA.
Wang, X., Pei, X., Chen, Z. M., and Xu, M. (2010). “Supersonic with counter-flowing jets on drag and heat-transfer reduction.” J. Propul. Technol., 31(3), 261–264 (in Chinese).
Zhou, C. Y., and Ji, W. Y. (2012). “A three-dimensional numerical investigation on drag reduction of a supersonic spherical body with an opposing jet.” Part G: J. Aerosp. Eng., 16(3), 124–132.
Information & Authors
Information
Published In
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jun 22, 2015
Accepted: Apr 28, 2016
Published online: Jul 18, 2016
Discussion open until: Dec 18, 2016
Published in print: Jan 1, 2017
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.