Influence of Jet Hole Configuration on Drag Reduction of Bionic Jet Surface

Abstract:

According to the jet hole configuration mode of bionic jet surface and its influence on the drag reduction, as the basic form of jet hole configuration is the isosceles triangle elements, so this was used to establish the computational model of jet hole configuration. In this case, the height and base of the triangles were considered as variable. The SST k-ω turbulence model was used to simulate and research the drag reduction characteristics of bionic jet surface in different configuration modes of jet holes at the main flow field velocity value of 20m/s and the jet velocity value of 0.4~2.0m/s. Also the influence of different configurations of height and base on drag reduction characteristics of bionic jet surface was studied, which got the optimum size of jet hole configuration. Results show that in triangle configuration elements, the drag reduction characteristics of bionic jet surface can be influenced by the jet hole of different configurations of height and base; the drag reduction of bionic jet surface reaches the peak of 32.74% at 8mm height, 11mm base, and the jet velocity value of 2.0m/s. At the same flow field velocity, the drag reduction rate results achieved by experimental tests and by numerical simulation were changing consistently and were found same, which verifies correctness of numerical simulation results.

• Periodical: Applied Mechanics and Materials (Volume 461)
• Pages: 725-730
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.461.725
• Online since: November 2013
• Authors: Yun Qing Gu, Jing Ru, Zhao Gang, Zhao Yuan Li, Wen Bo Liu, Muhammad Farid Khattak
• Keywords: Configuration Mode, Drag Reduction, Experiment, Numerical Simulation, Triangle Configuration

References

[1] Y.Q. Gu, G. Zhao, J.X. Zheng, et al, Drag reduction characteristics on jetting surface with jet angle-jet velocity coupling, Hsi An Chiao Tung Ta Hsueh. 9 (2012) 71-77.

[2] M. Barber, J. Schetz, L. Roe. Normal sonic helium injection thorough a wedge shaped orifice into a supersonic flow, Journal of Propulsion and Power. 2 (1997) 257-263.

DOI: 10.2514/2.5157

[3] B. Meyer, H.F. Nelson, D. Riggins, Hypersonic drag and heat-transfer reduction using a forward-facing jet, Journal of Aircraft. 4 (2001) 680-684.

DOI: 10.2514/2.2819

[4] J. Eswar, P. Mark, B.B. William, Applications of a counterflow drag reduction technique in high-speed systems, Journal of Spacecraft and Rockets. 4 (2002) 605-614.

DOI: 10.2514/2.3850

[5] V.M. Fomin, V.P. Fomichev, T.A. Korotaeva, et al, Influence of a counterflow plasma jet on supersonic blunt-body pressures, AIAA J. 6 (2002) 1170-1177.

DOI: 10.2514/3.15178

[6] L.W. Chen, G.L. Wang, X.Y. Lu, Numerical investigation of a jet from a blunt body opposing a supersonic flow, Journal of Fluid Mechanics. 684 (2011) 85-110.

DOI: 10.1017/jfm.2011.276

[7] Y.Q. Gu, G. Zhao, H.L. Zhao, et al, Simulation study on drag reduction characteristics of bionic jet flow based on shark gill, Acta Armamentarii. 10 (2012) 1230-1236.

[8] G. Zhao, Y.Q. Gu, H.L. Zhao, et al, Numerical simulation of the drag reduction characteristics of a bionic jet surface aperture coupled with jet speed, J. Harb. Eng Univ. 8 (2012) 1001-1007.

[9] G. Zhao, Y.Q. Gu, G.Y. Xu, et al, Experimental study on drag reduction characteristics of bionic jet surface, J. Cent. South Univ. Sci Technol. 8 (2012) 3007-3012.

[10] Y.Q. Gu, G. Zhao, J.X. Zheng, et al, Characteristics of drag reduction on coupling of jet surface main flow field velocity and jet velocity, J. Cent. South Univ. Sci Technol. 12 (2012) 4713-4721.

[11] Y.Q. Gu, G. Zhao, J.X. Zheng, et al, Experiment study and numerical simulation on drag reduction characteristic of bionic jetting surface, 2012 International Conference on Maritime Technology, England: Institute of Marine Engineering, Science & Technology. (2012).

[12] Y.Q. Gu, G. Zhao, H. Liu, et al, Characteristics of drag reduction of bionic dimpled surface of shell rubber ring of aerodynamic extinguishing cannon, Journal of Jilin University: Engineering and Technology Edition. 4 (2013) 983-990.

DOI: 10.1007/s11771-013-1830-2

[13] Y.B. Zhang, Z.S. He, R.B. Yuan, et al, The modeling and simulation of water hydraulic overflow valve with giant magnetostrictive actuator, Appl Mech Mater. 233(2012) 163-167.

DOI: 10.4028/www.scientific.net/amm.233.163

[14] P. Yi, R.B. Yuan, J. Luo, et al, Sliding mode control applied to aerodynamic servo system, Appl Mech Mater. 233(2012) 109-113.

DOI: 10.4028/www.scientific.net/amm.233.109

[15] G. Zhao, Y.Q. Gu, J.X. Zheng, et al, A testing platform based on bionics drag reduction theory for friction resistance, Communications in Information Science and Management Engineering. 5 (2012) 34-39.