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http://dx.doi.org/10.12989/aas.2019.6.1.019

Shock wave instability in a bent channel with subsonic/supersonic exit  

Kuzmin, Alexander (Department of Fluid Dynamics, St. Petersburg State University)
Publication Information
Advances in aircraft and spacecraft science / v.6, no.1, 2019 , pp. 19-30 More about this Journal
Abstract
Two- and three-dimensional turbulent airflows in a 9-degrees-bent channel are studied numerically. The inner surfaces of upper and lower walls are parallel to each other upstream and downstream of the bend section. The free stream is supersonic, whereas the flow at the channel exit is either supersonic or subsonic depending on the given backpressure. Solutions of the Reynolds-averaged Navier-Stokes equations are obtained with a finite-volume solver ANSYS CFX. The solutions reveal instability of formed shock waves and a flow hysteresis in considerable bands of the free-stream Mach number at zero and negative angles of attack. The instability is caused by an interaction of shocks with the expansion flow formed over the convex bend of lower wall.
Keywords
shock waves; curved channel; instability; hysteresis; turbulent boundary layer;
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1 Kang, W., Liu, Zh., Lu, J., Wang, Yu and Dong, Y. (2014), "A numerical study for flow excitation and performance of rampressor inlet considering rotor motion", Shock Vib., 2014.
2 Knight, D., Panaras, A.G. and Zheltovodov, A.A. (2003), "Advances in CFD prediction of shock wave turbulent boundary layer interactions", Progress Aerosp. Sci., 39(2), 121-184.   DOI
3 Kotteda, V.M.K. and Mittal, S. (2016), "Flow in a Y-intake at supersonic speeds", J. Propulsion Power, 32 (1), 171-187.   DOI
4 Kuzmin, A. (2015), "Shock wave instability in a channel with an expansion corner", J. Appl. Mech., 7(2), 1550019.   DOI
5 Kuzmin, A. (2016), "Shock wave bifurcation in channels with a bend", Arch. Appl. Mech., 86(5), 787-795.   DOI
6 Kuzmin, A. (2017), "Transonic flow instability in the entrance region of a channel with breaks of walls", Arch. Appl. Mech., 87(8), 1269-1279.   DOI
7 Menter, F.R. (2009), "Review of the Shear-Stress Transport turbulence model experience from an industrial perspective", J. Comput. Fluid Dynam., 23(4), 305-316.   DOI
8 Maruyama, D., Kusunose, K. and Matsushima, K. (2009), "Aerodynamic characteristics of a two-dimensional supersonic biplane, covering its take-off to cruise conditions", Shock Waves, 18(6), 437-450.   DOI
9 Nguyen, T., Behr, M. and Reinartz, B.U. (2011), "Numerical investigations of the effects of sidewall compression and relaminarization in 3D scramjet inlet", the 15th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, Ohio, U.S.A., April.
10 Panaras, A.G. (1996), "Review of the physics of swept-shock/boundary layer interactions", Prog. Aerosp. Sci., 32(2-3), 173-244.   DOI
11 Sforza, P.M. (2012), Theory of aerospace propulsion, Academic Press, Waltham, Massachusetts, U.S.A.
12 Spalart, P.R. and Shur, M. (1997), "On the sensitization of turbulence models to rotation and curvature", Aerosp. Sci. Technol., 1(5), 297-302.   DOI
13 Torenbeek, E. and Wittenberg, H. (2009), Flight Physics, Essentials of Aeronautical Disciplines and Technology with Historical Notes, Springer, Dordrecht, The Netherlands.
14 Feng, S., Chang, J., Zhang, Ch., Wang, Y., Ma, J. and Bao, W. (2017a), "Experimental and numerical investigation on hysteresis characteristics and formation mechanism for a variable geometry dual-mode combustor", Aerosp. Sci. Technol., 67, 96-104.   DOI
15 Feng, S., Chang, J., Zhang, Y., Zhang, Ch., Wang, Y. and Bao, W. (2017b), "Numerical studies for performance improvement of a variable geometry dual mode combustor by optimizing deflection angle", Aerosp. Sci. Technol., 68, 320-330.   DOI
16 Guo, S., Wang, Z. and Zhao, Y. (2014), "The flow hysteresis in the supersonic curved channel", J. Natl. U Defense Technol., 36(4), 10-14.
17 Han, J.A., Zhong, J.J., Yan, H.M., Sun, P. and Yu, Y. (2009), "Numerical research of three dimensional flow-path in a ram-rotor", J. Aerosp. Power, 24 (5), 1079-1088.
18 Hu, R., Jameson, A. and Wang, Q. (2011), "Adjoint based aerodynamic optimization of supersonic biplane airfoils", J. Aircraft, 49(3), 802-814.   DOI