Refine your search
Collections
Co-Authors
Journals
Year
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Yadav, Amar
- Computational Analysis of Shock Diffraction over Sharp Splitters
Abstract Views :276 |
PDF Views:0
Authors
Amar Yadav
1,
Pabitra Halder
1
Affiliations
1 Department of Aerospace Engineering and Applied Mechanics, IIEST, Shibpur-711103, IN
1 Department of Aerospace Engineering and Applied Mechanics, IIEST, Shibpur-711103, IN
Source
Indian Science Cruiser, Vol 34, No 2 (2020), Pagination: 18-21Abstract
It is well established that when a normal shock suddenly comes in an extended area region, it creates a shock wave diffraction phenomenon. Along with this phenomenon, some complex flow features such as vortex, shear layer and vortex-shock interactions develop in the perturbed region. This flow features majorly depend on grid size. Kelvin- Helmholtz instability can be obtained by using a very fine grid size. The present work considers diffraction phenomenon over sharp asymmetric splitters. The computational analysis has been carried out on FVM based computational fluid dynamics solver using AUSM scheme. In this present project work, a closed solid boundary is taken as flow domain with marked regions for high and low pressure. This pressure difference provides a particular Mach number over a sharp corner angle of 7° (in clock-wise).Keywords
Shock Diffraction, Sharp Splitters, Shock-Vortex Interaction, Ansys Fluent.
References
- B.W. Skews, The perturbed region behind a diffracting shock wave, J. Fluid Mech.29 (1967) 705–719.
- M. Sun, K. Takayama, A note on numerical simulation of vortical structures in shock diffraction, Shock Waves 13 (2003) 25–32.
- M. Sun, K. Takayama, The formation of a secondary shock wave behind a shock wave diffracting at a convex corner, Shock Waves 7 (1997) 287–295.
- F. Gnani, K.H.Lo, H.Zare-Behtash,K.Kontis, Experimental investigation on shock wave diffraction over sharp and curved splitters, Acta Astronautica 2014)
- M. Sun, K. Takayama, Vorticity production in shock diffraction, J. Fluid Mech. 478 (2003) 237– 256.
- B.W. Skews, C. Law, A. Muritala, S. Bode, Shear layer behaviour resulting from shock wave diffraction, Exp. Fluids 52 (2012) 417–424.
- M.K. Quinn, Shock diffraction phenomena and their measurement (Ph.D. thesis), University of Manchester, 2013.
- G. Abate, W. Shyy, Dynamic structure of confined shocks undergoing sudden expansion, Prog. Aerosp. Science 38 (2002) 23–42.
- M.K. Quinn, K. Kontis, A combined study on shock diffraction, in: 5th Symposium on Integrating CFD and Experiments in Aerodynamics, Japan, 2012.
- B.W. Skews, The shape of a diffracting shock wave, J. Fluid Mech. 29 (1967) 297–304.
- G.B. Whitham, New approach to problems of shock dynamics, Part II: three-dimensional problems, J. Fluid Mech. 5 (1959) 369–386.
- T.V. Bazhenova, L. G. Gvozdeva, Yu. V. Zhilin, Change in the shape of the diffracting shock wave at a convex corner, Acta Astronaut. 6 (1977) 401– 412.
- M. J. Lighthill, The diffraction of blast. I, Proc. R. Soc. Lond. Ser. A: Math. Phys. Sci.198 (1949) 454–470.
- K.S. Chang, S.M. Chang, Scattering of shock into acoustic waves in shock-vortex interaction, Mater. Sci. Forum 465 (2004) 131–138.