Abstract
The interaction of blast waves with inanimate and biological structures has remained a subject of interest in order to understand their responses to the blast exposure. In this article, the interaction of blast wave with three generic objects namely sphere, cylinder and cone is studied through numerical simulation. The blast wave is generated in a shock tube by limiting its driver section length. The numerical simulation is carried out by solving the Euler equations using ANSYS-Fluent CFD software. The main focus here is to find the typical object shape for which the blast wave gets regenerated earlier at the rear of the object after reflection and diffraction. It is observed that the reattachment occurs first in case of a sphere, followed by the cone and finally the cylinder.
Similar content being viewed by others
References
A.M. Remennikov, Modelling blast loads on buildings in complex city geometries. Comput. Struct. 83, 2197–2220 (2005). https://doi.org/10.1016/j.compstruc.2005.04.003
I.G. Cullis, Blast waves and how they interact with structures. J. R. Army Med. Corps 147, 16–26 (2001). https://doi.org/10.1136/jramc-147-01-02
N. Michael, Visual Model for Blast Waves and Fracture (Department of Computer Science, University of Toronto, Toronto, 1998)
G. Chen, M. Feldman, Free boundary problems in shock reflection/diffraction and related transonic flow problems. Philos. Trans. R. Soc. A 373, 20140276 (2015). https://doi.org/10.1098/rsta.2014.0276
A.E. Bryson, R.W.F. Gross, Diffraction of strong shocks by cones, cylinders, and spheres. J. Fluid Mech. 10, 1–16 (1961). https://doi.org/10.1017/S0022112061000019
G.B. Whitham, A new approach to problems of shock dynamics part I two-dimensional problems. J. Fluid Mech. 2, 145–171 (1957). https://doi.org/10.1017/S002211205700004X
G.B. Whitham, A new approach to problems of shock dynamics part II two-dimensional problems. J. Fluid Mech. 5, 369–386 (1959). https://doi.org/10.1017/S002211205900026X
M. Sun, T. Saito, K. Takayama, H. Tanno, Unsteady drag on a sphere by shock wave loading. Shock Waves 14, 3–9 (2005). https://doi.org/10.1007/s00193-004-0235-4
K. Kontis, R. An, J.A. Edwards, Compressible vortex ring studies with a number of generic body configurations. AIAA J 44, 2962–2978 (2006). https://doi.org/10.2514/1.21018
T. Murugan, D. Das, Experimental study on a compressible vortex ring in collision with a wall. J. Vis. 15(4), 321–332 (2012). https://doi.org/10.1007/s12650-012-0138-x
T. Murugan, S. De, A. Sreevatsa, S. Dutta, Numerical simulation of compressible vortex–wall interaction. Shockwaves 26(3), 311–326 (2016). https://doi.org/10.1007/s00193-015-0611-2
T. Murugan, S. De, A. Kundu, I.P.S. Sandhu, D.R. Saroha, Interaction of a shock tube generated blast wave with solid obstacles, in 11th International High Energy Materials Conference & Exhibits, 23–25 November, Pune, India (2017)
S. Dey, T. Murugan, D. Chatterjee, Numerical visualization of blast wave interacting with objects. J. Appl. Fluid. Mech. 11(5), 1201–1206 (2018)
N. Chandra, S. Ganpule, N.N. Kleinschmit, R. Feng, A.D. Holmberg, A. Sundaramurthy, V. Selvan, A. Alai, Evolution of blast wave profiles in simulated air blasts: experiment and computational modeling. Shock Waves 22, 403–415 (2012). https://doi.org/10.1007/s00193-012-0399-2
T. Murugan, S. De, C.L. Dora, D. Das, Numerical simulation and PIV study of compressible vortex ring evolution. Shock Waves 22, 69–83 (2012). https://doi.org/10.1007/s00193-011-0344-9
T. Murugan, Flow and acoustic characteristics of high Mach number vortex rings during evolution and wall-interaction: an experimental investigation. Ph.D. thesis, Indian Institute of Technology, Kanpur (2008)
S. De, T. Murugan, Numerical simulation of shock tube generated vortex: effect of numerics. Int. J Comput Fluid Dyn. 25, 345–354 (2011). https://doi.org/10.1080/10618562.2011.600694
T. Murugan, S. De, C.L. Dora, D. Das, P.P. Kumar, A study of the counter rotating vortex rings interacting with the primary vortex ring in shock tube generated flows. Fluid Dyn. Res. 45(2), 025506 (2013). https://doi.org/10.1088/0169-5983/45/2/025506
Ansys Fluent, ver. 13, Theory Guide (Ansys Inc., Washington, 2011)
R. Ishii, H. Fujimoto, N. Hatta, Y. Umeda, Experimental and numerical analysis of circular pulse jets. J. Fluid Mech. 392, 129–153 (1999). https://doi.org/10.1017/S0022112099005303
K. Takayama, T. Saito, M. Sun, K. Tamai, H. Tanno, J. Falcovitz, Unsteady drag force measurements of shock loaded bodies suspended in a vertical shock tube, in Proceedings of the 21st International Congress of Theoretical and Applied Mechanics, Warsaw, Poland (2004)
M.-S. Liou, C. Steffen, A new flux splitting scheme. J. Comput. Phys. 107, 23–39 (1993). https://doi.org/10.1006/jcph.1993.1122
V. Kumar, M. Singh, T. Murugan, P.K. Chatterjee, Effect of free stream turbulence on flow past a circular cylinder at low Reynolds numbers. J. Inst. Eng. India Ser. C. (2018). https://doi.org/10.1007/s40032-017-0422-6
A. Kundu, S. De, T. Murugan, C.L. Dora, D. Das, Numerical visualization of shock tube-generated vortex–wall interaction using a fifth-order upwind scheme. J. Vis. 19(4), 667–678 (2016). https://doi.org/10.1007/s12650-016-0362-x
C.L. Dora, T. Murugan, S. De, D. Das, Role of slipstream instability in formation of counter-rotating vortex rings ahead of a compressible vortex ring. J. Fluid Mech. 753, 29–48 (2014). https://doi.org/10.1017/jfm.2014.353
G. Abate, W. Shyy, Dynamic structure of confined shocks undergoing sudden expansion. Prog. Aerosp. Sci. 38, 23–42 (2002). https://doi.org/10.1016/S0376-0421(01)00016-1
M. Sun, K. Takayama, A note on numerical simulation of vortical structures in shock diffraction. Shock Waves 13, 25–32 (2003). https://doi.org/10.1007/s00193-003-0195-0
T.-I. Tseng, R.-J. Yang, Numerical simulation of vorticity production in shock diffraction. AIAA J. 44(5), 1040–1047 (2006). https://doi.org/10.2514/1.16196
Acknowledgements
Authors sincerely acknowledge the TBRL, Chandigarh, India, for their partial financial support for this work. Authors thank Dr. Anupam Sinha for his support in simulation at high-performance computational facility of CSIR-CMERI. We also acknowledge Mr. Ajoy Kuchlyan for his support in post-processing.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Dey, S., Murugan, T. & Chatterjee, D. Blast Wave Interaction with Generic Objects and the Measurement of Blast Wave Reattachment Distances. J. Inst. Eng. India Ser. C 101, 747–760 (2020). https://doi.org/10.1007/s40032-020-00596-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40032-020-00596-1