Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Numerical Visualization of the Unsteady Shock Wave Flow Field in Micro Shock Tube

  • Arun, Kumar R. (Department of Mechanical Engineering, Andong National University) ;
  • Kim, Heuy-Dong (Department of Mechanical Engineering, Andong National University)
  • Received : 2012.03.21
  • Accepted : 2012.04.09
  • Published : 2012.04.30
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Abstract

Recently micro shock tube is extensively being used in many diverse fields of engineering applications but the detailed flow physics involved in it is hardly known due to high Knudsen number and strong compressibility effects. Unlike the macro shock tube, the surface area to volume ratio for a micro shock tube is very large. This unique effect brings many complexities into the flow physics that makes the micro shock tube different compared with the macro shock tube. In micro shock tube, the inter- molecular forces of working gas can play an important role in specifying the flow characteristics of the unsteady shock wave flow which is essentially generated in all kinds of shock tubes. In the present study, a CFD method was used to predict and visualize the unsteady shock wave flows using the unsteady compressible Navier-Stokes equations, furnished with the no-slip and slip wall boundary conditions. Maxwell's slip equations were used to mathematically model the shock movement at high Knudsen number. The present CFD results show that the propagation speed of the shock wave is directly proportional to the initial pressure and diameter of micro shock tube.

Keywords

References

  1. Li Junwei and Zhong Beijing., 2008, "Experimental investigation on heat loss and combustion in methane/oxygen micro-tube combustor", Applied Thermal Engineering., Vol. 28, pp. 707-716. https://doi.org/10.1016/j.applthermaleng.2007.06.001
  2. Liu, Y. and Kendall, M.A.F., 2006, "Numerical analysis of gas and micro-particle interactions in a hand-held shock-tube device", Biomed Microdevices., Vol. 8, pp. 341-351. https://doi.org/10.1007/s10544-006-9596-z
  3. Duff, R.E., 1959, "Shock tube performance at initial low pressure", Phys.Fluids., Vol. 2, pp.207-216 https://doi.org/10.1063/1.1705910
  4. Brouillete, M.,2003, "Shock waves at microscales", Shock Waves., Vol. 13, pp. 03-012 https://doi.org/10.1007/s00193-003-0191-4
  5. Zeitoun, D. E., Burtschell, Y., 2006, "Navier- Stokes computations in micro shock tubes", Shock Waves, Vol. 15, pp. 241-246 https://doi.org/10.1007/s00193-006-0023-4
  6. Zeitoun, D. E., Burtschell, Y., Graur, I. A., Ivanov, M. S., Kudryavtsev, A. N., Bondar, Y. A., 2009, Numerical simulation of shock wave propagation in micro channels using continuum and kinetic approaches, Shock Waves, Vol. 19, pp. 307-316 https://doi.org/10.1007/s00193-009-0202-1
  7. Amit Agrawal., Lyazid Djenidi., Antonia, R.A.,2005, "Simulation of gas flow in mcrochannels with a sudden expansion or contraction", Journal of Fluid Mechanics, Vol. 530, pp. 135-144 https://doi.org/10.1017/S0022112005003691
  8. Karniadakis, G. E. M., Beskok, A., 2000, Micro Flows fundamentals and Simulation, Springer, Berlin Heidelberg, New York, pp. 45-62.

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