The reflection of planar shock waves from straight wedges in dust-gas suspensions is investigated numerically. The GRP shock capturing scheme and the MacCormac scheme are applied to solve the governing equations of the gaseous and solid phases, respectively. These two schemes have a second-order accuracy both in time and space. It is shown that the presence of the dust significantly affects the shock-wave-reflection-induced flow field. The incident shock wave attenuates and hence unlike the shock wave reflection phenomenon in a pure gas, the flow field in the present case is not pseudo steady. The presence of the dust results in lower gas velocities and gas temperatures and higher gas densities and gas pressures than in dust-free shock wave reflections with identical initial conditions. It is also shown that the smaller is the diameter of the dust particle the larger are the above-mentioned differences. In addition, the smaller is the diameter of the dust particle the narrower is the width of the dust cloud behind the incident shock wave. Larger dust velocities, dust temperatures and dust spatial densities are obtained inside this dust cloud for smaller dust particles. The results provide a clear picture of whether and how the presence of dust particles affects the shock-wave-reflection-induced flow field.
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March 2001
Technical Papers
Shock Wave Reflections in Dust-Gas Suspensions
G. Ben-Dor, Professor,
G. Ben-Dor, Professor
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel 84105
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O. Igra, Professor,
O. Igra, Professor
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel 84105
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L. Wang, Visiting Researcher
L. Wang, Visiting Researcher
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel 84105
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G. Ben-Dor, Professor
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel 84105
O. Igra, Professor
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel 84105
L. Wang, Visiting Researcher
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel 84105
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division November 5, 1999; revised manuscript received September 6, 2000. Associate Editor: J. Eaton.
J. Fluids Eng. Mar 2001, 123(1): 145-153 (9 pages)
Published Online: September 6, 2000
Article history
Received:
November 5, 1999
Revised:
September 6, 2000
Citation
Ben-Dor, G., Igra, O., and Wang, L. (September 6, 2000). "Shock Wave Reflections in Dust-Gas Suspensions ." ASME. J. Fluids Eng. March 2001; 123(1): 145–153. https://doi.org/10.1115/1.1331558
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