Two water columns with identical initial diameters of 4.8 mm were placed 30 mm apart inside a shock tube test section and were loaded by a shock wave of Mach number 1.47 in atmospheric air. The Weber and Reynolds numbers corresponding to these flow conditions are 6900 and 112,000, respectively. Double-exposure holographic interferometry was used to visualize the shock/water columns interaction. The process of the water columns deformation, displacement, and acceleration was well visualized and hence the drag coefficient of shock loaded water columns was evaluated. The front water column behaved virtually the same as a single water column under the same flow conditions. However, the displacement and acceleration of the rear water column was less significant than that of the front one. Hence, its drag coefficient is less. These results show that the front water column has affected the flow field around the rear water column.
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March 2003
Technical Papers
Experimental Investigation of Two Cylindrical Water Columns Subjected to Planar Shock Wave Loading
D. Igra,
D. Igra
Shock Wave Research Center, Institute of Fluid Science, Tohoku University, Japan
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K. Takayama
K. Takayama
Shock Wave Research Center, Institute of Fluid Science, Tohoku University, Japan
Search for other works by this author on:
D. Igra
Shock Wave Research Center, Institute of Fluid Science, Tohoku University, Japan
K. Takayama
Shock Wave Research Center, Institute of Fluid Science, Tohoku University, Japan
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division April 25, 2001; revised manuscript received July 1, 2002. Associate Editor: A. K. Prasad.
J. Fluids Eng. Mar 2003, 125(2): 325-331 (7 pages)
Published Online: March 27, 2003
Article history
Received:
April 25, 2001
Revised:
July 1, 2002
Online:
March 27, 2003
Citation
Igra , D., and Takayama , K. (March 27, 2003). "Experimental Investigation of Two Cylindrical Water Columns Subjected to Planar Shock Wave Loading ." ASME. J. Fluids Eng. March 2003; 125(2): 325–331. https://doi.org/10.1115/1.1538628
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