Numerical Modeling of Formation of High-Speed Water Slugs

[+] Author and Article Information
O. Petrenko, B. Goldenberg

New Jersey Institute of Technology

E. S. Geskin

New Jersey Institute of Technology, Newark, NJ 07102-1982e-mail: geskin@njit.edu

G. A. Atanov

Donetsk Open University, Donetsk, Ukraine

A. Semko

University of Donetsk, Donetsk

J. Fluids Eng 126(2), 206-209 (May 03, 2004) (4 pages) doi:10.1115/1.1669421 History: Received January 15, 2003; Revised October 30, 2003; Online May 03, 2004
Copyright © 2004 by ASME
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General schematic of the water cannon 1—powder charge, 2—water load, 3—converging nozzle
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Experiment Schematic 1—water cannon, 2—first velocimeter, 3—second velocimeter, 4—ballistic pendulum, 5—impulsive water jet
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Distribution of water velocity during the process of 200 g slug flow in the nozzle. Point of origin is shifted up to the moment of inflow.
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Effective slug impulse versus connection nozzle radius and position of the connection
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Velocity of inflow (into the nozzle), outflow (on the exit of collimator), pressure at different points of water cannon versus time. 1—velocity of inflow (inlet) and outflow (outlet) 2—pressure of powder gases in the combustion camera (x=−450 mm) 3—pressure in the middle of the water cannon (x=−200 mm) 4—pressure in the nozzle inlet (x=20 mm, nozzle length—70 MM) 5—pressure in the collimator inlet (x=75 mm, collimator length 60 mm).




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