A Simple Method for Fluid-Structure Interaction Analysis Under Cavitation Condition

[+] Author and Article Information
K. Baba, M. Ochi

System Technology Center, Mitsubishi Heavy Industries, Ltd., 1-1-1 Wadasaki-cho Hyogo-ku, Kobe 652, Japan

H. Fuyama

Takasago Research and Development Center, Mitsubishi Heavy Industries, Ltd., 2-1-1 Arai-cho, Takasago 676, Japan

J. Pressure Vessel Technol 120(1), 29-34 (Feb 01, 1998) (6 pages) doi:10.1115/1.2841881 History: Revised April 18, 1997; Received July 14, 1997; Online February 11, 2008


In fluid-structure interaction problems, many studies are done by linear formulations. But severe loading may cause cavitation that shows nonlinear behavior. In handling cavitation phenomena, a displacement potential was introduced or density was used as the variable. Each method loses the conservation of liquid volume that is vital for liquid-filled tanks; mesh size should be the scales of cavitation. This paper proposes a simple method based on Lagrange multiplier method. A numerical example is shown for a one-dimensional problem together with a comparison to an experimental result.

Copyright © 1998 by The American Society of Mechanical Engineers
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