Fluid-damping-controlled instability of tubes in crossflow [electronic resource].
- Palo Alto, Calif. : Electric Power Research Institute, 1997.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 61 pages : digital, PDF file
- Additional Creators:
- Argonne National Laboratory, Electric Power Research Institute, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- A mathematical model for fluid damping controlled instability of tubes presented in this paper is based on the unsteady flow theory. Motion dependent fluid forces are measured in a water channel. From the measured fluid forces, fluid stiffness and fluid damping coefficients, are calculated as a function of reduced flow velocity, oscillation amplitude, and Reynolds number. Once these coefficients are known, the mathematical model can be applied to predict structural instability due to fluid damping. Many cases are considered: single tube, twin tubes, tube row, triangular array, and square arrays. The results show the instability regions based on the fluid damping coefficients and provide the answers to a series of questions on fluid elastic instability of tube arrays in crossflow.
- Report Numbers:
- E 1.99:anl/et/cp--92179
E 1.99: conf-971115--
- Other Subject(s):
- Published through SciTech Connect.
International mechanical engineering congress and exposition, Dallas, TX (United States), 16-21 Nov 1997.
Chen, S.S.; Cai, Y.; Srikantiah, G.S.
- Funding Information:
View MARC record | catkey: 14108639