Flow-induced vibrations due to crossflow in the shell side of heat exchangers pose a problem of major interest to researchers and practicing engineers. Tube array vibrations may lead to tube failure due to fretting wear and fatigue. Such failures have resulted in numerous plant shutdowns, which are often very costly. The need for accurate prediction of vibration and wear of heat exchangers in service has placed greater emphasis on the improved modeling of the associated phenomenon of flow-induced vibrations. In this study, the elastodynamic model of the tube array is modeled using the finite element approach, wherein each tube is modeled by a set of finite tube elements. The interaction between tubes in the bundle is represented by fluidelastic coupling forces, which are defined in terms of the multidegree-of-freedom elastodynamic behavior of each tube in the bundle. Explicit expressions of the finite element coefficient matrices are derived. The model admits experimentally identified fluidelastic force coefficients to establish the final form of equations of motion. The nonlinear complex eigenvalue problem is formulated and solved to determine the onset of fluidelastic instability for a given set of operating parameters.
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e-mail: khulief@kfupm.edu.sa
e-mail: kaabis@kfupm.edu.sa
e-mail: samsaid@kfupm.edu.sa
e-mail: anisqasm@kfupm.edu.sa
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February 2009
Research Papers
Prediction of Flow-Induced Vibrations in Tubular Heat Exchangers—Part I: Numerical Modeling
Y. A. Khulief,
Y. A. Khulief
Department of Mechanical Engineering,
e-mail: khulief@kfupm.edu.sa
King Fahd University of Petroleum & Minerals
, KFUPM Box 1767, Dhahran 31261, Saudi Arabia
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S. A. Al-Kaabi,
S. A. Al-Kaabi
Department of Mechanical Engineering,
e-mail: kaabis@kfupm.edu.sa
King Fahd University of Petroleum & Minerals
, KFUPM Box 1767, Dhahran 31261, Saudi Arabia
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S. A. Said,
S. A. Said
Department of Mechanical Engineering,
e-mail: samsaid@kfupm.edu.sa
King Fahd University of Petroleum & Minerals
, KFUPM Box 1767, Dhahran 31261, Saudi Arabia
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M. Anis
M. Anis
Department of Mechanical Engineering,
e-mail: anisqasm@kfupm.edu.sa
King Fahd University of Petroleum & Minerals
, KFUPM Box 1767, Dhahran 31261, Saudi Arabia
Search for other works by this author on:
Y. A. Khulief
Department of Mechanical Engineering,
King Fahd University of Petroleum & Minerals
, KFUPM Box 1767, Dhahran 31261, Saudi Arabiae-mail: khulief@kfupm.edu.sa
S. A. Al-Kaabi
Department of Mechanical Engineering,
King Fahd University of Petroleum & Minerals
, KFUPM Box 1767, Dhahran 31261, Saudi Arabiae-mail: kaabis@kfupm.edu.sa
S. A. Said
Department of Mechanical Engineering,
King Fahd University of Petroleum & Minerals
, KFUPM Box 1767, Dhahran 31261, Saudi Arabiae-mail: samsaid@kfupm.edu.sa
M. Anis
Department of Mechanical Engineering,
King Fahd University of Petroleum & Minerals
, KFUPM Box 1767, Dhahran 31261, Saudi Arabiae-mail: anisqasm@kfupm.edu.sa
J. Pressure Vessel Technol. Feb 2009, 131(1): 011301 (8 pages)
Published Online: November 10, 2008
Article history
Received:
January 4, 2007
Revised:
April 27, 2008
Published:
November 10, 2008
Connected Content
A companion article has been published:
Prediction of Flow-Induced Vibrations in Tubular Heat Exchangers—Part II: Experimental Investigation
Citation
Khulief, Y. A., Al-Kaabi, S. A., Said, S. A., and Anis, M. (November 10, 2008). "Prediction of Flow-Induced Vibrations in Tubular Heat Exchangers—Part I: Numerical Modeling." ASME. J. Pressure Vessel Technol. February 2009; 131(1): 011301. https://doi.org/10.1115/1.3006950
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