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Title
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A review of heat exchanger tube bundle vibrations in two-phase cross-flow
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Sub-Title |
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Subject |
-
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Author |
Shahab Khushnood, Zaffar M.Khan, M.Afzaal Malik, Z
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Publish Year |
200 |
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Supervisor |
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Diss#. |
https://doi.org/10.1016/j.nucengdes.2003.11.024 |
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Pages |
233-251 |
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Text Language |
English |
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Accession |
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Library Section |
Research Article |
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Abstract |
Flow-induced vibration is an important concern to the designers of heat exchangers subjected to high flows of gases or liquids.
Two-phase cross-flow occurs in industrial heat exchangers, such as nuclear steam generators, condensers, and boilers, etc. Under
certain flowregimes and fluid velocities, the fluid forces result in tube vibration and damage due to fretting and fatigue. Prediction
of these forces requires an understanding of the flow regimes found in heat exchanger tube bundles. Excessive vibrations under
normal operating conditions can lead to tube failure.
Relatively little information exists on two-phase vibration. This is not surprising as single-phase flow induced vibration; a
simpler topic is not yet fully understood. Vibration in two-phase is much more complex because it depends upon two-phase flow
regime, i.e. characteristics of two-phase mixture and involves an important consideration, which is the void fraction. The effect
of characteristics of two-phase mixture on fl
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