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Chaotic vibration in fluidelastic instability of a tube row in crossflow

Conference ·
DOI:https://doi.org/10.2172/10188810· OSTI ID:10166592
Chaotic motions with complicated orbits make the prediction of wear between heat exchanger tubes and tube support plates difficult. To unravel the chaotic motions of nonlinearly supported tubes caused by the fluidelastic instability, an analytical investigation based on unsteady flow theory was conducted. The analytical model consists of a row of rigid tubes with three flexible tubes supported by elastic springs. This simplified model enables the study of the fluidelastic coupling effects of loosely supported tubes in crossflow.
Research Organization:
Argonne National Lab., IL (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
10166592
Report Number(s):
ANL/MCT/CP--77890; CONF-930702--35; ON: DE93015537
Country of Publication:
United States
Language:
English