Validation of turbulence induced vibration design guidelines in a normal triangular tube bundle during two-phase crossflow

Autor(es)

Alvarez-Briceno, Ricardo ^[1] ; Kanizawa, Fabio Toshio ^[2] ; Ribatski, Gherhardt ^{[1, 3]} ; de Oliveira, Leopoldo P. R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sao Carlos Sch Engn, Mech Engn Dept, Av Trabalhador Sao Carlene 400, BR-13566590 Sao Carlos, SP - Brazil

^[2] Fed Fluminense Univ, Niteroi, RJ - Brazil

^[3] Heat Transfer Res Grp, Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF FLUIDS AND STRUCTURES; v. 76, p. 301-318, JAN 2018.
• Citações Web of Science: 3

Resumo

The present paper addresses an experimental investigation on flow-induced vibration for air-water flow across a normal triangular tube bundle, with transverse pitch-to-diameter ratio of 1.26, aiming to validate the design guidelines found in the open literature for turbulence-induced vibration. In order to do so, the present experimental approach features a tube mounted in cantilever, instrumented with two accelerometers, perpendicularly aligned, mounted in the free tip. This configuration allows to measure the tube acceleration response under distinct operation conditions. The dynamic parameters necessary to evaluate the design guidelines are extracted from these data. Assuming that turbulence-induced is the dominant vibration mechanism for the range of experimental conditions covered by the present study, the current models used to predict the tube vibration upper bound are reviewed and implemented. The present results are plotted with these envelopes showing good agreement, hence, validating the test bench for future works. Moreover, it is noticed that the loading patterns are strongly dependent on the experimental conditions, specially the local flow pattern. Additionally, a predictive method for tube displacement amplitude is proposed based on the experimental results obtained in the present study. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 10/20670-2 - Estudo teórico e experimental da fração de vazio e da vibração induzida pelo padrão de escoamento externamente a banco de tubos
• Beneficiário: Fabio Toshio Kanizawa
• Linha de fomento: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/06902-9 - Estudo teórico e experimental da vibração induzida por escoamentos bifásicos externos a banco de tubos
• Beneficiário: Fabio Toshio Kanizawa
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado