Criteria for Onset of Flow Instability in heated vertical narrow rectangular channels at low pressure: An assessment study
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- 作者：Alberto Ghionea ; b ; ghione@chalmers.se" class="auth_mail" title="E-mail the corresponding author ; Brigitte Noela ; brigitte.noel@cea.fr" class="auth_mail" title="E-mail the corresponding author ; Paolo Vinaib ; vinai@chalmers.se" class="auth_mail" title="E-mail the corresponding author ; Christophe Demaziè ; reb ; demaz@chalmers.se" class="auth_mail" title="E-mail the corresponding author
- 关键词：Narrow rectangular channel ; Onset of Flow Instability ; Flow excursion ; Upward flow ; Uniform and non-uniform heat flux
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：105
- 期：Complete
- 页码：464-478
- 全文大小：3780 K
文摘
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Criteria for Onset of Flow Instability in narrow rectangular channels are assessed.
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Upward flow experiments with uniform and non-uniform axial heat flux profile are used.
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On average, the criteria included in the study, provide conservative results.
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Optimized criteria based on the best-fitting of the data are investigated.
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Non-uniform heat flux profiles may slightly affect the performances of the criteria.