Influence of flow shedding frequency on convection heat transfer from bank of circular tubes in heat exchangers under cross flow
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- 作者：Rajendran Senthil kumar ; rajendiransenthilkumar@gmail.com" class="auth_mail" title="E-mail the corresponding author ; S. Jayavel
- 关键词：Pressure drag coefficient ; Frictional drag coefficient ; Strouhal number ; Nusselt number and heat exchangers
- 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：376-393
- 全文大小：5535 K
文摘
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Flow shedding does not exist at BR 1.54, double and multiple vortices exist.
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Flow shedding decreases at BR 2 and preponement in turbulence.
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The flow shedding frequency is almost constant at BR 3 up to Re 200.
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Heat transfer in compact heat exchanger at BR ⩽ 3 does not depend on flow shedding.
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Flow attachment and advancement in turbulence leads to heat transfer enhancement.