Numerical analysis on the heat and work transfer due to shear in a hot cascade Ranque-Hilsch vortex tube
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- 作者：Nilotpala Bej ; nilotpala2002@gmail.com" class="auth_mail" title="E-mail the corresponding author ; K.P. Sinhamahapatra
- 关键词：Cascade-type RHVT ; Work and heat transfer ; Thermal separation mechanism ; Tangential shear work ; Two-equation turbulence model
- 刊名：International Journal of Refrigeration
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：68
- 期：Complete
- 页码：161-176
- 全文大小：6158 K
文摘
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Tangential shear work is the predominant driving mechanism of thermal separation process.
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Most of the energy separation occurs within an axial span of x/L = 0.17 to 0.50.
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Highest energy separation is achieved when first-stage cold fraction is 0.5 and second-stage cold fraction is 0.3–0.4.
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Sensible heat transfer degrades the performance of vortex tube.