Solution of the boundary-layer equations for natural convection film boiling on vertical cylindrical surfaces

Yunyun Wu; Xiaofei Wang; Xiaosong Zhang

doi:10.1016/j.icheatmasstransfer.2017.08.003

Solution of the boundary-layer equations for natural convection film boiling on vertical cylindrical surfaces

Yunyun Wu, Xiaofei Wang, Xiaosong Zhang

Mechanical Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Film boiling around a cylinder has been studied with a pseudo-similarity method. The velocity, temperature profile, the heat and mass transfer performance and the vapor film thickness could be predicted by the model with the effects of thermal properties (Pr, vapor liquid ρμ ratio, and [formula ommited]) considered. The results show that the heat transfer performance of film boiling on a cylinder surface is much higher than that on a flat surface. The film temperature and the Nusselt number of the numerical model agree well with the experimental data from the literature within the tested ranges. The heat transfer rate and local heat flux of the pseudo-similarity method in this work are also compared with that of the perturbation method, the results from those two method are found a perfect match.

Original language	English (US)
Pages (from-to)	1-6
Number of pages	6
Journal	International Communications in Heat and Mass Transfer
Volume	89
DOIs	https://doi.org/10.1016/j.icheatmasstransfer.2017.08.003
State	Published - Dec 2017

Keywords

Boundary layer flow
Cylindrical coordinate
Film boiling
Heat transfer
Similarity transformation

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Chemical Engineering(all)
Condensed Matter Physics

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title = "Solution of the boundary-layer equations for natural convection film boiling on vertical cylindrical surfaces",

abstract = "Film boiling around a cylinder has been studied with a pseudo-similarity method. The velocity, temperature profile, the heat and mass transfer performance and the vapor film thickness could be predicted by the model with the effects of thermal properties (Pr, vapor liquid ρμ ratio, and [formula ommited]) considered. The results show that the heat transfer performance of film boiling on a cylinder surface is much higher than that on a flat surface. The film temperature and the Nusselt number of the numerical model agree well with the experimental data from the literature within the tested ranges. The heat transfer rate and local heat flux of the pseudo-similarity method in this work are also compared with that of the perturbation method, the results from those two method are found a perfect match.",

keywords = "Boundary layer flow, Cylindrical coordinate, Film boiling, Heat transfer, Similarity transformation",

author = "Yunyun Wu and Xiaofei Wang and Xiaosong Zhang",

note = "Funding Information: This work received support from Natural Science Foundation of China (No. 51520105009 ) Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

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language = "English (US)",

volume = "89",

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journal = "International Communications in Heat and Mass Transfer",

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AU - Wu, Yunyun

AU - Wang, Xiaofei

AU - Zhang, Xiaosong

PY - 2017/12

Y1 - 2017/12

N2 - Film boiling around a cylinder has been studied with a pseudo-similarity method. The velocity, temperature profile, the heat and mass transfer performance and the vapor film thickness could be predicted by the model with the effects of thermal properties (Pr, vapor liquid ρμ ratio, and [formula ommited]) considered. The results show that the heat transfer performance of film boiling on a cylinder surface is much higher than that on a flat surface. The film temperature and the Nusselt number of the numerical model agree well with the experimental data from the literature within the tested ranges. The heat transfer rate and local heat flux of the pseudo-similarity method in this work are also compared with that of the perturbation method, the results from those two method are found a perfect match.

AB - Film boiling around a cylinder has been studied with a pseudo-similarity method. The velocity, temperature profile, the heat and mass transfer performance and the vapor film thickness could be predicted by the model with the effects of thermal properties (Pr, vapor liquid ρμ ratio, and [formula ommited]) considered. The results show that the heat transfer performance of film boiling on a cylinder surface is much higher than that on a flat surface. The film temperature and the Nusselt number of the numerical model agree well with the experimental data from the literature within the tested ranges. The heat transfer rate and local heat flux of the pseudo-similarity method in this work are also compared with that of the perturbation method, the results from those two method are found a perfect match.

KW - Boundary layer flow

KW - Cylindrical coordinate

KW - Film boiling

KW - Heat transfer

KW - Similarity transformation

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Solution of the boundary-layer equations for natural convection film boiling on vertical cylindrical surfaces

Abstract

Keywords

ASJC Scopus subject areas

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