Transient, Two-Dimensional Heat Conduction Model for Rewetting a Hot Vertical Plate Surface by a Falling Liquid Film. | ||||
| MEJ- Mansoura Engineering Journal | ||||
| Article 7, Volume 21, Issue 2, June 1996, Page 14-26 PDF (112.93 K) | ||||
| Document Type: Research Studies | ||||
| DOI: 10.21608/bfemu.2021.152361 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Mohammed Mosaad* | ||||
| Mechanical Power Engineering Department., Faculty of Engineering., P.O. BOX 52, El-Mansoura University 35516., Mansoura., Egypt. | ||||
| Abstract | ||||
| A transient, two-dimensional heat conduction model for rewetting a hot plate surface by a falling liquid film is developed. It is assumed that the plate thermal properties are Independent on temperature, and the heat transfer coefficient is a constant value in the wet region and zero in the dry region. The mathematical model equations are transformed to a dimensionless form solved numerically . The results indicate that the heat conduction problem in the rewetting process is substantially two-dimensional one, not only for thick plates, I.e., a large Bolt number, but also for a low initial wall temperature. An explicit simple formula for predicting the rewetting velocity is obtained by correlating the numerical results, Comparisons with other studies are made. | ||||
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