Heat Transfer in a Falling Laminar Liquid Film with in-depth Radiation Absorption

Published

April 11, 2018

Author(s)

Jiann C. Yang, Walter W. Yuen

Abstract

A heat transfer problem involving a steady-state falling liquid film along a vertical wall with an imposed constant heat flux on the liquid film surface and an in-depth thermal radiation absorption in the film layer is analyzed. The liquid film is assumed to be normal to the incident radiative heat flux, and the heat flux is assumed to be parallel and unidirectional. Non-dimensionalized governing equations are formulated and solved numerically. Sample calculations are provided. The effects of pertinent dimensionless parameters on the heat transfer process are demonstrated. The calculated results reveal that the in-depth thermal radiation absorption would play a key role in the heat transfer in the liquid film.

Citation

International Communications in Heat and Mass Transfer

Volume

94

Issue

May

Pub Type

Journals

Download Paper

https://doi.org/10.1016/j.icheatmasstransfer.2018.

Keywords

falling liquid film, heat transfer, thermal radiation

Citation

Yang, J. and Yuen, W. (2018), Heat Transfer in a Falling Laminar Liquid Film with in-depth Radiation Absorption, International Communications in Heat and Mass Transfer, [online], https://doi.org/10.1016/j.icheatmasstransfer.2018. (Accessed October 14, 2025)