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Effect of intermittency on thickness and heat transfer of turbulent falling liquid film

Effect of intermittency on thickness and heat transfer of turbulent falling liquid film A model for calculating the thickness and heat transfer of a turbulent film moving under the action of gravity and the shear stress of friction of a gas flow is constructed. The aim of this work is to supplement the previously proposed simple model of turbulent viscosity using a cubic law of damping in a viscous sublayer and a logarithmic asymptotic velocity far from the wall with additional linear damping near the free surface and to take into account the damping of turbulent transfer caused by intermittency of turbulence in flowing wave films of liquid. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Effect of intermittency on thickness and heat transfer of turbulent falling liquid film

Thermophysics and Aeromechanics , Volume 28 (2) – Jul 18, 2021

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References (20)

Publisher
Springer Journals
Copyright
Copyright © P. I. Geshev 2021
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/s0869864321020049
Publisher site
See Article on Publisher Site

Abstract

A model for calculating the thickness and heat transfer of a turbulent film moving under the action of gravity and the shear stress of friction of a gas flow is constructed. The aim of this work is to supplement the previously proposed simple model of turbulent viscosity using a cubic law of damping in a viscous sublayer and a logarithmic asymptotic velocity far from the wall with additional linear damping near the free surface and to take into account the damping of turbulent transfer caused by intermittency of turbulence in flowing wave films of liquid.

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: Jul 18, 2021

Keywords: falling liquid film; turbulence; intermittency; damping; gas flow friction; heat transfer and film thickness

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