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Thermohydraulics of the liquid films in rotating heat pipes

Kamel Hooman (School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Qld, Australia)
Mohammad Reza Safaei (Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam and Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam)
Hussein Togun (Department of Biomedical Engineering, University of Thi-Qar, Nassiriya, Iraq)
Mahidzal Dahari (Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia)

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Article publication date: 7 June 2019

Issue publication date: 22 May 2020




In this study, closed-form solutions are presented to investigate thermohydraulics of liquid films in a rotating heat pipe. The film thickness is expressed as a function of flow rate.


Further, sensitivity of both film thickness and flow rate to the length of the rotating heat pipe can now be investigated using the explicit expressions presented here.


To make it easier for practical application, an approximate solution is presented on top of the exact solution.


Both approximate and exact solutions are then applied to note that results are in good agreement when compared to those available in the literature.



Conflict of interest: The authors declare that there is no conflict of interest regarding the publication of this paper.

Dr Mahidzal Dahari gratefully acknowledges the GPF058A-2018 and University of Malaya, Malaysia, for the support in conducting this research work.


Hooman, K., Safaei, M.R., Togun, H. and Dahari, M. (2020), "Thermohydraulics of the liquid films in rotating heat pipes", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 30 No. 6, pp. 2861-2866.



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