Issue |
MATEC Web Conf.
Volume 328, 2020
XXII. International Scientific Conference – The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy 2020 (AEaNMiFMaE-2020)
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Article Number | 02022 | |
Number of page(s) | 10 | |
Section | Modelling and Simulation in Fluid Mechanics and Energy | |
DOI | https://doi.org/10.1051/matecconf/202032802022 | |
Published online | 18 November 2020 |
Experimental and Numerical Investigation of the Thermal Transition Area at the Heated Bottom-Wall of a Horizontal Rectangular Channel
1 Technical University of Liberec, Department of Power Engineering Equipment, Studentská 2, 460 01 Liberec, Czech Republic
2 Institute of Thermomechanics of the Czech Academy of Sciences, Dolejškova 5, 182 00 Prague 8, Czech Republic
* Corresponding author: jaroslav.pulec@tul.cz
This article represents a part of an ongoing work on the preparation of an experimental rectangular channel for the PIV and LIF measurements of vortex structures and temperature field in a non-isothermal water flow. The main aim of the current study is to develop a sufficiently accurate simplified numerical model of the real problem. The basic requirements for thermal properties of heated bottom-wall are specified. In the computational model, there are several simplifications such as 2D case and a constant temperature of a heated surface along the longitudinal coordinate. Results of the numerical simulation of the fluid flow and heat transfer are verified on the experimental data obtained in a laboratory channel with the same geometry and similar flow conditions. The presented results helped to define additional requirements on the design of a new experimental channel intended for investigation of the flow instabilities in a non-isothermal liquid flow.
© The Authors, published by EDP Sciences, 2020
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