Experimental study and mathematical simulation of the mixed convection in a rectangular area with a local heat source and the heat sink at the external boundaries

Vyacheslav I. Maksimov, Dmitriy A. Nagornov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The results of the experimental determination of temperatures and numerical simulation of temperature fields in a mixed convection in a rectangular area with a heatconducting walls at a local energy source on the bottom are presented. For the experimental determination of temperature fields in a mixed convection method of thermocouple measurements was used. Studies were conducted at Reynolds numbers 10 ≤ Re ≤ 1500 and Rayleigh 103 ≤ Ra ≤ 105. For the verification of obtained experimental data mathematical simulation of mixed convection in the region with the use of a software package Comsol Multiphysics is carried out. A good agreement between the results of experimental determination of the local characteristics of mixed convection in a rectangular volume with a local source of energy and heat-conducting walls with theoretical consequences obtained in the simulation of convective flows using a mathematical package is established. It makes it possible to make a conclusion about the possibility of application or the analysis of flow conditions of viscous heat-conducting gas of experimental procedure based on methods of thermocouple measurements. At the same time the developed approach to the experimental study of mixed convection is applicable in a wide enough range of the main flow parameters and the experimental conditions.

Original languageEnglish
Title of host publicationEPJ Web of Conferences
PublisherEDP Sciences
Volume76
DOIs
Publication statusPublished - 2014
EventConference on Thermo-Physical Basis of Energy Technologies - Tomsk, Russian Federation
Duration: 16 Oct 201418 Oct 2014

Other

OtherConference on Thermo-Physical Basis of Energy Technologies
CountryRussian Federation
CityTomsk
Period16.10.1418.10.14

Fingerprint

heat sinks
heat sources
convection
thermocouples
simulation
temperature distribution
conduction
heat
convective flow
energy sources
Reynolds number
computer programs
gases
temperature
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Experimental study and mathematical simulation of the mixed convection in a rectangular area with a local heat source and the heat sink at the external boundaries. / Maksimov, Vyacheslav I.; Nagornov, Dmitriy A.

EPJ Web of Conferences. Vol. 76 EDP Sciences, 2014. 01005.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Maksimov, VI & Nagornov, DA 2014, Experimental study and mathematical simulation of the mixed convection in a rectangular area with a local heat source and the heat sink at the external boundaries. in EPJ Web of Conferences. vol. 76, 01005, EDP Sciences, Conference on Thermo-Physical Basis of Energy Technologies, Tomsk, Russian Federation, 16.10.14. https://doi.org/10.1051/epjconf/20147601005
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