Numerical analysis of conjugate natural convection and surface radiation in an enclosure with local heat source

Semen G. Martyushev, Mikhail A. Sheremet

Результат исследований: Материалы для журналаСтатья

12 Цитирования (Scopus)

Выдержка

Mathematical simulation of natural convection and surface radiation in a square cavity having heat-conducting walls of finite thickness with a heat source located at the bottom of the cavity in convective heat exchange with an environment has been carried out. Numerical analysis has been based on a solution of the two-dimensional Boussinesq equations in the dimensionless variables such as stream function, vorticity, and temperature. Main attention was paid to the effects of Rayleigh number 104 ≤ Ra ≤ 106, an emissivity of internal surfaces of walls 0 ≤ ε < 1, a thermal conductivity ratio 1 ≤ k1,2 ≤ 15, a thickness of walls 0.1 ≤ l/L ≤ 0.3, and a dimensionless time 0 ≤ τ ≤ 100 on the velocity and temperature fields. The effect scales of the key parameters on the average Nusselt numbers have been determined.

Язык оригиналаАнглийский
Страницы (с-по)11-25
Число страниц15
ЖурналComputational Thermal Sciences
Том5
Номер выпуска1
DOI
СостояниеОпубликовано - 2013

Отпечаток

Natural Convection
Enclosure
Heat Source
enclosure
heat sources
Enclosures
Natural convection
Dimensionless
free convection
numerical analysis
Numerical analysis
Numerical Analysis
Cavity
Heat
Radiation
Scale Effect
Emissivity
Boussinesq Equations
Stream Function
Nusselt number

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Computational Mathematics
  • Fluid Flow and Transfer Processes
  • Surfaces and Interfaces

Цитировать

Numerical analysis of conjugate natural convection and surface radiation in an enclosure with local heat source. / Martyushev, Semen G.; Sheremet, Mikhail A.

В: Computational Thermal Sciences, Том 5, № 1, 2013, стр. 11-25.

Результат исследований: Материалы для журналаСтатья

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