동력기계공학회지 (Journal of Power System Engineering)

  • 제18권3호
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  • Pages.79-86
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  • 2014
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  • 2713-8429(pISSN)
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  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
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수평채널 내 고 점성유체의 볼텍스 유동에 관한 3차원 수치해석(1)

Three-Dimensional Numerical Study on the Vortex Flow in a Horizontal Channels with High Viscous Fluid

  • 투고 : 2014.04.17
  • 심사 : 2014.06.05
  • 발행 : 2014.06.30
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초록

Mixed convective vortex flow in the three-dimensional rectangular channel filled with high viscous fluid(Pr=909) is investigated computationally under various operating conditions. The Reynolds number is varied from 0 to $5{\times}10^{-1}$, the Rayleigh number from $10^3$ to $5{\times}10^4$. The three-dimensional governing equations are discretized using the finite volume method. The effects of Reynolds number and Rayleigh number are presented and discussed. From a parametric study, it is found that vortex flow pattern of mixed convection in rectangular channels can be classified into three flow patterns basically, but the new vortex flow structures containing wave rolls are found, which are affected by Rayleigh number and Reynolds number. From this results, we can draw a flow regime map to delineate various vortex flow patterns in the high viscosity fluid mixed convective flow.

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참고문헌

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피인용 문헌

  1. Three-Dimensional Numerical Study on the Vortex Flow in a Horizontal Channels with High Viscous Fluid(2) vol.19, pp.4, 2015, https://doi.org/10.9726/kspse.2015.19.4.036
  2. Experimental Study on Vortex Flow in a Rectangular Channel(1) vol.22, pp.2, 2018, https://doi.org/10.9726/kspse.2018.22.2.037
  3. 액정을 이용한 3차원 사각채널 내 혼합대류의 정량적 가시화 vol.20, pp.6, 2014, https://doi.org/10.9726/kspse.2016.20.6.051
  4. Three-Dimensional Numerical Study on the Mixed Convection in Inclined Rectangular Channels vol.23, pp.2, 2014, https://doi.org/10.9726/kspse.2019.23.2.020