Direct numerical simulation of turbulent heat transfer in annuli: Effect of heat flux ratio
β Scribed by M. Ould-Rouiss; L. Redjem-Saad; G. Lauriat
- Book ID
- 108140753
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 666 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0142-727X
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π SIMILAR VOLUMES
Heat transfer in a channel of rough wall is simulated in this work. Two kinds of roughness are considered, i.e., one assumes sandgrain roughness based on roughness model and the other regularly arranged two-dimensional ribs. No models other than sand-grain roughness implemented in the simulation. Fo
A direct numerical simulation is performed for turbulent heat transfer in a concentric annulus at Re D h ΒΌ 8900 and Pr ΒΌ 0:71 for two radius ratios (R 1 =R 2 ΒΌ 0:1 and 0.5) and wall heat flux ratio q Γ ΒΌ 1:0. Main emphasis is placed on the transverse curvature effect on near-wall turbulent thermal s