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- Title
Calculation of the drag and heat transfer from a sphere in the gas flow in a cylindrical channel.
- Authors
Simakov, N.
- Abstract
A numerical experiment on the simulation of heat transfer from a sphere to a gas flow in a cylindrical channel in the Stokes and transient flow regimes has been described. Radial and axial profiles of the gas temperature and the dependences of drag coefficient C of the body and Nusselt number Nu on Reynolds number Re have been calculated and analyzed. The problem of the influence of the early drag crisis for a sphere on its heat transfer to the gas flow has been considered. The estimation of this phenomenon has shown that the early drag crisis of the sphere in a strongly turbulent flow causes a reduction in heat transfer from the sphere to the gas by three to six times (in approximately the same proportion as for its drag coefficient).
- Subjects
GAS flow; HEAT transfer; NUSSELT number; REYNOLDS number; TURBULENT flow; DRAG coefficient
- Publication
Technical Physics, 2016, Vol 61, Issue 9, p1312
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/S1063784216090231