Journal
HEAT AND MASS TRANSFER
Volume 47, Issue 8, Pages 981-990Publisher
SPRINGER
DOI: 10.1007/s00231-011-0868-7
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Funding
- Dutch Technology Foundation STW
- NWO
- Ministry of Economic Affairs
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The temperature fields in the center plane of a channel with a square cross-section have been measured. Steam injected at relatively low mass fluxes through a small hole in one of the walls of the channel condensed intermittently in a small area close to the inlet. The upstream temperature of the liquid cross-flow, T (L) , the momentum ratio, J, and the Prandtl number proved to be important for the single-phase temperature field induced in the jet further away from the steam inlet. Jet centerlines of velocity and temperature are measured and positions are compared. Different locations for J < 100 and low T (L) are explained from dependencies on Reynolds and Prandtl numbers. Next to the jet centerline a second high-temperature zone was found to occur, close to the wall and downstream of the steam inlet. The importance of capillary forces is investigated with the aid of 3D CFD computations.
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