Abstract
This study was designed to investigate the behaviour of a steam-driven turbulent jet in subcooled water. The total pressures along the axis of the jet were measured under various steam mass fluxes, water temperatures and nozzle sizes. The results indicated that the lifting-pressure coefficient decreased with inlet steam pressure and water temperature, and an optimal lifting-pressure coefficient could be obtained at pressure ratio 0.228. Then an empirical correlation based on the influencing factors was given to fit the position of the maximum pressure. Moreover, the velocity profiles in the turbulent jet region were obtained, and the results showed the self-similarity property of the velocity profiles. An empirical correlation was suggested to correlate the jet half width obtained from the velocity profiles.
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