微小重力環境下の気液二相流の界面輸送 Experimental study on axial development of bubbly flow under normal- and micro-gravity environment
In view of the great importance of two geometrical parameters such as void fraction and interfacial area concentration to the accurate two-phase flow analysis at microgravity conditions, axial developments of flow parameters such as void fraction, interfacial area concentration, bubble Sauter mean diameter, and bubble number density were measured by image-processing in bubbly flow at microgravity and low liquid Reynolds number conditions where the gravity effect on the flow parameters were pronounced. Negligible bubble breakup was observed because of weak turbulence under tested flow conditions. The velocity profile entrainment effect under microgravity was likely to be comparable to the wake entrainment effect under normal gravity in the tested flow conditions.
- 可視化情報学会誌. Suppl.
可視化情報学会誌. Suppl. 24(1), 117-120, 2004-07-01
The Visualization Society of Japan