Generation mechanism of micro-bubbles in a pressurized dissolution method

• Published in: Experimental thermal and fluid science Vol. 60; pp. 201 - 207
• Main Authors: Maeda, Yasunari, Hosokawa, Shigeo, Baba, Yuji, Tomiyama, Akio, Ito, Yoshihiro
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.01.2015
• Subjects: Anemometry; Bubble diameter; Bubble number density; Cavitation; Density; Dissolution; Doppler effect; Liquids; Micro-bubble; Multiphase flow; Nozzles; PDA; Pressurized dissolution method; Bubble number density; Multiphase flow; Micro-bubble; Bubble diameter; Cavitation; Pressurized dissolution method

•Micro-bubbles are generated when cavitation occurs in the decompression nozzle.•Mean diameter of micro-bubbles increases with dissolved gas concentration xGD∗.•Bubble number density depends on xGD∗ only when bubble cavitation takes place.•Micro-bubbles are mainly generated by shrink of vapor bubble...