強制対流サブクール沸騰におけるOSV条件のモデル化に関する一考察

抄録

Using the available knowledge on the flow regime transition from bubbly flow to slug flow in gas-liquid two-phase flow, it was postulated that global bubble coalescence occurs when the bubble layer void fraction near the heated wall reaches the critical value to cause the onset of significant void (OSV) in subcooled flow boiling. The values of liquid subcooling at OSV predicted based on this assumption agreed with those by Saha and Zuber’s correlation, suggesting that the postulated mechanism of OSV is plausible.