都市域の安定成層大気中に発生するプルームの挙動に関する実験的研究

抄録

The behavior of plumes in a stably stratified fluid layer is experimentally investigated by using the flow visualization techniques.
Flow patterns are classifi ed into the following four regimes by means of the densimetric Froude number, a) two-cells convection b) transition c) steady plume with weak convection d) unsteady plume with thermals. Also, the characteristics of plumes, namely, height of plumes, velocity of upward flows and period of thermals are clarified.