抄録
The mixing phenomena of a density stratified fluid by a jet flow in a tank are experimentally investigated. The jet issues vertically upward from a circular nozzle mounted at the bottom of the tank into the density stratified fluid composed of water and salt water. The jet Reynolds number Re varies from 80 to 4200, and the salt density ranges from 2 to 8 percent. This study classifies the jet behavior into three patterns according to Re and the density difference between the two fluids. The patterns are discussed in relation with the mixing phenomena caused by the jet.
