Abstract
In this study, experimental and numerical investigations on the baroclinic torque, which is produced by pressure gradient and density gradient are made in two dimensional heterogeneous density flow field with interaction between a vortex pair and low density region. First high speed photograpy and PIV measurement with pulsed YAG laser and CW laser in order to observe the vortex-heterogeneous-denstiy-flow interaction between two dimensional vortex pair and low density region. Next numerical simulation using discrete vortex method is performed taking the baroclinic torque into consideration.
