An Application of Particle Image Velocimetry/Thermometry (PIV/T) in Baroclinic Vortex Measurement

The objective of this paper is to investigate the phenomenon of vortex under thermal effect and background vorticity, especially the path and intensity of vortex passing through hot/cold zone. The generations of vortices at relative locations or latitudes are carefully conducted by sinking methods. The vortex is moved from deep water to shallow water because of the inclined bottom plate with hot/cold zone. The vortex path is observed by dye-induced method qualitatively. Moreover, the velocity, vorticity, and temperature of the fluid field are obtained by Particle Tracking velocimtry (PTV) and Particle Image Velocimetry/ Thermometry (PIV/T) quantitatively.
By conclusion of series of experiments, the path of the cold vortex which passes through cold zone is northerner than that through ambient-temperature zone. Moreover, the path of the vortex passing through ambient-temperature zone is northerner than that through warm zone.