Abstract
A dynamic PIV technique developed under the support of KAKENHI (14205031,Prof. Hayami at Kyushu University) is applied to a submerged circular impinging jet flow of water at a Reynolds number of 11,600. The complex turbulent flows have been rcsolved at 2kHz with 1024×1024 pixcle with horizontal and vertical cuts of the flow field. It is demonstrated that the time-and space-resolved PIV measurement can provide unprecedentedly large amount of information about turbulent flow fields, the information from which not only the statistical quantitics but also the time evolution of turbulence structures is extracted. The quantitative validity of the measurement is confirmed by the comparison with the data reported previously.
