We present experimental results on the analysis of turbulent velocity measurements in the flow that develops in the gap between two coaxial counter-rotating disks (von K£rm£n swirling flow). In the absence of a well-defined mean velocity we introduce the use of a "local Taylor hypothesis" to obtain spatial information from hot-wire measurement at a fixed location. The results are in agreement w...

Swirling flows are related to the spiral motion in the tangential direction in addition to the axial and radial direction using several swirl generators. These type of flows are used in combustion chambers to improve flame stability, heat exchanger to enhance heat transfer coefficients, agricultural spraying machines and some vertical pipes to move slurries or transport of materials. However, o...

The swirling flow in a diffuser has been studied using the stereo PIV technique. DANTEC hardware and software were used for experiment. water pipe inlet set spinning by introducing tangential jet flow. Both piping of circular cross-section, however casing had rectangular (square) cross-section. plane measurement was located perpendicular to within diffuser. two cameras with Scheinpflug lens mou...

For the assessment of the left ventricle (LV), echocardiography has been widely used to visualize and quantify geometrical variations of LV. However, echocardiographic image itself is not sufficient to describe a swirling pattern which is a characteristic blood flow pattern inside LV without any treatment on the image. We propose a mathematical framework based on an inverse problem for three-di...