Qualitative Comparison between Numerical and Experimental Results of Unsteady Flow in a Radial Diffuser Pump
Comparison between numerical simulation and experimental results for unsteady flow field in a radial diffuser pump is presented for the design operating point. The numerical result is obtained by solving three-dimensional, unsteady Reynolds-averaged ...
Visualization of Turbulent Flow around a Sphere at Subcritical Reynolds Numbers
The shear layer evolution and turbulent structure of near-wake behind a sphere at Re=11,000 and 5,300 were investigated using a smoke-wire visualization method. A laminar flow separation was found to occur near the equator. The smooth laminar shear ...
Time-Resolved PIV Investigation on the Unsteadiness of a Low Reynolds Number Confined Impinging Jet
The flow characteristics in a confined slot jet impinging on a flat plate were investigated in low Reynolds number regime by using time-resolved Particle Image Velocimetry technique. The jet Reynolds number was varied from 404 to 1026, where it is ...
Visualizations of the Transitional Flow Patterns at the Mid-Span between Shrouded Co-Rotating Disks
Transitional air flow patterns at the mid-plane of gap between co-rotating disks in a stationary cylindrical enclosure are visualized under the acceleration condition of disks. The flow visualization is performed using olive oil particles with a laser ...
Oscillatory Thermal Structures in a Reattaching Jet Flow
Spatially varying surface temperature oscillations in a nominally steady reattaching slot jet at a Reynolds number (Re) of 5000 are analyzed using Proper Orthogonal Decomposition (POD) for two nozzle-to-surface spacings, and three exit openings of the ...
Measurement of the Flow and Its Vibration in Japanese Traditional Bamboo Flute Using the Dynamic PIV
All wind instruments produce sound due to the vibration of air inside of the instrument. In the case of a trumpet or a clarinet, the mouth or a reed helps to generate variable tones. In the case of a flute, there is no mechanical vibration. Additional ...
The 9th Asian Symposium on Visualization
The 9th Asian Symposium on Visualization (9ASV) was successfully held in Hong Kong from 4th to 8th June 2007. The total number of 191 participants from 14 countries/regions attended the Symposium, of which 174 were foreign participants worldwide outside ...