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Butterfly valves are widely used as on-off and control valves for industrial process. The importance of butterfly valves as control valves has been increasing because the pressure loss is smaller than other types of valves and compactness is very desirable for installation. These features are desirable for saving energy and high efficiency of instruments. Butterfly valves have been adopted...
It is known that an oscillating foil can produce a thrust force through the generation of a reverse Kármán vortex street and this can be expected to be a new highly effective propulsion system. A heaving foil model was made and it was operated within a circulating water channel. The wake formation behind the heaving foil was visualized using PIV method and a dynamic thrust force was measured using...
Absract To visualize the simulation and experimental data, the fluid dynamics scientists and engineers have to possess a powerful visualization engine with CG package in their laboratories. We developed a Problem Solving Environment (PSE) system called “PIV Web Visualization System” to solve this obstacle, using computational grid common service tool “Globus”, programming language Java and Java Servlet...
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