Six components of time averaged Reynolds stress and mean flow field were measured in the model wind tunnel simulating leakage vortex of the turbomachinery. Reynolds stresseses are transformed into their principal coordinate, in which a component of maximum eigenvalue is expressed by a cylinder projected onto the measuring plane. Lateral vortex under adverse pressure condition shows wake like structure while the vortex under no-pressure gradient exhibits no-interference structure with mainstream. Correlation of Reynolds stress and rate of strain tensor is evaluated to express the spatial arrangement of these tensors. Production of turbulent kinetic energy distributes mainly in the shear layers of the leakage jet.

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Wing in Ground Effect will be able to utilize not only for conventional WIG crafts, but also for new ground transportation, such as Aero-Train, and some other fluid mechineries. Here we will discuss about the possibility of WIG effect.

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An integrated system of micro windmill has been developed for use in our life setting. The performance of the windmill was tested and especially, its characteristics were studied by PIV technique. The diameter of micro wind turbine is 500 mm. This micro wind turbine is a unit of integrated wind energy system. The micro turbine has features as large solidity and long chord length. The measurement was carried out with 3×1.8m^2 wind tunnel at the wind speed in the range from 3 to 10m/sec. Twin YAG laser was employed to the measurement.

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