Measurements of Flow in Centrifugal Compressor Diffusers Using a Laser Velocimeter

Effect of Double Row Diffusers on Performance and Flow Field of a Centrifugal Compressor

The present paper reports measurements carried out in a centrifugal compressor equipped with double row of low solidity partial vane diffuser. Performance of the compressor is measured with three sets of double row diffusers with different radial spacing between the diffusers. From these measurements best configurations are identified and static pressures on the diffuser walls and probe measure...

Laser Anemometer Measurements in a Transonic Axial Flow Compressor Rotor

A Sub-Miniature Laser-Doppler Velocimeter for High Speed Flow Measurements

A new laser-Doppler velocimeter (LDV) for high speed flow measurements (three-dimensional flows with speeds greater than 610 m/s) is being developed based in-part upon an existing low speed instrument capable of high resolution, near surface velocity vector measurements. The key technology for the instrument is a sub-miniature laser-Doppler velocimeter (SMLDV); a similar low-speed version of wh...

Measurement and unsteady flow modelling of centrifugal compressor surge

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Optimal Design of a Centrifugal Compressor Impeller Using Evolutionary Algorithms

An optimization study was conducted on a centrifugal compressor. Eight design variables were chosen from the control points for the Bezier curves which widely influenced the geometric variation; four design variables were selected to optimize the flow passage between the hub and the shroud, and other four design variables were used to improve the performance of the impeller blade. As an optimiz...