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- Q17155089 subject Q8875428.
- Q17155089 abstract "Three-dimensionality in turbomachine increases complexity in flow field so, determination of losses becomes difficult unlike two-dimensional losses where equation complexity is little. Three-dimensionality includes large pressure gradients in every direction, design/curvature of blade, shock wave, heat transfer, cavitation and viscous effects, which generates secondary flow, vortices, tip leakage vortices and other losses. Viscous effects in turbomachinery causes blockage to the flow by formation of viscous layers around blade profile which effect pressure rise/fall and reduce effective area of flow field. Interaction between these losses in rotor increase instability and decreases in efficiency of turbomachinery. In calculation of three-dimensional losses every parameter comes into picture of flow path like axial spacing between vane and blade rows, end wall curvature, radial distribution of pressure gradient, hup/tip ratio, dihedral, lean, tip clearance, flare, aspect ratio, skew, sweep, platform cooling holes, surface roughness, off take bleeds. Associated with blade profile like camber distribution, stagger angle, blade spacing, blade camber, chord, surface roughness, leading and trailing edge radii, maximum thickness. So, correlations are dependent on so many parameter it becomes difficult to correlate. Correlation based on geometric similarity has been developed by many industries in form of charts, graphs, data statistics and performance data. Two-dimensional losses are easily evaluated by Navier-Stokes code but three-dimensional losses are difficult to evaluate so, correlation is used. Three-dimensional losses are mainly classified as: Three-dimensional profile losses Three-dimensional shock losses Secondary flow Endwall losses in axial turbomachinery Tip leakage flow losses".
- Q17155089 thumbnail Effect_of_three_dimensional_profile_losses_on_efficiency_of_turbomachinery.png?width=300.
- Q17155089 wikiPageExternalLink 2.491?journalCode=aiaaj.
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- Q17155089 wikiPageExternalLink scholar?q=three+dimensional+losses+and+correlation+in+turbomachinery&btnG=&hl=en&as_sdt=0%2C5&as_vis=1.
- Q17155089 wikiPageExternalLink annurev.fl.05.010173.001335.
- Q17155089 wikiPageExternalLink 1662-introduction-to-3d-wings.
- Q17155089 wikiPageExternalLink TQ210R-E.PDF.
- Q17155089 wikiPageWikiLink Q1043944.
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- Q17155089 wikiPageWikiLink Q8875428.
- Q17155089 comment "Three-dimensionality in turbomachine increases complexity in flow field so, determination of losses becomes difficult unlike two-dimensional losses where equation complexity is little. Three-dimensionality includes large pressure gradients in every direction, design/curvature of blade, shock wave, heat transfer, cavitation and viscous effects, which generates secondary flow, vortices, tip leakage vortices and other losses.".
- Q17155089 label "Three-dimensional losses and correlation in turbomachinery".
- Q17155089 depiction Effect_of_three_dimensional_profile_losses_on_efficiency_of_turbomachinery.png.