Top PDF The effect of tip clearance flows on performance of axial flow compressors
The effect of tip clearance flows on performance of axial flow compressors
... 9 AVERAGE WORK COEFFICIENT AS A FUNCTION OF TIP CLEARANCE FOR VARIOUS FLOW RATES.[r] ...
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Performance Evaluation of the Tandem C4 Blades for Axial-Flow Compressors
... the flow when the second blade of the tandem blades is positioned in the "no gap nozzle effect", Figure ...the flow behavior along the ...the axial and tangential displacements of the ...
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An Experimental Characterization of Tip Leakage Flows and Corresponding Effects on Multistage Compressor Performance
... The effect of rotor tip clearances in turbomachinery applications has been a primary research interest for nearly 80 ...increased tip clearance in axial flow compressors ...
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Tip-clearance effects in axial compressors
... in compressors with small clearance is vorticity shed from a flow separation at the leading edge of the rotor ...small tip-clearance, the vortex is swept across the blade passage and ...
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Tip clearance flows in axial compressors: stall inception and stability enhancement
... The following discussion will briefly review past stall inception investigation methodology in light of the new observations made in the present study. As was discussed in Section 2.3.2 of the Literature Review, most ...
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Simulation and Optimization of an Axial Compressor Considering Tip Clearance Flow
... the performance prediction of an axial compressor ...fluid. Performance parameters such as total pressure ratio and polytropic efficiency predicted using the low-Reynolds model show a closer ...
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Investigation of Unsteady Tip Clearance Flow in Axial Compressor Rotor
... the effect of discrete micro tip injection on unsteady tip clearance flow pattern in an isolated axial compressor rotor is presented, intending to better understand the ...
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Numerical simulations of rotating stall in axial flow compressors
... overall performance for mass flow, temperature ratio and isentropic efficiency are the ...global performance was not significantly affected by the damaged blade. Flow blockage was only found ...
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Evaluation of Heat Flux by varying Tip Clearance Flow in Axial Compressor Rotor using Thermal Analysis
... the effect of unsteady tip clearance flow in axial compressor rotor used in an industrial gas ...the tip clearance ...of axial compressor rotor is drawn in ...
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Effects of Double-Leakage Tip Clearance Flow on the Performance of a Compressor Stage with a Large Rotor Tip Gap
... rotor tip gap on the performance of a one and half stage axial compressor are investigated in detail with a numerical simulation based on LES and available PIV ...main flow physics, including ...
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Investigation of Unsteady Tip Clearance Flow in a Low-Speed One and Half Stage Axial Compressor with LES And PIV
... The effect of the rotor tip gap size on the compressor flow field has been widely ...the tip gap is increased in axial ...the flow at near stall operation with a large tip ...
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23217.Axial-Flow Compressors a Strategy for Aerodynamic Design and Analysis
... the tip clearance-to-staggered spacing ratios for all experimental data in ...end-wall flow model, these references provide important insight into the end-wall boundary layer ...
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Investigation of Effect of Tip Clearance in Centrifugal Compressor
... of tip clearance is smaller once the diffuser dimension is reduced, or the pinch is ...the effect of tip clearance pinched diffusers are less ...diffusers compressors are less ...
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Effect of Axial Clearance on the Flow Structure around a Rotating Disk Enclosed in a Cylindrical Casing
... swirling flow around a rotating disk in a cylin- drical ...The flow develops in the radial clearance between the disk tip and the side wall of the casing as well as in the axial ...
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EXPERIMENTAL ANALYSIS OF TIP CLEARANCE AND CHORD LENGTH FOR OPTIMUM DESIGN OF AXIAL FLOW FAN IN AIR COOLED HEAT EXCHANGER
... Wahiba Yaici , Mohamed Ghorab, Evgueniy Entchev et al [4] In the present paper a numerical study was performed to predict the influences of the inlet air flow distribution on the performance of heat ...
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Effect of counter-rotating fan’s speed matching on stall inception and characteristics of tip clearance flow
... as axial inflow are specified as the inlet boundary condition; while the static pressure is specified at the outlet assuming radial ...fan flow field at near-stall point, so far there is no accurate ...
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Clearance management in twin screw compressors
... 31 abstracted geometric parameters could be directly used for efficient optimisation of profile thermodynamic performance. Of the leakage paths shown in Figure 2-5, the radial gap and interlobe gap are directly ...
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EFFECT OF RADIAL AND AXIAL CLEARANCE ON THE PERFORMANCE OF A SPECIALLY DESIGNED SAVONIUS VERTICAL AXIS WIND TURBINE
... The performance of a conventional Savonius rotor (that has a half circle shaped of 180° blade arc angle, without shaft and with zero clearance) was experimentally tested under the same experimental ...
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Four quadrant axial flow compressor performance
... significant effect on the solution towards which the model ...but flow is forced through it in the design direction, then the compressor operates in the second of the two modes possible in the fourth ...The ...
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Analysis Effect of Duct Length– Nozzle Diameter Ratio and Tip Clearance Variation on the Performance of K-Series Propeller
... Irfan Syarif Arief 1 , Tony Bambang Musriyadi 2 ,Ahmad Dwi Arta Je Mafera 3 , Abstract one type of ship propeller is a ducted propeller. Ducted propellers are propellers with sheath or duct that can increase thrust on ...
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