[논문]Tip gap flow characteristics in a turbine cascade equipped with pressure-side partial squealer rims

Lee, S.W.; Lee, S.E.

doi:10.1016/j.ijheatfluidflow.2014.09.008

[해외논문] Tip gap flow characteristics in a turbine cascade equipped with pressure-side partial squealer rims

The International journal of heat and fluid flow, v.50, 2014년, pp.369 - 377

Lee, S.W. , Lee, S.E.

Abstract ▼ AI-Helper

Tip gap flow characteristics and aerodynamic loss generations in a turbine cascade equipped with pressure-side partial squealer rims have been investigated with the variation of its rim height-to-span ratio (hp/s) for a tip gap height of h/s=1.36%. The results show that the tip gap flow is characterized not only by the incoming leakage flow over the pressure-side squealer rim but also by the upstream flow intrusion behind the rim. The incoming leakage flow tends to decelerate through the divergent tip gap flow channel and can hardly reach the blade suction side upstream of the mid-chord, due to the interaction with the upstream flow intrusion as well as due to the flow deceleration. A tip gap flow model has been proposed for hp/s=3.75%, and the effect of hp/s on the tip surface flow is discussed in detail. With increasing hp/s, the total-pressure loss coefficient mass-averaged all over the present measurement plane decreases steeply, has a minimum value for hp/s=1.88%, and then increases gradually. Its maximum reduction with respect to the plane tip result is evaluated to be 11.6%, which is found not better than that in the cavity squealer tip case.

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참고문헌 (32)

J. Fluids Eng. Abernethy 107 161 1985 10.1115/1.3242450 ASME measurement uncertainty

상세보기
J. Turbomach. Ameri 123 704 2001 10.1115/1.1400114 Heat transfer and flow on the blade tip of a gas turbine equipped with a mean camberline strip

상세보기
J. Turbomach. Ameri 122 272 2000 10.1115/1.555444 Heat transfer and flow on the first-stage blade tip of a power generation gas turbine: Part 2 - simulation results

상세보기
J. Turbomach. Ameri 120 753 1998 10.1115/1.2841786 Effect of squealer tip on rotor heat transfer and efficiency

상세보기
J. Turbomach. Azad 122 717 2000 10.1115/1.1308567 Heat transfer and pressure distributions on a gas turbine blade tip

상세보기
J. Turbomach. Azad 122 725 2000 10.1115/1.1311284 Heat transfer and flow on the squealer tip of a gas turbine blade

상세보기
J. Turbomach. Bindon 111 257 1989 10.1115/1.3262264 The measurement and formation of tip clearance loss

상세보기
J. Turbomach. Bindon 114 198 1992 10.1115/1.2927985 The development of axial turbine leakage loss for two profiled tip geometries using linear cascade data

상세보기
J. Turbomach. Bunker 122 263 2000 10.1115/1.555443 Heat transfer and flow on the first-stage blade tip of a power generation gas turbine: Part 1 - experimental results

상세보기
J. Turbomach. Camci 127 14 2005 10.1115/1.1791279 Aerodynamics of tip leakage flows near squealer rims in an axial flow turbine stage

상세보기
J. Turbomach. Heyes 114 643 1992 10.1115/1.2929188 The effect of blade tip geometry on the tip leakage flow in axial turbine cascades

상세보기
J. Turbomach. Key 128 213 2006 10.1115/1.2162183 Comparison of turbine tip leakage flow for flat tip and squealer tip geometries at high speed conditions

상세보기
J. Turbomach. Krishnababu 131 2009 Aerothermal investigations of tip leakage flow in axial flow turbine - Part 1: effect of tip geometry and tip clearance gap
Int. J. Heat Mass Transf. Kwak 47 5651 2004 10.1016/j.ijheatmasstransfer.2004.07.029 Effect of rim location, rim height, and tip clearance on the tip and near tip region heat transfer of a gas turbine blade

상세보기
J. Turbomach. Kwak 125 778 2003 10.1115/1.1626684 Heat transfer coefficients on the squealer tip and near-tip regions of a gas turbine blade with single or double squealer

상세보기
Exp. Thermal Fluid Sci. Lee 32 1440 2008 10.1016/j.expthermflusci.2008.03.004 Effects of squealer rim height on aerodynamic losses downstream of a high-turning turbine rotor blade

상세보기
Int. J. Heat Fluid Flow Lee 30 198 2009 10.1016/j.ijheatfluidflow.2008.12.009 Tip gap height effects on flow structure and heat/mass transfer over plane tip of a high-turning turbine rotor blade

상세보기
Int. J. Heat Mass Transf. Lee 52 5922 2009 10.1016/j.ijheatmasstransfer.2009.07.015 Effects of incidence angle on endwall convective transport within a high-turning turbine rotor passage

상세보기
Exp. Fluids Lee 49 713 2010 10.1007/s00348-010-0849-5 Tip gap height effects on aerodynamic performance of a cavity squealer tip in a cascade in comparison with plane tip results: Part 2 - aerodynamic losses

상세보기
Exp. Fluids Lee 49 1039 2010 10.1007/s00348-010-0848-6 Tip gap height effects on aerodynamic performance of a cavity squealer tip in a cascade in comparison with plane tip results: Part 1 - tip gap flow structure

상세보기
Exp. Thermal Fluid Sci. Lee 35 135 2011 10.1016/j.expthermflusci.2010.08.014 Tip leakage aerodynamics over stepped squealer tips in a turbine cascade

상세보기
Int. J. Heat Fluid Flow Lee 34 36 2012 10.1016/j.ijheatfluidflow.2011.11.008 Aerodynamic performance of winglets covering the tip gap inlet in a turbine cascade

상세보기
Int. J. Heat Fluid Flow Lee 45 23 2014 10.1016/j.ijheatfluidflow.2013.11.006 The effect of full coverage winglets on tip leakage aerodynamics over the plane tip in a turbine cascade

상세보기
J. Eng. Gas Turbines Power Li 136 043601 2014 10.1115/1.4025918 Squealer tip leakage flow characteristics in transonic condition

상세보기
J. Turbomach. Matsunuma 128 166 2006 10.1115/1.2103091 Effects of Reynolds number and free-stream turbulence on turbine tip clearance flow

상세보기
ASME J. Turbomach. Mischo 130 2008 10.1115/1.2775485 Flow physics and profiling of recessed blade tips: impact on performance and heat load

상세보기
J. Turbomach. Nasir 126 221 2004 10.1115/1.1731416 Effect of tip gap and squealer geometry on detailed heat transfer measurements over a high pressure turbine rotor blade tip

상세보기
J. Turbomach. Newton 128 300 2006 10.1115/1.2137745 Heat transfer and aerodynamics of turbine blade tips in a linear cascade

상세보기
J. Turbomach. Sjolander 109 237 1987 10.1115/1.3262090 Effects of tip clearance on blade loading in a planar cascade of turbine blades

상세보기
J. Turbomach. Tallman 123 314 2001 10.1115/1.1368881 Numerical simulation of tip leakage flow in axial flow turbines, with emphasis on flow physics: Part I-effect of tip clearance height

상세보기
ISA Trans. Treaster 18 23 1979 The calibration and application of five-hole probes
J. Turbomach. Yamamoto 111 264 1989 10.1115/1.3262265 Endwall flow/loss mechanisms in a linear turbine cascade with blade tip clearance

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[해외논문] Tip gap flow characteristics in a turbine cascade equipped with pressure-side partial squealer rims

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[해외논문] Tip gap flow characteristics in a turbine cascade equipped with pressure-side partial squealer rims

Abstract ▼ AI-Helper

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