Numerical Investigation for the Impact of Single Groove on the Stall Margin Improvement and the Unsteadiness of Tip Leakage Flow in a Counter-Rotating Axial Flow Compressor

A low-speed counter-rotating axial flow compressor (CRAC) with single circumferential grooved casing treatment (CT) was investigated numerically. Both steady and time-accurate numerical calculations were performed to study the effects of the single grooved CTs over the rear rotor on the stability enhancement and the unsteadiness of tip leakage flow (TLF) in the CRAC. Parametric studies indicate that the best position of the single groove should be located near about 20% axial tip chord in terms of the stall margin improvement (SMI). The coincidence of the effective CT locations and the high fluctuating region on blade pressure surface in the smooth wall case shows that the unsteadiness of TLF plays an important role in the stall inception process. Frequency analysis for the static pressure signals near the blade tip shows that both the disappearance of the low frequency components and the suppression of unsteady TLF are beneficial to the SMI. Detailed observation of the flow structures illustrates that the action of the grooves on the different parts of TLF is responsible for the difference of SMI in the CTs. It is more effective to improve the flow stability by controlling the critical TLF released from near the mid-chord.

[1]  Jichao Li,et al.  The stall inceptions in an axial compressor with single circumferential groove casing treatment at different axial locations , 2016 .

[3]  Feng Lin,et al.  Flow Structures in the Tip Region for a Transonic Compressor Rotor , 2010 .

[4]  P. Spalart.  A One-Equation Turbulence Model for Aerodynamic Flows , 1992 .

[5]  X. Mao,et al.  Numerical study of the unsteady behaviors and rotating stall inception process in a counter-rotating axial compressor , 2016 .

[6]  G. Jothiprasad,et al.  Control of Tip-Clearance Flow in a Low Speed Axial Compressor Rotor With Plasma Actuation , 2012 .

[7]  Farid Bakir,et al.  Experimental Study of the Instationary Flow Between Two Ducted Counter-Rotating Rotors , 2013 .

[8]  PeterSchimming.  Counter Rotating Fans—An Aircraft Propulsion for the Future？ , 2003 .

[9]  Shin-Hyoung Kang,et al.  Numerical Study on the Effects of Casing Treatment on Unsteadiness of Tip Leakage Flow in an Axial Compressor , 2012 .

[10]  Weixiong Chen,et al.  Effects of tip clearance size on the performance and tip leakage vortex in dual-rows counter-rotating compressor , 2015 .

[11]  Ruiyu Li,et al.  Unsteady Investigation on Tip Flow Field and Rotating Stall in Counter-Rotating Axial Compressor , 2015 .

[12]  Masahiro Inoue,et al.  Unsteady Flow Behavior due to Breakdown of Tip Leakage Vortex in an Axial Compressor Rotor at Near-Stall Condition , 2000 .

[13]  Huu Duc Vo.  Role of tip clearance flow on axial compressor stability , 2001 .

[14]  P. B. Sharma,et al.  Effect of Casing Treatment on Aerodynamic Performance of a Contrarotating Axial Compressor Stage , 1990 .

[15]  A. M. Pradeep,et al.  Experimental assessment on effect of lower porosities of bend skewed casing treatment on the performance of high speed compressor stage with tip critical rotor characteristics , 2017 .

[16]  Chetan S. Mistry,et al.  Influence of Circumferential Inflow Distortion on the Performance of a Low Speed, High Aspect Ratio Contra Rotating Axial Fan , 2014 .

[17]  Feng Lin,et al.  Numerical Investigation on the Self-Induced Unsteadiness in Tip Leakage Flow for a Transonic Fan Rotor , 2010 .

[19]  Yohan Jung,et al.  Effects of recessed blade tips on stall margin in a transonic axial compressor , 2016 .

[20]  Joshua David Cameron.  Stall inception in a high-speed axial compressor , 2007 .

[21]  Kenneth S. Breuer,et al.  Active Control of Tip Clearance Flow in Axial Compressors , 2005 .

[22]  Nicolas Gourdain,et al.  Simulation of rotating stall in a whole stage of an axial compressor , 2010 .

[23]  P. B. Sharma,et al.  A Study of Some Factors Affecting the Performance of a Contra-Rotating Axial Compressor Stage , 1988 .

[24]  Chaoqun Nie,et al.  The Self-Induced Unsteadiness of Tip Leakage Vortex and Its Effect on Compressor Stall Inception , 2007 .

[25]  Guillermo Paniagua,et al.  Full Design of a Highly Loaded and Compact Contra-Rotating Fan Using Multidisciplinary Evolutionary Optimization , 2013 .

[26]  Masahiro Inoue,et al.  Unsteady three-dimensional flow phenomena due to breakdown of tip leakage vortex in a transonic axial compressor rotor , 2004 .

[27]  Kazutoyo Yamada,et al.  An Explanation for Flow Features of Spike-Type Stall Inception in an Axial Compressor Rotor , 2012 .

[28]  Graham Pullan,et al.  Origins and structure of spike-type rotating stall , 2012 .

[29]  Du Juan,et al.  The Impact of Casing Groove Location on Stall Margin and Tip Clearance Flow in a Low-Speed Axial Compressor , 2016 .

[30]  Huu Duc Vo.  Rotating Stall Suppression in Axial Compressors with Casing Plasma Actuation , 2010 .

[31]  Chaoqun Nie,et al.  Further Investigation on Transonic Compressor Stall Margin Enhancement With Stall Precursor-Suppressed Casing Treatment , 2016 .

[32]  Aamir Shabbir,et al.  Flow Mechanism for Stall Margin Improvement due to Circumferential Casing Grooves on Axial Compressors , 2005 .

[33]  W. Neise,et al.  Closure to “Discussion of ‘An Experimental and Numerical Investigation into the Mechanisms of Rotating Instability’ ” (2002, ASME J. Turbomach., 124) , 2002 .

[34]  Nicolas Gourdain,et al.  Numerical simulation of rotating stall in a subsonic compressor , 2006 .

[35]  Ivor Day,et al.  Stall, Surge, and 75 Years of Research , 2016 .

[36]  Jack L. Kerrebrock,et al.  Design and Test of an Aspirated Counter-Rotating Fan , 2008 .

[37]  Xiaohua Liu,et al.  An Evaluation Approach for the Stall Margin Enhancement With Stall Precursor-Suppressed Casing Treatment , 2015 .

[38]  Christian Cornelius,et al.  Compressor Efficiency Variation With Rotor Tip Gap From Vanishing to Large Clearance , 2012 .

[39]  Ke Shi,et al.  A Computational Fluid Dynamics Study of Circumferential Groove Casing Treatment in a Transonic Axial Compressor , 2014 .

[40]  Bo Liu,et al.  Experimental investigation of a counter-rotating compressor with boundary layer suction , 2015 .

[41]  Mehdi Vahdati,et al.  Recovery Process from Rotating Stall in a Fan , 2011 .

[42]  X. Mao,et al.  Numerical investigation of the unsteady flow behaviors in a counter-rotating axial compressor , 2016 .

[43]  Marius Swoboda,et al.  Numerical Investigation of End Wall Boundary Layer Removal on Highly Loaded Axial Compressor Blade Rows , 2008 .

[45]  Chunill Hah,et al.  An Experimental and Numerical Investigation into the Mechanisms of Rotating Instability , 2001 .

[46]  Xu Dong,et al.  Effects of Rotating Inlet Distortion on Compressor Stability With Stall Precursor-Suppressed Casing Treatment , 2015 .