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Read e-book online Compressor instability with integral methods PDF

By Eddie Y.K. Ng, N. Y. Liu

ISBN-10: 3540724117

ISBN-13: 9783540724117

ISBN-10: 3540724125

ISBN-13: 9783540724124

This ebook brings jointly the fast fundamental techniques and advances within the box for the prediction of stall and surge difficulties within the compressor. The publication comes in handy for individuals concerned with the stream research, layout and checking out of rotating equipment. for college kids, it may be used as a really expert subject of senior undergraduate or graduate learn. The ebook may also function self-study material.

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06 ! ALFA 30 1 Chapter 1 Study on the Propagation of Inlet Flow Distortion ALFA(2,1)=ALFA(1,1) ! BETA ALFA(3,1)=1. ALFA0 ALFA(4,1)=ALFA(3,1) ! 0 ! PRESSURE SI0=SITA1 SITA0=SITA1*PI/180. 001 AL1=ALFA(1,1) 10 CK1=Y(1)*ALFA(1,1) ! K1 CK0=CK1+(1-CK1/ALFA(1,1))*ALFA(3,1) ! *(FX1*FX2*FX3*FX4+FX5*FX6*FX7*FX8) ! *(FX1*FX2*FY1*FX4-FX5*FX6*FY2*FX8) ! * & ! * & ****** ! FY,0/U0**2 (FX01*FX02*FY01*FX04-FX05*FX06*FY02*FX08) END OF FORCE CALCULATION ******** ********************************************************** ****** CK2=CK1*(CK1-CK0)/(ALFA(1,I-1)-CK1)**2 !

K31,K32,K33,K34,K35 DO 400 K=1,5 400 A(K)=ALFA(K,I-1)+RK(3,K,I) F(1,I)=(FXU(I)-FX0U(I))/(CK3*A(1)) F(2,I)=FYU(I)/(GAMA*A(1)) F(3,I)=CK2*F(1,I) F(4,I)=FY0U(I)/(GAMA*A(3))-A(4)/A(3)*CK2*F(1,I) F(5,I)=(FXU(I)-F(1,I))/(GAMA**2*2) DO 401 K=1,5 401 RK(4,K,I)=DX*F(K,I) DO 105 K=1,5 ! *(RK(2,K,I)+RK(3,K,I))+RK(4,K,I))/6. 5) CLOSE(1) 220 STOP END ******************************************************* Chapter 2 Stall Prediction of In-flight Compressor due to Flaming of Refueling Leakage near Inlet In this chapter, the critical distortion line and the integral method explained in Chap.

Neumeier, Y. , 2006, Development and demonstration of a stability management system for gas turbine engines. ASME Turbo Expo, GT200690324, Barcelona, Spain, May 8-11, 2006. Chue, r. , 1989, Calculations of inlet distortion induced compressor flow field instability. International Journal of Heat and Fluid Flow, 10(3): 211-223. J. , 1993, Active suppression of rotating stall and surge in axial compressors. ASME Journal of Turbomachinery, 115: 40-47. , Shin, H-W. , 2006, A stochastic model for a compressor stability measure.

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Compressor instability with integral methods by Eddie Y.K. Ng, N. Y. Liu

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