The Numerical Simulation of Gas Turbine Inlet-Volute Flow Field

Tao Jiang, Kezhen Huang

China Ship Development and Design Center, Wuhan, China.
Military Representative Office at the 426 Shipyad, Dalian, China.

DOI: 10.4236/wjm.2013.34023                

Abstract

The structural and aerodynamic performance of the air inlet volute has an important influence on the performance of the gas turbine. On one hand, it requires the airflow flowing through inlet volute as even as possible, in order to reduce the pressure loss, to avoid a decrease in the effective output power and an increase of the fuel consumption rate of the internal combustion engine which indicate the inefficiency of the entire power unit; On the other hand, it requires the size of the inlet volute to be as small as possible in order to save mounting space and production costs. The thesis builds the structure model and develops flow fields numerical simulation of several different sizes of the inlet volutes. Further, the unreasonable aerodynamic structure is improved according to the flow field characteristics and thereby, a better aerodynamic performance of the inlet volute is obtained.

Keywords

Axial Flow Compressor; Inlet Volute; Numerical Simulation; Pressure Loss; Uneven Degree

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	X. X. Liu, “Some Problems about Design of Industrial Gas Turbine Intake and Exhaust System,” 1983, pp. 2-5.
[2]	K. Q. Wu and J. Huang, “Numerical Analysis of the Fan Volute Internal Vortex Flow,” Engineering Thermophysics, Vol. 22, No. 3, 2001, pp. 316-319.
[3]	K. 1lillewaert and R. A. Vanden Braembussche, “Numerical Simulation of Impeller-Volute Interaction in Centrifugal Compressors,” ASME Journal of Turbomachinery, Vol. 121, No. 7, 1999, pp. 603-608.
[4]	E. Ayder and R. A. Van den Braembussche, “Experimen tal Study of the Swirling Flow in the Internal Volute of a Centrifugal Compressor,” ASME Paper No.1991.1991 GT-7.
[5]	E. Ayder and R. A. Van den Braembussche, “Numerical Analysis of the Three-Dimensional Swirling Flow in Centrifugal Compressor Volute,” ASME Journal of Turbo machinery, Vol. 116, 1994, pp. 462-468.
[6]	W. G. Zhang, “Flow Impact on the Distribution of Centrifugal Pump Volute Pressure and Speed,” Petroleum Machinery Press, 2000, pp. 10-12.
[7]	F. Shi and H. Tsukamoto, “Numerical Study of Pressure Fluctuations Caused by Impeller-Diffuser Interaction Dif fuser Pump stage,” ASME Journal of Fluid Engineering, Vol. 128, No. 1, 2001, p. 123.