Study on Total Pressure Losses Characteristics of Rotating Cavity with Radial Inflow of Different Drum Hole Shape

Abstract:

The pressure losses characteristics of the rotating cavity with radial inflow were investigated by testing method. The rotating cavity with oblong and round drum holes inlet and outlet total pressure under different operational state were tested, the influence of non-dimensional mass flow rate and rotating Reynolds number on rotating cavity with a Radial Inflow of different drum holes were analyzed. The results show that total pressure losses of the rotating cavity increases with the rotating Reynolds number and flow coefficient. Structure with oblong drum holes is superior to structure with round drum holes with lower total pressure losses in the range of the ratio of the flow coefficient and the Reynolds number is less than 0.048.And structure with round drum holes is superior to structure with oblong drum holes with lower total pressure losses in the range of the ratio of the flow coefficient and the Reynolds number is less than 0.048.

• Periodical: Advanced Materials Research (Volume 663)
• Pages: 483-489
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.663.483
• Online since: February 2013
• Authors: Bo Ning, Xiang Luo, Ye Feng, Xiao Chen, Li Jun Wu
• Keywords: Drum Hole Shape, Flow Coefficient, Radial Inflow, Rotating Cavity, Rotating Reynolds Number, Total Pressure Losses

References

[1] Owen J M, Pincombe J R, Rogers R H. Source- sink Flow Insidea Rotating Cylindrical Cavity [J]. FluidMechanism, 1985, 155: 233- 265.

DOI: 10.1017/s0022112085001793

[2] Firouzian M, Owen J M, Pincombe J R, et al. Flow and HeatTransfer in a Rotating Cavity with a Radial Inflowof Fluid Part 1: The Flow Structure [J]. International Journal of Heat and FluidFlow, 1985, 6(4): 228- 234.

DOI: 10.1016/0142-727x(85)90054-2

[3] Firouzian M, Owen J M, Pincombe J R, et al. Flow and HeatTransfer in a Rotating Cylindrical Cavity with a Radial Inflow ofFluid Part 2: Velocity, Pressure and Heat Transfer Measurements[J]. International Journal of Heat and Fluid Flow, 1986, 7 (1): 21- 27.

DOI: 10.1016/0142-727x(86)90037-8

[4] Chew W, Snell J. Prediction of the Pressure Distribution forRadial InflowBetween Co- rotating Discs[R]. ASME 88- GT- 61.

[5] Brillert D, Lieser D, Reichert A W，Simon H. Total pressure losses in rotor systems with radial inflow[R]. ASME paper No. 2000-GT-0283, May (2000).

DOI: 10.1115/2000-gt-0283

[6] Johnson Bruce V, Lin J D, Daniels William A, et al. FlowCharacteristics and Stability Analysis of Variable Density RotatingFlows in Compressor Disk Cavities [R]. ASME2004-GT-54279.

[7] YU Xiao, HUANG Tao, DENG Ming-chun, CHAI Jun-sheng; Study on Total Pressure Losses Characteristics of Rotating Cavity with Radial Inlet and Axial Outflow [J]; avicaeroengine; Vol. 37 No. 2 Apr. (2011).

[8] YU Xiao; LU Hai-ying; SHEN Yi; LI Yi; Research of Flow and Heat Transfer in a Rotating Cavity with a Radial Inflow [J]; Special for Aeroengine Technology; 2011/04.