On the Throughflow with Swirling Inflow in Annular Diffuser

Yu Ji-lun; Yang Zhao-gang; Wang Ming-de

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Article Navigation > Applied Mathematics and Mechanics > 1992 > 13(3): 223-235

Yu Ji-lun, Yang Zhao-gang, Wang Ming-de. On the Throughflow with Swirling Inflow in Annular Diffuser[J]. Applied Mathematics and Mechanics, 1992, 13(3): 223-235.

Citation:

Yu Ji-lun, Yang Zhao-gang, Wang Ming-de. On the Throughflow with Swirling Inflow in Annular Diffuser[J]. Applied Mathematics and Mechanics, 1992, 13(3): 223-235.

Citation:

Yu Ji-lun, Yang Zhao-gang, Wang Ming-de. On the Throughflow with Swirling Inflow in Annular Diffuser[J]. Applied Mathematics and Mechanics, 1992, 13(3): 223-235.

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On the Throughflow with Swirling Inflow in Annular Diffuser

1.
Shanghai University of Technology, Shanghai Applied Mathematics and Mechanics Institute, Shanghai;
2.
Chengdu Electrical Power Machine Works, Chengdu;
3.
Xi'an Jiaoiong University, Xi'an

Received Date: 1991-01-18
Publish Date: 1992-03-15

Abstract

Abstract

In this paper, a throughflow with swirling in flow in an annular diffuser is calculated. Under the assumption of small cross-flow, the flow near inner and outer wall surfaces is calculated based on the three-dimensional momentum integral equation of the boundary layer. The potential flow outside the boundary layer is computed by means of the iteration method based on the velocity gradient equation along the quasi-orthogonal direction of the meridional projection of the stream-line on the meridional surface and the constancy of flux equation^[1]. The numerical results agree with the experiments quite well. This method is useful for analyzing the through flow with pre-swirl in the annular diffuser.
- annular diffuser,
- swirling inflow,
- three-dimensional boundary layer,
- small cross-flow

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References(7)

References

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[2]	金元敏明,璨状イフコーザー内の流れ,日本机械学会论文集,47(422)(昭和56-10), 1940-1946
[3]	White, F. M., Viscous Fluid Flow, McGrawHill Co. (1974).
[4]	生井武文、井上雅弘,《粘性流体の力学》,束京理工学社(1978)
[5]	Mager, A., Generation of boundary layer momentum-integral equations to three-dimension flow including those of rotating system, NACA TN-2310.
[6]	Fabian, J. M. and G. C. Oates, The boundary layer inside a conical surface due to a swirling flow with throughflow, J. of Appl. Mech., Trans. ASME, Dec. (1976), 564-566.
[7]	Parr, O., Untersuchengen der dreidimensionalen Gerenzschicht an rotierenden Drehkorpern bei axialer Anstromung, Ing. Arch., 32 (1963), 393-413.