Secondary flow phenomena in diagonal flow impellers

Tae Whan Kim, Masato Furukawa, Motoo Kuroumaru, Youichi Ando, Shin ichi Higuchi, Masahiro Inoue

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

Abstract

The measurements of flow fields have been performed by changing tip clearance and flow rate for two diagonal flow impellers with different vortex types, a free vortex type and a vortex type of constant tangential velocity. This paper presents overall behaviors of the secondary flow in the diagonal flow impellers to offer available data for modeling of spanwise mixing due to the secondary flow. The characteristics of the secondary flow are that, in comparison with axial flow impellers, the leakage vortex roll-ups are not seen clearly and the low energy region caused by the tip leakage flow is larger. As the tip clearance increases, the low energy region near the casing becomes larger and shifts toward the suction side of the blade. The low energy region tends to move from the pressure side to the suction side with decrease of the flow rate. For the impeller with a vortex type of constant tangential velocity, there exists a strong secondary flow due to the spanwise loading distribution.

Original languageEnglish
Title of host publicationMemoirs of the Kyushu University, Faculty of Engineering
Pages417-431
Number of pages15
Volume52
Edition4
Publication statusPublished - Dec 1992

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Impellers
Secondary flow
Vortex flow
Flow rate
Axial flow
Flow fields

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Kim, T. W., Furukawa, M., Kuroumaru, M., Ando, Y., Higuchi, S. I., & Inoue, M. (1992). Secondary flow phenomena in diagonal flow impellers. In Memoirs of the Kyushu University, Faculty of Engineering (4 ed., Vol. 52, pp. 417-431)

Secondary flow phenomena in diagonal flow impellers. / Kim, Tae Whan; Furukawa, Masato; Kuroumaru, Motoo; Ando, Youichi; Higuchi, Shin ichi; Inoue, Masahiro.

Memoirs of the Kyushu University, Faculty of Engineering. Vol. 52 4. ed. 1992. p. 417-431.

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

Kim, TW, Furukawa, M, Kuroumaru, M, Ando, Y, Higuchi, SI & Inoue, M 1992, Secondary flow phenomena in diagonal flow impellers. in Memoirs of the Kyushu University, Faculty of Engineering. 4 edn, vol. 52, pp. 417-431.
Kim TW, Furukawa M, Kuroumaru M, Ando Y, Higuchi SI, Inoue M. Secondary flow phenomena in diagonal flow impellers. In Memoirs of the Kyushu University, Faculty of Engineering. 4 ed. Vol. 52. 1992. p. 417-431
Kim, Tae Whan ; Furukawa, Masato ; Kuroumaru, Motoo ; Ando, Youichi ; Higuchi, Shin ichi ; Inoue, Masahiro. / Secondary flow phenomena in diagonal flow impellers. Memoirs of the Kyushu University, Faculty of Engineering. Vol. 52 4. ed. 1992. pp. 417-431
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