Effect of nozzle geometry on the flow characteristics of spiral flow generated through an annular slit |
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| Authors: | Shigeru Matsuo Tae-Hun Kim Toshiaki Setoguchi Heuy Dong Kim Yeon-Won Lee |
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| Affiliation: | (1) Department of Mechanical Engineering, Saga University, 1, Honjo-machi, Saga-shi, Saga 840-8502, Japan;(2) Graduate school of Science and Technology, Saga University, 1, Honjo-machi, Saga shi, Saga 840-8502, Japan;(3) School of Mechanical Engineering, Andong National University, 388, Songchun-dong, Andong, 760749, Korea;(4) School of Mechanical Engineering, College of Engineering, Pukyong National University, San 100, Yong-Dang Dong, Busan, Korea |
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| Abstract: | In comparison with previous researches of swirling flow,spiral flow generated in the spiral nozzle has some different flow characteristics.It does not need a forced tangential momentum to generate its velocity and has some different merits from the swirling flow such as long potential core and low tangential velocity.In this study,the effect of noz- zle geometry on the flow characteristics in spiral nozzle was investigated by experiment and computation.As a result, the flow characteristics obtained by experiment has a satisfactory agreement with computational results,quantita- tively and qualitatively. |
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| Keywords: | nozzle flow characteristics momentum numerical simulation |
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