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|Title:||Stability of radial swirl flows|
|Citation:||Dou, H.S., Khoo, B.C. (2012). Stability of radial swirl flows. IOP Conference Series: Earth and Environmental Science 15 (PART 1) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/1755-1315/15/1/012004|
|Abstract:||The energy gradient theory is used to examine the stability of radial swirl flows. It is found that the flow of free vortex is always stable, while the introduction of a radial flow will induce the flow to be unstable. It is also shown that the pure radial flow is stable. Thus, there is a flow angle between the pure circumferential flow and the pure radial flow at which the flow is most unstable. It is demonstrated that the magnitude of this flow angle is related to the Re number based on the radial flow rate, and it is near the pure circumferential flow. The result obtained in this study is useful for the design of vaneless diffusers of centrifugal compressors and pumps as well as other industrial devices. © Published under licence by IOP Publishing Ltd.|
|Source Title:||IOP Conference Series: Earth and Environmental Science|
|Appears in Collections:||Staff Publications|
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