Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2003.11a
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- Pages.502-507
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- 2003
A Fundamental Study of the Subsonic Spiral Jet
아음속 스파이럴 제트 유동에 관한 기초적 연구
Abstract
Spiral jet is characterized by a wide region of the free vortex flow with a steep axial velocity gradient, while swirl jet is largely governed by the forced vortex flow and has a very low axial velocity at the jet axis. However, detailed generation mechanism of spiral flow components is not well understood, although the spiral jet is extensively applied in a variety of industrial field. In general, it is known that spiral jet is generated by the radial flow injection through an annular slit which is installed at the inlet of convergent nozzle. The objective of the present study is to understand the flow characteristics of the spiral jet, using a computational method. A finite volume scheme is used to solve 3-dimensional Navier-Stokes equations with RNG
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