Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)
- Volume 23 Issue 3
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- Pages.342-351
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- 1999
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- 1226-4881(pISSN)
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- 2288-5324(eISSN)
DOI QR Code
Characteristics of an Entrainment into the Turbulent Buoyant Jet in a Cross Flow
직교류에서 난류제트로 유입되는 유량에 관한 고찰
- Received : 1998.06.16
- Published : 1999.03.01
Abstract
A jet injected normally into a cross flow has been found to have the cross section of a horseshoe shape. It occurs by a twin vortex motion in the region downstream of the jet injection. Such a flow is inherently and highly three-dimensional and numerical calculations should play an important role. The three-dimensional momentum equations with buoyancy effect and energy equation are solved to obtain the velocity distributions, center-line trajectories, cross sectional shape and entrainment. The density difference is sufficiently small, so that the Boussinesq approximation is considered to be valid. The SIMPLE algorithm is applied in a staggered grid system of a calculational domain for the numerical method.
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