Journal of Power System Engineering (동력기계공학회지)
- Volume 2 Issue 1
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- Pages.31-38
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- 1998
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- 2713-8429(pISSN)
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- 2713-8437(eISSN)
Numerical Simulation of a Conical Diffuser Using the Nonlinear $k-{\epsilon}$ Turbulence Model
비선형 $k-{\epsilon}$ 난류모델에 의한 원추형 디퓨저 유동해석
Abstract
A diffuser, an important equipment to change kinetic energy into pressure energy, has been studied for a long time. Though experimental and theoretical researches have been done, the understanding of energy transfer and detailed mechanism of energy dissipation is unclear. As far as numerical prediction of diffuser flows are concerned, various numerical studies have also been done. On the contrary, many turbulence models have constraint to the applicability of diffuser-like complex flows, because of anisotropy of turbulence near the wall and of local nonequilibrium induced by an adverse pressure gradient. The existing
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