CAJ | 학술논문

随着CFD的快速发展，使利用流体软件对复杂流场内部流体流态分析成为可能，采用单相流及气液两相流混合模型对轴流转桨式水轮机叶片周围流场进行了数学模拟计算。计算研究结果表明，数值模拟结果与实际情况十分吻合，从计算云图中可以清晰地看出转轮叶片各部的压力分布，为水轮机气蚀原因分析提供了较好的依据。
수착CFD적쾌속발전，사이용류체연건대복잡류장내부류체류태분석성위가능，채용단상류급기액량상류혼합모형대축류전장식수륜궤협편주위류장진행료수학모의계산。계산연구결과표명，수치모의결과여실제정황십분문합，종계산운도중가이청석지간출전륜협편각부적압력분포，위수륜궤기식원인분석제공료교호적의거。
With the rapid development of CFD, it is now possible to analyze the inner flow state of flow field by specific soft-ware. We use single-phase flow and gas-liquid two phase flow model to simulate the flow field adjacent to blades of Kaplan hydro-turbine. The computational results are well consistent with the practical condition, providing clear pressure distribution on the blades. Thus it can lay a solid foundation for cavitation causes analysis of hydro-turbines.