CAJ | 학술논문

混流式水轮机轴向水推力是机组设计的重要参数，其值的准确性对机组的安全运行具有重要的现实意义。本文提出一个新的混流式水轮机轴向水推力的计算公式，可计算不同工况下的轴向水推力。结合某水电站运行参数分别利用该公式、C FD数值模拟和解析计算3种方法进行了轴向水推力的比较计算，并对这3种方法进行了对比分析。结果表明，该公式计算简便，与流量、水头、转速等参数结合紧密，具有良好的计算精度。
혼류식수륜궤축향수추력시궤조설계적중요삼수，기치적준학성대궤조적안전운행구유중요적현실의의。본문제출일개신적혼류식수륜궤축향수추력적계산공식，가계산불동공황하적축향수추력。결합모수전참운행삼수분별이용해공식、C FD수치모의화해석계산3충방법진행료축향수추력적비교계산，병대저3충방법진행료대비분석。결과표명，해공식계산간편，여류량、수두、전속등삼수결합긴밀，구유량호적계산정도。
The axial hydro-thrust of Francis turbine is an important data in unit design ,and its accurate calculation has an important practical significance .A new formula that can calculate axial hydro-thrust of Francis turbine under different working conditions is put forward in this paper .Then based on the operational parameters of a hydropower station ,three calculation methods are used to cal‐culate axial hydro-thrust and a comparative analysis is made and they are the formula ,CFD numerical simulation and analytic calcula‐tion .The results show that the formula is simple in computation and closely combined with parameters like flow ,head and speed , and its calculation accuracy is good .