CAJ | 학술논문

基于三维不可压缩流体的雷诺平均 N -S 方程和 RNG k -ε湍流模型，采用 CFX 软件计算了对某一45°斜式轴流泵装置在额定转速下210 L/s ～370 L/s 流量范围内多个工况点的内部。分析了进、出水流道的流动特性，重点研究了旋转叶轮对进、出水流道内流场及水力性能的影响，预测了泵装置的水力性能。通过计算得出泵装置的水力性能，并与泵装置模型试验结果比较，表明斜式轴流泵在低扬程泵站中具有较优的性能特性。研究结果对低扬程泵站的水力设计具有重要的参考价值。
기우삼유불가압축류체적뢰낙평균 N -S 방정화 RNG k -ε단류모형，채용 CFX 연건계산료대모일45°사식축류빙장치재액정전속하210 L/s ～370 L/s 류량범위내다개공황점적내부。분석료진、출수류도적류동특성，중점연구료선전협륜대진、출수류도내류장급수력성능적영향，예측료빙장치적수력성능。통과계산득출빙장치적수력성능，병여빙장치모형시험결과비교，표명사식축류빙재저양정빙참중구유교우적성능특성。연구결과대저양정빙참적수력설계구유중요적삼고개치。
The internal flow characteristic of a certain 45°slanting axial flow pumping system is analyzed by CFX software and based on the Reynolds averaged N-S equations and RNG k-ε turbulence model.Focusing on the flow characteristic of inlet and outlet passages,the impact of rotating impeller on the flow pattern and hydraulic performance of passages is ana-lyzed based on the calculation of different operating conditions with the flow rates range 210 L/s ~370 L/s at the rated rotating speed.A good performance of the low water-head slanting axial pumping system is achieved by the turbulent nu-merical simulation and model test.The research results have an important reference for the hydraulic optimization design about low water-head pumping stations.