CFD在涡轮钻具机械性能预测分析中的应用

Prediction Analysis of Mechanical Performance of Turbine Drill Based on CFD

文中采用实体建模、CFD前置处理器等工具真实、准确地建立涡轮定、转子单周期跨叶片流道计算模型,应用CFD(计算流体动力学)技术研究分析了其在不同转速下的内流场。对模拟出的涡轮叶栅内流场,重点分析了转子叶片表面压力场的分布情况,并将模拟结果与十级涡轮台架的实验数据进行了对比,证明了应用CFD技术对涡轮钻具叶栅内流场模拟分析的有效性,为涡轮钻具机械性能预测分析提供了一种有力的技术手段。

The CFD model with one single periodic flow-path of turbine drill is set up accurately by model tools. The internal flow field is studied by CFD technology under different rotational speed. The pressure on rotor blade surface is majorly analyzed according to the simulation results, and compared the simulation results with the experimental data. It has proven that the CFD technology is valid for the simulation of turbine drill. So it should offer a strong technological means for predicting meehauieal performance of turbine drill.