基于CFD方法的阻抗式调压室阻抗系数研究

运用CFD的方法对T型分岔管和有连接管的阻抗式调压室模型进行了数值模拟。经比较得出，数值模拟计算所得的调压室阻抗系数与模型试验得到的经验值基本一致，表明CFD方法可以运用于调压室设计。通过对比研究发现调压室连接管的长短只影响调压室沿程阻力损失，与局部阻力损失并没有关系。

Based on the CFD method to study the impedance surge chamber resistance coefficient

The T type bifurcation pipe and connection pipe impedance surge chamber model was studied by numerical simulation. Using numerical simulation method, the computed surge impedance coefficient and model test experience value is consistent, Show that the CFD method can be applied to the design of surge chamber. Trough compariation ,show that surge chamber connecting pipe length affects only the surge chamber friction loss, not affect the local resistance loss.