The trim exponents vary with the fluid viscosity and impellerdiameterratio at same time.
切割指数同时随着切割后的直径比和液体粘度变化而变化。
2
There is a relationship between the trim exponents and impellerdiameterratio, namely the exponents vary with the ratio.
叶轮切割指数与直径比的确存在着某种关系,也就是切割指数随着切割后的直径比的变化而变化。
3
Final design scheme is confirmed after economic and technical analyse. Then, axial fan 's stage type, impellerdiameter, hub ratio , specific speed and the number of blades are decided.