紊流流体管路分段集中参数键图模型研究

STUDY ON A SECTIONAL LUMPED PARAMETER MODEL USING BOND GRAPHS FOR TURBULENT PIPELINES

对传统管路分段集中参数模型进行修正 ,通过引进动摩擦液阻 ,提出了适用于紊流管路的分段集中参数键图模型。仿真曲线和试验曲线吻合较好 ,表明所提出的管路模型具有足够的精度。该模型结构简单 ,计算参数少 。

Based on the improvement on the conventional sectional lumped parameter bond gra ph and introduction of the kinetic friction factor,a new sectional lumped parame ter model using bond graphs for turbulent line is worked out.Experimental result s showed that the goodness of identity between the simulation curves and the exp erimental curves is comparatively ideal,which implies that the new model has ade quate accuracy. The new model has less calculated parameters,simpler structure,an d is suitable for modeling complex line systems