弹簧劲度系数对单向阀开启过程的影响仿真研究

利用FLUENT软件UDF及动网格技术,研究了弹簧劲度系数对单向阀开启过程影响,结果表明:开启过程中第一次往复振荡幅度相对较大,第二次往复振荡后阀芯位置几乎稳定;弹簧劲度系数与阀芯达到的最大位移、平衡位置位移呈线性递减关系;阀芯达到最大位移处及平衡位置处所用时间随着弹簧劲度系数的增大逐渐减小;稳定时入口和出口之间压差随着弹簧劲度系数的增加线性递增.

The Simulation of the Impact on the Opening of One-way Valve due to Spring Stiffness Coefficient

The method of UDF and dynamic mesh of FLUENT software is used to research the impact on the opening of one-way valve due to spring stiffness coefficient. The research results have certain actual value.The results indicated that the reciprocating vibration amplitude is large relatively for the first time,the valve core is almost stable for the second time;The balance displacement and the maximum displacement which the valve core got will reduce linearly when the spring stiffness coefficient increase;The time which the valve core takes by reaching the balance position and the maximum position will reduce linearly when the spring stiffness coefficient increase;When the flow field is steady,the net pressure between inlet and outlet will increase linearly when the spring stiffness coefficient increase.