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以计算流体动力学(CFD)及流固耦合数值计算理论为基础,对处于高速、高温、高压等高参数极端工况的机械密封摩擦副密封环界面、流体膜及工作流场进行了流固耦合数值计算分析,得到了流体膜流场特性及其对密封环变形、应力、应变的影响;并对圆弧槽动环动压机械密封与无槽动环静压机械密封的流体膜动力特性进行了对比分析,为高参数机械密封动环的进一步优化设计提供依据。
Based on computational fluid dynamics (CFD) and fluid-structure interaction numerical calculation theory, the interface of the seal ring, the fluid film and the working fluid field in the high-speed, high-temperature and high-pressure extreme conditions were fluidized Coupled with the numerical calculation and analysis, the flow field characteristics of the fluid film and its effect on the deformation, stress and strain of the seal ring are obtained. And the dynamic characteristics of the fluid film of the dynamic seal of the circular groove dynamic pressure mechanical seal and the non-grooved ring static pressure mechanical seal The comparative analysis is carried out to provide the basis for further optimization design of high-parameter mechanical seal moving ring.