摘要
主要研究圆柱形多孔金属橡胶节流元件的渗透性能.利用Darcy定律,建立了层流状态下圆柱形多孔金属橡胶节流元件的雷诺数、体积流量和沿程损失系数的计算公式;推导出表征金属橡胶节流元件渗透性能的最重要的参数———渗透系数的数学表达式;推导了金属橡胶材料孔隙度、最小孔隙度和当量孔隙直径的计算公式;结果表明,圆柱形金属橡胶元件的节流性能与其孔隙度、金属丝直径、样件的外形尺寸等参数密切相关,对金属橡胶材料在节流领域的广泛应用具有重要参考价值.
The throttling performance of columnar metal rubber throttling porous elements is researched in this paper. Based on Darcy theory, the Reynolds coefficient, the volume flux and the calculation expression of loss factor are obtained. The filtration coefficient which is the most important parameter affecting the filtration performance of MR elements is derived. The calculation equation of porosity, the minimal porosity and the equivalent pore diameter of MR are investigated. It is concluded that the filtration performance is relevant closely to the porosity, the diameter of metal wires and the size of elements. The results are of important value for its application in throttling field.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2005年第5期584-586,603,共4页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(50075017)
哈尔滨市青年基金资助项目(2003AFQXJ035).
