Frontiers of Mechanical Engineering >
Rheological behavior’s effect on the work performance of oil film
Received date: 10 Oct 2010
Accepted date: 19 Dec 2010
Published date: 05 Jun 2011
Copyright
A 3D model of hydrostatic turntable’s oil chamber is established to investigate the lubricants performance with different rheological properties by using FLUENT software and the finite volume method. Newtonian oil and non-Newtonian oil’s performance under varied speeds are compared on the large size hydrostatic turntable system considering the temperature-viscosity relationship and pressure-viscosity relationship. The results show that the property of non-Newtonian fluid viscosity influenced by shear rate largely affects the lubricants performance for most oil added polymer additives. Lubricants cannot simply be regarded as Newtonian fluid. The shear thickening non-Newtonian fluid has a better work property. The results are important to design a large size and high-speed hydrostatic support system, choose lubricant oils, and investigate oil film’s work properties.
Key words: non-Newtonian fluid; rotation speed; pressure on wall; viscosity
Zhaomiao LIU , Qiuying JIN , Chengyin ZHANG , Feng SHEN . Rheological behavior’s effect on the work performance of oil film[J]. Frontiers of Mechanical Engineering, 2011 , 6(2) : 254 -262 . DOI: 10.1007/s11465-011-0129-y
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