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1 article(s) from Yao, Zhenqiang

Numerical investigation of the tribological performance of micro-dimple textured surfaces under hydrodynamic lubrication

Kangmei Li,
Dalei Jing,
Jun Hu,
Xiaohong Ding and
Zhenqiang Yao

Beilstein J. Nanotechnol. 2017, 8, 2324–2338, doi:10.3762/bjnano.8.232

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Figure 1: Three-dimensional geometric model of fluid in a micro-dimple array and a single micro-dimple unit.

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Figure 2: The computational domain.

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Figure 3: The division of the fluid domain in the micro-dimple unit.

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Figure 4: Variations of the dimensionless average film carrying force and the computing time.

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Figure 5: The typical meshed model of a micro-dimple unit.

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Figure 6: Pressure distribution on the upper wall of the lubricant in the micro-dimple unit.

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Figure 7: Pressure distribution of the cross-sectional area of the lubricant in a micro-dimple unit.

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Figure 8: The pressure distribution on the upper wall for (a) Re = 5, (b) Re = 50 and (c) Re = 250.

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Figure 9: Effect of Reynolds number on the pressure distribution on the middle section of the micro-dimple un...

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Figure 10: Effect of texture density and aspect ratio on the dimensionless average film carrying force for (a) ...

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Figure 11: Variation of the fluid velocity in the micro-dimple unit with (a) λ = 0.025, (b) λ = 0.075, (c) λ =...

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Figure 12: Effect of texture density and aspect ratio on the dimensionless average film shear force for (a) Re...

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Figure 13: Effect of texture density and aspect ratio on the friction coefficient for (a) Re = 5, (b) Re = 50 ...

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Figure 14: Effect of Reynolds number on (a) the dimensionless average film carrying force, (b) the dimensionle...

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Figure 15: Effect of Reynolds number on the optimum texture density and optimum aspect ratio.

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Full Research Paper

Published 06 Nov 2017

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