Coriolis effects on torque transmission of hydro-viscous film in parallel disks with imposed throughflow

Xie, Haibo; Gong, Huasheng; Hu, Liang; Yang, Huayong

doi:10.1016/j.triboint.2017.05.025

Cited by 6 publications

(4 citation statements)

References 20 publications

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“…On the other hand, the relative Coriolis torque loss is defined to valuate the significance of Coriolis effects on hydro-viscous transmission, 15 which is defined as where M¯ 1_NoC and M¯ 2_NoC are viscous torques without Coriolis effects, M¯ 0 is the viscous torque without any motion effects. After further analysis and comparison, we found that the inclined disk groove can decrease the Coriolis resisting torque.…”

Section: Results and Analysismentioning

confidence: 99%

“…For example, in Xie et al. 15 where the disk groove is not considered, the relative Coriolis torque loss ξ is 5.9% with Re = 0.1 and Q¯ i = 6.0, but ξ falls to around 1.0% on the same condition if the disk groove is applied. Actually, it is under the large throughflow rate and the large film thickness that the Coriolis resisting effect becomes obvious, 15 and it is still the same with this research where the corresponding conditions are Q¯ i = 3.4–6.8 and Re = 0.1–0.42.…”

Section: Results and Analysismentioning

confidence: 99%

“…On the other hand, the relative Coriolis torque loss is defined to valuate the significance of Coriolis effects on hydro-viscous transmission, 15 which is defined as…”

Section: Effects Of Groove Orientation On the Coriolis Resisting Torquementioning

confidence: 99%

“…where is the density, v is the radial velocity component, u is the relative rotary speed, and dV is the volume of the fluid particle. Xie et al 15 investigated the Coriolis effect on the hydro-viscous transmission under large throughflow rate. They found that the Coriolis force causes torque loss and efficiency reduction, and the maximum ratio of Coriolis torque loss for all torque loss is up to 80% and the maximum relative Coriolis torque loss is more than 10%, indicating that the Coriolis effect on the hydro-viscous transmission must be highlighted.…”

Section: Introductionmentioning

confidence: 99%

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Effects of groove orientation on transmission characteristics of hydro-viscous film in the parallel-disk system

Gong

Xie

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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The disk groove can greatly influence the hydrodynamic behaviors of the rotating film, especially on the cooling performance and the transmission efficiency. In the present work, the effects of groove orientation on the hydro-viscous transmission of the parallel-disk system are investigated. The Reynolds equation and thermal equation, considering tangential Coriolis effect and temperature–viscosity dependency, are derived and solved. The effects of the groove orientation on the shear stress, load-carrying capacity, viscous torque, and transmission efficiency are analyzed. The results reveal that the Coriolis resisting torque can be restrained but the load-carrying capacity declines if the groove orientation is consistent with the rotating direction, and the variation of the transmission efficiency can even be inverted at the turning point of the groove orientation. Therefore, the effects of groove orientation must be paid more attention in the hydro-viscous transmission.

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Section: Results and Analysismentioning

confidence: 99%

Section: Results and Analysismentioning

confidence: 99%

“…On the other hand, the relative Coriolis torque loss is defined to valuate the significance of Coriolis effects on hydro-viscous transmission, 15 which is defined as…”

Section: Effects Of Groove Orientation On the Coriolis Resisting Torquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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