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<p>Study of pin on disc lubrication is generally based on isothermal models without taking into account evolution of oil film temperature in surface’s contact. In order to analyze the validity of this hypothesis, this study presents the thermal effects on the hydrodynamic lubrication of the pin on disc contact, using numerical investigations to modeling the oil heating by shear. In contact zone, atmospheric pressure and continuity in heat flow transfer between the oil film and the contact surfaces are used to define the numerical model. The results obtained show that during the disc sliding, if the oil film thickness between the contact parts is low, the oil exhibits a significant heating in the rear part in contact zone which requires it to be taken into account. With a rotational speed 4 m/s, an oil film thickness 6 µm and an oil viscosity 0.1 Pa.s, the heating increase about 17 %.</p>

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CFD analysis of oil heating in pin on disc contact

  • 期刊论文

  • 发表日期：

    2025年5月7日

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  • Maamar Belahcene,
  • Ridha Mazouzi,
  • Mourad Lounis,
  • Mohammed Abbadeni

摘要

Study of pin on disc lubrication is generally based on isothermal models without taking into account evolution of oil film temperature in surface’s contact. In order to analyze the validity of this hypothesis, this study presents the thermal effects on the hydrodynamic lubrication of the pin on disc contact, using numerical investigations to modeling the oil heating by shear. In contact zone, atmospheric pressure and continuity in heat flow transfer between the oil film and the contact surfaces are used to define the numerical model. The results obtained show that during the disc sliding, if the oil film thickness between the contact parts is low, the oil exhibits a significant heating in the rear part in contact zone which requires it to be taken into account. With a rotational speed 4 m/s, an oil film thickness 6 µm and an oil viscosity 0.1 Pa.s, the heating increase about 17 %.