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Table 9 Oil properties for the different cases

From: CFD simulations of gearboxes: implementation of a mesh clustering algorithm for efficient simulations of complex system’s architectures

Parameter

Symbol and unit

Oil 1 (spur gears)

Oil 2 (helical gears)

Oil 3 (spiral bevel gears)

Kinematic viscosity 40 °C

\( \nu\ \left[\frac{\mathrm{m}{\mathrm{m}}^2}{\mathrm{s}}\right] \)

6.6

32

101.5

Kinematic viscosity 100 °C

\( \nu\ \left[\frac{\mathrm{m}{\mathrm{m}}^2}{\mathrm{s}}\right] \)

1.1

5.4

17.1

Density at 40 °C

\( \rho\ \left[\frac{\mathrm{kg}}{{\mathrm{m}}^3}\right] \)

824.5

855

850