Study of Groove Parameters on the Hydrodynamic Behavior of Spiral-Grooved Thrust Bearing with Gas Lubricant

Table 1

Simulation parameters of the spiral-grooved thrust bearing.

Parameters	Value	Parameters	Value
Based radius (mm)	12.5	Inner radius (mm)	13.75 (0.6), 15.6 (0.7), 16.25 (0.8), 7.5 (0.9)
Outer radius (mm)	25	Spiral angle (°)	15, 20, 25, 30
Groove number ()	16	Rotational speed (rpm)	20000, 40000, 60000, 80000
Land depth (mm)	0.011	Groove width ratio	0.6, 0.8, 1, 1.2
Groove depth (mm)	0.033	Gas viscosity (mPa·s)	0.0185
Temperature (°C)	20	Thermal conductivity (W/mK)	0.0256