Lubrication Fluid Source#

Lubrication Fluid Source = {model_name} <floatlist>

Description / Usage#

This card sets a fluid mass source term in the lub_p equation. Can be used to specify inflow mass fluxes over the entire portion of the lubrication gap in which the lub_p equation is active (over the shell material). This flux might be the result of an injection of fluid, or even melting. Currently two models {model_name} are permissible:

CONSTANT

This model is used to set a constant fluid source in units of velocity. Only one floating point value is required.

  • <float1> is the velocity of the fluid source.

MELT

This model is used to set fluid source in units of Velocity which results from an analytical model of lubricated melt bearing flow due to Stiffler (1959). Three floating point values are required.

  • <float1> is load on the slider in units of pressure

  • <float2> is the Stiffler delta factor. Unitless but depends on the aspect ratio.

  • <float3> is the length of the slider in the direction of the motion.

Examples#

Following is a sample card:

Lubrication Fluid Source = CONSTANT 180.