VTK Outputs

Many film outputs in Multics are best visualized as distributions over space. We print these distributions in VTK files, which can be opened and plotted using ParaView. These VTK files contain many possible outputs to be plotted, although many are intended for advanced debugging and not everyday use. The outputs most relevant for analyzing typical hydraulic machine simulations are listed below. For questions about the meaning of other outputs, please contact Maha lab.

Fluid Properties	Description
rho	fluid density of each film element
pFilm	pressure of each film element (locations where pressure is set by boundary conditions are NaN)
pAll	pressure of each film element (including boundary condition pressure)
TFilm	temperature of each film element
fG	gas fraction of each film element
fV	vapor fraction of each film element

Gap Height	Description
hGap	saturated gap height due to deformation, wear, and rigid body motion
hRigid	gap height due to the wear profile and rigid body motion

Deformation	Description
hDef	total deformation of each film element
hDefMacro	total influence matrix deformation of each film element
hDefMacroTop	influence matrix deformation on the top body
hDefMacroBot	influence matrix deformation on the bottom body
hDefMicro	analytical micro deformation of each film element

Mixed Lubrication	Description
hBar	equivalent gap height due to roughness
pContact	pressure due to contact between solid bodies
hDefMicro	analytical micro deformation of each film element