Aerostatic radial bearing — partially porous surface
Load, stiffness, restrictor gap and gas flow for a radial (journal) aerostatic bearing fed through a partially porous sleeve surface.
Dimensionless load, F*0.247
Load capacity, F308.75 N
Stiffness, S61.75 N/µm
Restrictor gap, s3.562500000000002 mm
Mass flow, ṁ4.324009237993981 1e-5 kg/s
Volume flow, Q2.181661564992911 l/min
No login lock. The design pressure ratio β=0.5 and eccentricity ratio ε=0.5 are hardcoded directly in the original formula (not exposed as inputs there), and are kept as fixed internal constants here, matching the source exactly.
Method & references
- Radial aerostatic (journal) bearing, partially porous feed surface — empirical dimensionless load correlation (piecewise-quadratic in L/D) plus porous-restrictor flow continuity.
- Ambient pressure is fixed at 1 bar in the original; the pₛ input is the supply/ambient pressure ratio, not an absolute pressure.
The computation is a literal port of the original client-side JavaScript from /calculators/e14_6.htm. Results are verified equal to the original by an automated golden-master test. No formula has been re-derived or “improved”.