Aerostatic thrust bearing, simple orifice restrictor with slot-flow check — fixed reference geometry (B)
Reference-geometry calculator (Ø40mm outer diameter, 5µm film, β=0.6 — fixed) for an aerostatic thrust bearing with a simple orifice restrictor, including a supply-slot vs. choked-flow area check (A3/A3c).
The legacy "please login" demo lock froze D0/H0/B1. The formula also hardcodes the outer radius directly in the mass-flow/load terms, so this is kept as a fixed-geometry reference calculator rather than generalized. Only the inputs that were already free under the lock are exposed.
Methode & referenties
- Aerostatic thrust bearing, simple orifice restrictor with a supply-slot choked-flow sanity check.
- FIXED GEOMETRY: outer diameter 40 mm, film 5 µm, β=0.6 — same rationale as c12_4a.
- Generalizing the outer radius is a real model change and is not done here — see docs/locked-calculators-review.md.
De berekening is een letterlijke overzetting van de originele client-side JavaScript van /calculators/c12_4b.htm. Resultaten zijn geverifieerd gelijk aan het origineel via een geautomatiseerde golden-master-test. Geen enkele formule is opnieuw afgeleid of “verbeterd”.