pub fn srp_preserved_drag_fraction_kernel<R>(c_t: R) -> Result<R, PhysicsError>where
R: RealField + FromPrimitive,Expand description
Preserved-drag fraction of the central-nozzle SRP configuration — the
digitized Jarvinen–Adams curve C_A_F/C_A0 vs C_T at M∞ = 2.0
(JARVINEN_ADAMS_PRESERVED_DRAG_M2). The low-C_T structure is the
report’s measured drag collapse: the fraction falls from 1.0 to 0.22 by
C_T ≈ 0.46 and drops sharply across the jet-penetration → blunt-flow
transition near C_T ≈ 1; slightly negative values past C_T ≈ 2 are the
measured wake-type forebody force. Domain: C_T ∈ [0.0, 8.8]; inputs
outside it are rejected, never extrapolated. Corroboration: the
Korzun–Cruz–Braun survey’s “minimum value of approximately 10% of the
no-jet value” brackets this curve’s 0.12 → 0.02 transition values.
§References
- Jarvinen & Adams (1970), Fig. 32 (p. 54) and Fig. 56 (p. 81),
digitized ±0.02 (
papers/jarvinen_adams_1970_ntrs_19720005324.pdf).