Interior (cabin) comfort metrics for the baseline case (2 km, 100 m2, 350 km/h, single train) versus sealing time constant τ, at Δx = 1 m, against the UIC comfort limits (0.5/0.8/1.0 kPa in 1/3/10 s)
| τ (s) | Δp 1 s (kPa) | Δp 3 s (kPa) | Δp 10 s (kPa) | UIC comfort | Grid-convergent? |
|---|---|---|---|---|---|
| 0 (unsealed) | 3.15 | 3.15 | 3.64 | fail | no (6–16%) |
| 3 | 0.53 | 1.04 | 1.99 | fail | yes (<0.4%) |
| 6 | 0.33 | 0.62 | 1.52 | fail (10 s) | yes (<0.4%) |
| 12.0 (τmin) | 0.20 | 0.42 | 1.00 | pass (10 s binding) | yes (<0.4%) |
| 18 | 0.14 | 0.32 | 0.74 | pass | yes (<0.4%) |
| τ (s) | Δ | Δ | Δ | UIC comfort | Grid-convergent? |
|---|---|---|---|---|---|
| 0 (unsealed) | 3.15 | 3.15 | 3.64 | fail | no (6–16%) |
| 3 | 0.53 | 1.04 | 1.99 | fail | yes (<0.4%) |
| 6 | 0.33 | 0.62 | 1.52 | fail (10 s) | yes (<0.4%) |
| 12.0 (τmin) | 0.20 | 0.42 | 1.00 | pass (10 s binding) | yes (<0.4%) |
| 18 | 0.14 | 0.32 | 0.74 | pass | yes (<0.4%) |
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