Model

A₀

A₁

A₂

A₃

A₄

A₅

R²

Circular

0.6416

2.2646

−15.683

38.676

−41.490

16.310

0.9239

Circular with nappe breakers

0.6687

1.4221

−10.630

−27.15

−27.158

10.482

0.9454