Struphy perturbation

ModesSinCos

Product of a sine mode in x and a cosine mode in y, modulated by an optional localizing profile in z.

Governing formula

u (x, y, z) = s \sum A_{s} χ_{s} (z) sin (l_{s} \frac{2 π}{L _{x}} x + θ_{x, s}) cos (m_{s} \frac{2 π}{L _{y}} y + θ_{y, s})

where $χ_{s} (z)$ can be either 1 or localized in z.

The sampled perturbation value across the three logical coordinate planes.

Perturbation value ueta1–eta2 · -9.98e-5 to 9.98e-5

Perturbation value ueta1–eta3 · -9.98e-5 to 9.98e-5

Perturbation value ueta2–eta3 · -2.45e-20 to 2.45e-20

eta1 · other coordinates fixed at 0.5

eta2 · other coordinates fixed at 0.5

eta3 · other coordinates fixed at 0.5