Parallel Diffusion Warburg (Pdw)
Pdw models two parallel solid-state diffusion paths with a branch fraction — the element used in velo-spectroz literature reproduction.
Parameters
| Short | Title |
|---|---|
| D1 | D1 — diffusion coefficient (cm²/s) |
| D2 | D2 — diffusion coefficient (cm²/s) |
| θ | θ — branch fraction |
| Λ | Λ — molar concentration (mol/cm³) |
DSL
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Pdw0{1e-8,1e-9,0.5,1e-3}Literature-style circuit
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R0-p(Q1,R2-Pdw3)Series solution resistance, then a parallel branch: CPE in parallel with (resistor in series with PDW).
ts
editor.setValue('R0-p(Q1,R2-Pdw3{1e-8,1e-9,0.5,1e-3})')The SVG symbol uses forked parallel diagonals (outline, diffusion strokes at 1.15×).