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Contents

AMP_PHI_0

Definition

Amplitude control parameter for n=0\,\! distribution function at t=0\,\!.

Comments

Let \sigma\,\! be the species index. For legacy reasons, we define

a_\sigma = \,\!AMP_PHI_0 \, \frac{16}{n_n} \, \frac{\rho_*}{0.00357} \frac{n_\sigma}{n_e}

There are two schemes depending on the sign of a_\sigma\,\!:

h_\sigma^{n=0} = \begin{cases} a_\sigma \sin(2\pi x) & \mbox{if}~ a_\sigma > 0 , \\ \left| a_\sigma \right| \sin^9(2\pi x) & \mbox{if}~ a_\sigma < 0 ,\\ \end{cases}

where x\,\! is defined as

x = (r-r_a)/(r_b-r_a) . \,\!

Internal name

amp_0

Default

0.0

Retrieved from "http://fusion.gat.com/theory/AMP_PHI_0"