diff options
Diffstat (limited to 'Docs/source/running_cpp')
| -rw-r--r-- | Docs/source/running_cpp/parameters.rst | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Docs/source/running_cpp/parameters.rst b/Docs/source/running_cpp/parameters.rst index 0e28723af..17b6a1c5d 100644 --- a/Docs/source/running_cpp/parameters.rst +++ b/Docs/source/running_cpp/parameters.rst @@ -285,8 +285,9 @@ Particle initialization * ``species_name.predefined_profile_name`` (`string`) Only read of ``<species_name>.electrons.profile`` is `predefined`. - * If ``parabolic_channel``, the plasma profile is a parabolic profile with linear ramps - at the beginning and the end of the profile. The density is given by + * If ``parabolic_channel``, the plasma profile is a parabolic profile with + cosine-like ramps at the beginning and the end of the profile. + The density is given by .. math:: @@ -299,9 +300,9 @@ Particle initialization n(x,y) = 1 + 4\frac{x^2+y^2}{k_p^2 R_c^4} where :math:`k_p` is the plasma wavenumber associated with density :math:`n_0`. - Here, :math:`n(z)` is a linear up-ramp from :math:`0` to :math:`L_{ramp,up}`, + Here, :math:`n(z)` is a cosine-like up-ramp from :math:`0` to :math:`L_{ramp,up}`, constant to :math:`1` from :math:`L_{ramp,up}` to :math:`L_{ramp,up} + L_{plateau}` - and a linear down-ramp from :math:`L_{ramp,up} + L_{plateau}` to + and a cosine-like down-ramp from :math:`L_{ramp,up} + L_{plateau}` to :math:`L_{ramp,up} + L_{plateau}+L_{ramp,down}`. All parameters are given in ``predefined_profile_params``. |