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Improve comment in LBO app so it's more accurate. #1099

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4 changes: 2 additions & 2 deletions gyrokinetic/apps/gk_species_lbo.c
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Original file line number Diff line number Diff line change
Expand Up @@ -280,8 +280,8 @@ gk_species_lbo_init(struct gkyl_gyrokinetic_app *app, struct gk_species *gks, st
lbo->spitzer_calc = gkyl_spitzer_coll_freq_new(&app->basis, app->poly_order+1,
1.0, 1.0, 1.0, app->use_gpu);

// We define nu_ss = nu_sr(r=s) = alpha_E/((delta_ss * (1+beta))*n_s), with delta_ss = 2,
// beta = 0. This gives a nu_ss that is arguably 2X smaller than it should be, but it's
// We define nu_ss = nu_sr(r=s) = alpha_E/((1+beta)*n_s), with beta = 0.
// This gives a nu_ss that is arguably 2X smaller than it should be, but it's
// cheaper and yields an electron isotropization rate that agrees better with the FPO's.
lbo->norm_nu_fac_self = nu_frac * gkyl_calc_Morse_alpha_E_const(
gks->info.collisions.den_ref, gks->info.collisions.den_ref,
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