Here are more gyrofluid linear growth rates for D3D shot 81499 at 4.000 secs and rho=0.5. These results compare using circular concentric flux surfaces to general geometry. Both use T_i=T_e and n_i=n_e.
I think the normalization of k_theta rho_i has changed in the general geometry case (different B), so I doubt that the shift in k_theta rho_i shown in this figure is real. I have to check this.
The main point is that the peak growth rate in general geometry increases by about 20% over the circular concentric case for these parameters.
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