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added correction of growth rates

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This commit is contained in:
Oliver Hahn 2019-11-06 14:06:19 +01:00
parent 88ac5ab19a
commit d075e496be
2 changed files with 14 additions and 0 deletions
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11
include/particle_plt.hh
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@ -169,11 +169,16 @@ private:
D_xx_.kelem(i,j,k) *= norm;
D_yy_.kelem(i,j,k) *= norm;
D_zz_.kelem(i,j,k) *= norm;
// spatially dependent correction to vfact = \dot{D_+}/D_+
D_xy_.kelem(i,j,k) = 1.0/(0.25*(std::sqrt(1.+24*eval[2])-1.));
}
}
}
}
D_xy_.kelem(0,0,0) = 1.0;
}
public:
@ -207,6 +212,12 @@ public:
return D_zz_.get_cic_kspace({ix,iy,iz});
}
inline ccomplex_t vfac_corr( std::array<size_t,3> ijk ) const
{
real_t ix = ijk[0]*mapratio_, iy = ijk[1]*mapratio_, iz = ijk[2]*mapratio_;
return D_xy_.get_cic_kspace({ix,iy,iz});
}
};
#if 0

3
src/ic_generator.cc
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@ -549,6 +549,9 @@ int Run( ConfigFile& the_config )
tmp.kelem(idx) = vunit / boxlen * ( lg.gradient(idim,{i,j,k}) * phitot_v
+ vfac3 * (lg.gradient(idimp,{i,j,k}) * A3[idimpp]->kelem(idx) - lg.gradient(idimpp,{i,j,k}) * A3[idimp]->kelem(idx)) );
// correct velocity with PLT mode growth rate
tmp.kelem(idx) *= lg.vfac_corr({i,j,k});
if( bAddExternalTides ){
// modify velocities with anisotropic expansion factor**2
tmp.kelem(idx) *= std::pow(lss_aniso_alpha[idim],2.0);