diff options
Diffstat (limited to 'Source/Particles/Pusher/UpdateMomentumBoris.H')
-rw-r--r-- | Source/Particles/Pusher/UpdateMomentumBoris.H | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/Source/Particles/Pusher/UpdateMomentumBoris.H b/Source/Particles/Pusher/UpdateMomentumBoris.H index ecb379956..c26a97aa4 100644 --- a/Source/Particles/Pusher/UpdateMomentumBoris.H +++ b/Source/Particles/Pusher/UpdateMomentumBoris.H @@ -17,31 +17,31 @@ void UpdateMomentumBoris( amrex::ParticleReal& ux, amrex::ParticleReal& uy, amrex::ParticleReal& uz, const amrex::ParticleReal Ex, const amrex::ParticleReal Ey, const amrex::ParticleReal Ez, const amrex::ParticleReal Bx, const amrex::ParticleReal By, const amrex::ParticleReal Bz, - const amrex::Real q, const amrex::Real m, const amrex::Real dt ) + const amrex::ParticleReal q, const amrex::ParticleReal m, const amrex::Real dt ) { using namespace amrex::literals; - const amrex::Real econst = 0.5_rt*q*dt/m; + const amrex::ParticleReal econst = 0.5_prt*q*dt/m; // First half-push for E ux += econst*Ex; uy += econst*Ey; uz += econst*Ez; // Compute temporary gamma factor - constexpr amrex::Real inv_c2 = 1._rt/(PhysConst::c*PhysConst::c); - const amrex::Real inv_gamma = 1._rt/std::sqrt(1._rt + (ux*ux + uy*uy + uz*uz)*inv_c2); + constexpr amrex::ParticleReal inv_c2 = 1._prt/(PhysConst::c*PhysConst::c); + const amrex::ParticleReal inv_gamma = 1._prt/std::sqrt(1._prt + (ux*ux + uy*uy + uz*uz)*inv_c2); // Magnetic rotation // - Compute temporary variables - const amrex::Real tx = econst*inv_gamma*Bx; - const amrex::Real ty = econst*inv_gamma*By; - const amrex::Real tz = econst*inv_gamma*Bz; - const amrex::Real tsqi = 2._rt/(1._rt + tx*tx + ty*ty + tz*tz); - const amrex::Real sx = tx*tsqi; - const amrex::Real sy = ty*tsqi; - const amrex::Real sz = tz*tsqi; - const amrex::Real ux_p = ux + uy*tz - uz*ty; - const amrex::Real uy_p = uy + uz*tx - ux*tz; - const amrex::Real uz_p = uz + ux*ty - uy*tx; + const amrex::ParticleReal tx = econst*inv_gamma*Bx; + const amrex::ParticleReal ty = econst*inv_gamma*By; + const amrex::ParticleReal tz = econst*inv_gamma*Bz; + const amrex::ParticleReal tsqi = 2._prt/(1._prt + tx*tx + ty*ty + tz*tz); + const amrex::ParticleReal sx = tx*tsqi; + const amrex::ParticleReal sy = ty*tsqi; + const amrex::ParticleReal sz = tz*tsqi; + const amrex::ParticleReal ux_p = ux + uy*tz - uz*ty; + const amrex::ParticleReal uy_p = uy + uz*tx - ux*tz; + const amrex::ParticleReal uz_p = uz + ux*ty - uy*tx; // - Update momentum ux += uy_p*sz - uz_p*sy; uy += uz_p*sx - ux_p*sz; |