Module functions 

Auto-generated module

🤖 Generated with SplitRS

Constants

D2Q9_CX

D2Q9 x-component velocity vectors.

D2Q9_CY

D2Q9 y-component velocity vectors.

D2Q9_OPP

D2Q9 opposite direction indices (for bounce-back).

D2Q9_Q

LBM D2Q9 velocity set index count.

D2Q9_W

D2Q9 equilibrium weights.

D3Q27_Q

LBM D3Q27 velocity set index count.

Functions

advect_scalar

Semi-Lagrangian advection of a scalar field phi on a MAC grid.

compute_vorticity

Compute curl (vorticity) of the velocity field at cell centers.

g2p_transfer

Grid-to-Particle (G2P) transfer: update particle velocities from MAC grid.

gpu_advect_2d

GPU semi-Lagrangian scalar field advection on a 2D regular grid.

gpu_apply_boundary_box

GPU boundary condition: clamp particles inside an AABB and reflect velocities.

gpu_jacobi_pressure_solve

GPU Jacobi pressure solver on a MAC grid.

gpu_lbm_bgk_collide

GPU-style BGK collision step for the D2Q9 LBM grid.

gpu_particle_integrate_euler

GPU Euler integration: v += adt, x += vdt.

gpu_particle_integrate_verlet

GPU Verlet integration using the previous time-step dt_prev.

gpu_pressure_poisson_jacobi_2d

GPU Jacobi solver for the 2D pressure-Poisson equation on a staggered grid.

gpu_reduce_kinetic_energy

GPU parallel reduction for total kinetic energy.

gpu_reduce_momentum

GPU parallel reduction for total linear momentum.

gpu_sph_density_parallel

GPU-accelerated SPH density summation.

morton_encode_3d

Encode 3D integer coordinates into a 30-bit Morton (Z-order curve) code.

morton_expand_bits

Expand a 10-bit integer into a 30-bit Morton code component (bit interleave).

morton_sort_particles

Sort SPH particles by their Morton code for cache-friendly GPU access.

p2g_transfer

Particle-to-Grid (P2G) transfer: splat particle velocities onto MAC grid.

sph_compute_density

Compute SPH density for all particles (mock GPU kernel dispatch).

sph_compute_forces

Compute SPH forces: pressure gradient + viscosity + gravity + surface tension.

sph_compute_pressure

Compute SPH pressure from density (Tait equation).

sph_integrate

Integrate SPH particles using semi-implicit Euler.

sph_step

Full SPH step: density → pressure → forces → integrate.

surface_tension_csf

Surface tension force via Continuum Surface Force (CSF) method.

vorticity_confinement

Apply vorticity confinement forces to MAC grid velocities.