physics::FluidParams Struct Reference

#include <fluid.hpp>

Public Attributes
float	h = 0.025f
	Smoothing length [m].
float	rho0 = 1000.0f
	Rest density [kg/m^3].
int	gamma = 7
	Tait EOS exponent.
float	c0 = 10.0f
	Speed of sound [m/s] -> B = rho_0c_0^2/gamma.
float	mu = 0.01f
	Dynamic viscosity [Pa*s].
float	mass = 0.4f
	Particle mass [kg] (~= rho_0*dx^2, dx=0.8h)
float	gx = 0.0f
	Gravity x [m/s^2].
float	gy = -9.81f
	Gravity y [m/s^2].
float	dt = 0.001f
	Timestep [s] (must satisfy CFL: dt < h/c0)
float	xmin = 0.0f
float	xmax = 1.0f
float	ymin = 0.0f
float	ymax = 0.7f
float	restitution = 0.3f
	Velocity restitution at walls.
float	alpha_T = 0.005f
	Thermal diffusivity [m^2/s].
float	h_conv = 8.0f
	Convective coefficient with rigid bodies [1/s].
num::Backend	policy = num::Backend::seq
	seq = Newton pairs; omp = parallel

Detailed Description

Definition at line 32 of file fluid.hpp.

Member Data Documentation

alpha_T

float physics::FluidParams::alpha_T = 0.005f

Thermal diffusivity [m^2/s].

Definition at line 58 of file fluid.hpp.

Referenced by main(), and physics::FluidSolver::step().

c0

float physics::FluidParams::c0 = 10.0f

Speed of sound [m/s] -> B = rho_0c_0^2/gamma.

Definition at line 39 of file fluid.hpp.

Referenced by physics::backends::omp::compute_density_pressure(), physics::backends::seq::compute_density_pressure(), and main().

dt

float physics::FluidParams::dt = 0.001f

Timestep [s] (must satisfy CFL: dt < h/c0)

Definition at line 48 of file fluid.hpp.

Referenced by physics::backends::omp::integrate(), physics::backends::seq::integrate(), physics::backends::seq::integrate_bodies(), and main().

gamma

int physics::FluidParams::gamma = 7

Tait EOS exponent.

Definition at line 38 of file fluid.hpp.

Referenced by physics::backends::omp::compute_density_pressure(), physics::backends::seq::compute_density_pressure(), and main().

gx

float physics::FluidParams::gx = 0.0f

Gravity x [m/s^2].

Definition at line 44 of file fluid.hpp.

Referenced by physics::backends::omp::compute_forces(), physics::backends::seq::compute_forces(), physics::backends::seq::integrate_bodies(), and main().

gy

float physics::FluidParams::gy = -9.81f

Gravity y [m/s^2].

Definition at line 45 of file fluid.hpp.

Referenced by physics::backends::omp::compute_forces(), physics::backends::seq::compute_forces(), physics::backends::seq::integrate_bodies(), and main().

h

float physics::FluidParams::h = 0.025f

Smoothing length [m].

Definition at line 34 of file fluid.hpp.

Referenced by physics::backends::omp::compute_density_pressure(), physics::backends::seq::compute_density_pressure(), physics::backends::omp::compute_forces(), physics::backends::seq::compute_forces(), main(), and physics::FluidSolver::step().

h_conv

float physics::FluidParams::h_conv = 8.0f

Convective coefficient with rigid bodies [1/s].

Definition at line 59 of file fluid.hpp.

Referenced by main(), and physics::FluidSolver::step().

mass

float physics::FluidParams::mass = 0.4f

Particle mass [kg] (~= rho_0*dx^2, dx=0.8h)

Definition at line 41 of file fluid.hpp.

Referenced by physics::backends::omp::compute_density_pressure(), physics::backends::seq::compute_density_pressure(), physics::backends::omp::compute_forces(), physics::backends::seq::compute_forces(), main(), and physics::FluidSolver::step().

mu

float physics::FluidParams::mu = 0.01f

Dynamic viscosity [Pa*s].

Definition at line 40 of file fluid.hpp.

Referenced by physics::backends::omp::compute_forces(), physics::backends::seq::compute_forces(), and main().

policy

num::Backend physics::FluidParams::policy = num::Backend::seq

seq = Newton pairs; omp = parallel

Definition at line 62 of file fluid.hpp.

Referenced by physics::FluidSolver::step().

restitution

float physics::FluidParams::restitution = 0.3f

Velocity restitution at walls.

Definition at line 55 of file fluid.hpp.

Referenced by physics::backends::omp::body_collisions(), physics::backends::seq::body_collisions(), physics::backends::omp::enforce_boundaries(), physics::backends::seq::enforce_boundaries(), physics::backends::seq::integrate_bodies(), and main().

rho0

float physics::FluidParams::rho0 = 1000.0f

Rest density [kg/m^3].

Definition at line 37 of file fluid.hpp.

Referenced by physics::FluidSolver::add_particle(), physics::backends::omp::compute_density_pressure(), physics::backends::seq::compute_density_pressure(), and main().

xmax

float physics::FluidParams::xmax = 1.0f

Definition at line 52 of file fluid.hpp.

Referenced by physics::backends::omp::enforce_boundaries(), physics::backends::seq::enforce_boundaries(), physics::backends::seq::integrate_bodies(), and main().

xmin

float physics::FluidParams::xmin = 0.0f

Definition at line 51 of file fluid.hpp.

Referenced by physics::backends::omp::enforce_boundaries(), physics::backends::seq::enforce_boundaries(), physics::backends::seq::integrate_bodies(), and main().

ymax

float physics::FluidParams::ymax = 0.7f

Definition at line 54 of file fluid.hpp.

Referenced by physics::backends::omp::enforce_boundaries(), physics::backends::seq::enforce_boundaries(), physics::backends::seq::integrate_bodies(), and main().

ymin

float physics::FluidParams::ymin = 0.0f

Definition at line 53 of file fluid.hpp.

Referenced by physics::backends::omp::enforce_boundaries(), physics::backends::seq::enforce_boundaries(), physics::backends::seq::integrate_bodies(), and main().

---

The documentation for this struct was generated from the following file:

• /home/runner/work/numerics/numerics/apps/fluid_sim/fluid.hpp