48 lines
1.1 KiB
Rust
48 lines
1.1 KiB
Rust
#![cfg(feature = "expensive_tests")]
|
|
use ndarray::prelude::*;
|
|
use sbp::euler::*;
|
|
use sbp::Float;
|
|
|
|
#[test]
|
|
#[ignore]
|
|
fn single_period_upwind4() {
|
|
let nx = 100;
|
|
let ny = 100;
|
|
|
|
let x = Array1::linspace(-5.0, 5.0, nx);
|
|
let y = Array1::linspace(-5.0, 5.0, ny);
|
|
|
|
let x = x.broadcast((ny, nx)).unwrap().to_owned();
|
|
let y = y
|
|
.reversed_axes()
|
|
.broadcast((nx, ny))
|
|
.unwrap()
|
|
.reversed_axes()
|
|
.to_owned();
|
|
|
|
let vortex_params = VortexParameters {
|
|
x0: -1.0,
|
|
y0: 0.0,
|
|
mach: 0.5,
|
|
rstar: 0.5,
|
|
eps: 1.0,
|
|
};
|
|
|
|
let mut sys = System::<sbp::operators::Upwind4>::new(x, y);
|
|
sys.vortex(0.0, vortex_params);
|
|
|
|
let time = 10.0;
|
|
let dt = 0.2 * Float::min(1.0 / (nx - 1) as Float, 1.0 / (ny - 1) as Float);
|
|
|
|
let nsteps = (time / dt) as usize;
|
|
for _ in 0..nsteps {
|
|
sys.advance_upwind(dt);
|
|
}
|
|
|
|
let mut verifield = Field::new(ny, nx);
|
|
verifield.vortex(sys.x(), sys.y(), nsteps as Float * dt - 10.0, vortex_params);
|
|
|
|
let err = verifield.h2_err::<sbp::operators::Upwind4>(sys.field());
|
|
panic!("{}", err);
|
|
}
|