Struct ZeldovichSingleMode

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pub struct ZeldovichSingleMode {
    pub mean_density: f64,
    pub amplitude: f64,
    pub wavenumber: f64,
    pub sigma_v: f64,
}

Expand description

Single-mode Zel’dovich pancake IC for validation tests.

Uses a sinusoidal perturbation v_0(x) = -A sin(k x_1) along the first spatial axis only. The analytic caustic time t_c = 1/(Ak) makes this ideal for convergence studies against exact solutions.

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§mean_density: f64

Mean comoving matter density rho_bar.

§amplitude: f64

Perturbation amplitude A controlling the velocity field strength.

§wavenumber: f64

Perturbation wavenumber k (radians per unit length).

§sigma_v: f64

Velocity-space Gaussian width sigma_v for the cold-stream representation.

Implementations§

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impl ZeldovichSingleMode

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pub fn sample_on_grid( &self, domain: &Domain, progress: Option<&StepProgress>, ) -> PhaseSpaceSnapshot

Sample the single-mode Zel’dovich distribution onto a 6D grid.

f(x,v) = rho_bar / ((2pi)^{3/2} sigma_v^3) exp(-(v - v_0(x))^2 / (2 sigma_v^2)) where v_0(x) = (-A sin(k x_1), 0, 0).

An optional progress handle reports intra-step progress to the TUI.

Auto Trait Implementations§

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impl UnwindSafe for ZeldovichSingleMode

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