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chore: sync project state and current artifacts

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Sepehr
2026-02-22 23:27:31 +01:00
parent 1b6415776e
commit dd77089b22
232 changed files with 37056 additions and 4296 deletions
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20
crates/solver/src/jacobian.rs
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@@ -218,7 +218,7 @@ impl JacobianMatrix {
compute_residuals: F,
state: &[f64],
residuals: &[f64],
epsilon: f64,
relative_epsilon: f64,
) -> Result<Self, String>
where
F: Fn(&[f64], &mut [f64]) -> Result<(), String>,
@@ -228,17 +228,21 @@ impl JacobianMatrix {
let mut matrix = DMatrix::zeros(m, n);
for j in 0..n {
// Perturb state[j]
let mut state_perturbed = state.to_vec();
state_perturbed[j] += epsilon;
// Use relative epsilon scaled to the state variable magnitude.
// For variables like P~350,000 Pa or h~400,000 J/kg, an absolute
// epsilon of 1e-8 is below library numerical precision and gives zero
// finite differences. A relative epsilon of ~1e-5 gives physically
// meaningful perturbations across all thermodynamic property scales.
let eps_j = state[j].abs().max(1.0) * relative_epsilon;
let mut state_perturbed = state.to_vec();
state_perturbed[j] += eps_j;
// Compute perturbed residuals
let mut residuals_perturbed = vec![0.0; m];
compute_residuals(&state_perturbed, &mut residuals_perturbed)?;
// Compute finite difference
for i in 0..m {
matrix[(i, j)] = (residuals_perturbed[i] - residuals[i]) / epsilon;
matrix[(i, j)] = (residuals_perturbed[i] - residuals[i]) / eps_j;
}
}
@@ -324,7 +328,7 @@ impl JacobianMatrix {
// col p_idx = 2*i, col h_idx = 2*i+1.
// The equation rows mirror the same layout, so row = col for square systems.
let indices: Vec<usize> = system
.circuit_edges(crate::system::CircuitId(circuit_id))
.circuit_edges(crate::CircuitId(circuit_id.into()))
.flat_map(|edge| {
let (p_idx, h_idx) = system.edge_state_indices(edge);
[p_idx, h_idx]