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Copy pathresidual_function.rs
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196 lines (188 loc) · 5.16 KB
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use num_dual::DualNum;
use serde::Deserialize;
use serde_json::Value;
use std::collections::HashMap;
#[derive(Clone, Deserialize)]
pub struct ResidualFunctionJson {
#[serde(rename = "type")]
ty: String,
#[serde(flatten)]
parameters: HashMap<String, Vec<Value>>,
}
pub struct ResidualFunctionIterator {
inner: ResidualFunctionJson,
count: usize,
index: usize,
}
impl Iterator for ResidualFunctionIterator {
type Item = ResidualFunction;
fn next(&mut self) -> Option<Self::Item> {
if self.index == self.count {
return None;
}
let mut parameters: HashMap<_, _> = self
.inner
.parameters
.iter()
.map(|(k, v)| (k.clone(), v[self.index].clone()))
.collect();
self.index += 1;
parameters.insert("type".into(), serde_json::to_value(&self.inner.ty).unwrap());
Some(serde_json::from_value(serde_json::to_value(parameters).unwrap()).unwrap())
}
}
impl IntoIterator for ResidualFunctionJson {
type Item = ResidualFunction;
type IntoIter = ResidualFunctionIterator;
fn into_iter(self) -> Self::IntoIter {
let count = self.parameters.values().next().unwrap().len();
ResidualFunctionIterator {
count,
inner: self,
index: 0,
}
}
}
#[derive(Clone, Copy, Deserialize)]
#[serde(tag = "type")]
pub enum ResidualFunction {
ResidualHelmholtzPower {
d: i32,
l: i32,
n: f64,
t: f64,
},
ResidualHelmholtzGaussian {
d: i32,
n: f64,
t: f64,
beta: f64,
epsilon: f64,
eta: f64,
gamma: f64,
},
ResidualHelmholtzNonAnalytic {
#[serde(rename = "A")]
aa: f64,
#[serde(rename = "B")]
bb: f64,
#[serde(rename = "C")]
cc: f64,
#[serde(rename = "D")]
dd: f64,
a: f64,
b: f64,
beta: f64,
n: f64,
},
ResidualHelmholtzExponential {
d: i32,
g: f64,
l: i32,
n: f64,
t: i32,
},
ResidualHelmholtzDoubleExponential {
d: i32,
gd: f64,
gt: f64,
ld: i32,
lt: i32,
n: f64,
t: i32,
},
ResidualHelmholtzGaoB {
b: f64,
beta: f64,
d: i32,
epsilon: f64,
eta: f64,
gamma: f64,
n: f64,
t: f64,
},
ResidualHelmholtzLemmon2005 {
d: i32,
l: i32,
m: f64,
n: f64,
t: f64,
},
}
impl ResidualFunction {
pub fn evaluate<D: DualNum<f64> + Copy>(&self, delta: D, tau: D) -> D {
match *self {
ResidualFunction::ResidualHelmholtzPower { d, l, n, t } => {
let mut pre = delta.powi(d) * tau.powf(t) * n;
if l != 0 {
pre *= (-delta.powi(l)).exp()
};
pre
}
ResidualFunction::ResidualHelmholtzGaussian {
d,
n,
t,
beta,
epsilon,
eta,
gamma,
} => {
(delta.powi(d) * tau.powf(t) * n)
* (-(delta - epsilon).powi(2) * eta - (tau - gamma).powi(2) * beta).exp()
}
ResidualFunction::ResidualHelmholtzNonAnalytic {
aa,
bb,
cc,
dd,
a,
b,
beta,
n,
} => {
let delta_m1 = (delta - 1.0).powi(2);
let psi = (-delta_m1 * cc - (tau - 1.0).powi(2) * dd).exp();
let theta = -tau + 1.0 + delta_m1.powf(0.5 / beta) * aa;
let ddelta = theta * theta + delta_m1.powf(a) * bb;
ddelta.powf(b) * delta * psi * n
}
ResidualFunction::ResidualHelmholtzExponential { d, g, l, n, t } => {
delta.powi(d) * tau.powi(t) * n * (-delta.powi(l) * g).exp()
}
ResidualFunction::ResidualHelmholtzDoubleExponential {
d,
gd,
gt,
ld,
lt,
n,
t,
} => delta.powi(d) * tau.powi(t) * n * (-delta.powi(ld) * gd - tau.powi(lt) * gt).exp(),
ResidualFunction::ResidualHelmholtzGaoB {
b,
beta,
d,
epsilon,
eta,
gamma,
n,
t,
} => {
let f_delta = delta.powi(d) * ((delta - epsilon).powi(2) * eta).exp();
let f_tau = tau.powf(t) * ((tau - gamma).powi(2) * beta + b).recip().exp();
f_tau * f_delta * n
}
ResidualFunction::ResidualHelmholtzLemmon2005 { d, l, m, n, t } => {
let mut pre = delta.powi(d) * tau.powf(t) * n;
if l != 0 {
pre *= (-delta.powi(l)).exp()
}
if m > 0.0 {
pre *= (-tau.powf(m)).exp()
}
pre
}
}
}
}