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This commit is contained in:
Alex Selimov 2026-03-29 22:36:21 -04:00
parent 063ec15795
commit 828b87dcc9
1 changed files with 11 additions and 5 deletions
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16
src/properties/transport_fit.rs
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@ -17,22 +17,28 @@ impl SpeciesTransportData {
} }
} }
pub fn viscosity_at(&self, temp: f64) -> f64 { pub fn viscosity_at(&self, temp: f64) -> Option<f64> {
if self.viscosities.is_empty() {
return None;
}
let i_viscosity = self let i_viscosity = self
.viscosities .viscosities
.iter() .iter()
.rposition(|viscosity| temp > viscosity.temp_range.0) .rposition(|viscosity| temp > viscosity.temp_range.0)
.unwrap_or(0); .unwrap_or(0);
self.viscosities[i_viscosity].compute(temp) Some(self.viscosities[i_viscosity].compute(temp))
} }
pub fn conductivity_at(&self, temp: f64) -> f64 { pub fn conductivity_at(&self, temp: f64) -> Option<f64> {
if self.conductivities.is_empty() {
return None;
}
let i_conductivity = self let i_conductivity = self
.conductivities .conductivities
.iter() .iter()
.rposition(|conductivity| temp > conductivity.temp_range.0) .rposition(|conductivity| temp > conductivity.temp_range.0)
.unwrap_or(0); .unwrap_or(0);
self.conductivities[i_conductivity].compute(temp) Some(self.conductivities[i_conductivity].compute(temp))
} }
} }
@ -68,7 +74,7 @@ mod test {
d: 40.0, d: 40.0,
}; };
assert_delta!(fit.compute(1.0), 90.0, 1e-12); assert_delta!(fit.compute(4.0), 60.73794361119891, 1e-12);
} }
#[test] #[test]