uom/si/
diffusion_coefficient.rs

1//! Diffusion coefficient (base unit square meter per second, m² · s⁻¹).
2
3quantity! {
4    /// Diffusion coefficient (base unit square meter per second, m² · s⁻¹).
5    quantity: DiffusionCoefficient; "diffusion coefficient";
6    /// Dimension of diffusion coefficient, L²T⁻¹ (base unit square meter per second, m² · s⁻¹).
7    dimension: ISQ<
8        P2,     // length
9        Z0,     // mass
10        N1,     // time
11        Z0,     // electric current
12        Z0,     // thermodynamic temperature
13        Z0,     // amount of substance
14        Z0>;    // luminous intensity
15    units {
16        @square_meter_per_second: prefix!(none); "m²/s", "square meter per second",
17            "square meters per second";
18        @square_centimeter_per_second: prefix!(centi) * prefix!(centi); "cm²/s",
19            "square centimeter per second", "square centimeters per second";
20        @square_millimeter_per_second: prefix!(milli) * prefix!(milli); "mm²/s",
21            "square millimeter per second", "square millimeters per second";
22        @square_micrometer_per_second: prefix!(micro) * prefix!(micro); "µm²/s",
23            "square micrometer per second", "square micrometers per second";
24        @square_nanometer_per_second: prefix!(nano) * prefix!(nano); "nm²/s",
25            "square nanometer per second", "square nanometers per second";
26        @stokes: prefix!(centi) * prefix!(centi); "St", "Stokes", "Stokes";
27        @centistokes: prefix!(centi) * prefix!(centi) * prefix!(centi); "cSt", "centistokes",
28            "centistokes";
29        }
30}
31
32#[cfg(test)]
33mod test {
34    storage_types! {
35        use crate::num::One;
36        use crate::si::quantities::*;
37        use crate::si::time as t;
38        use crate::si::area as area;
39        use crate::si::diffusion_coefficient as dc;
40
41        use crate::tests::Test;
42
43        #[test]
44        fn check_dimension() {
45            let _: DiffusionCoefficient<V> = Area::new::<area::square_meter>(V::one())
46                / Time::new::<t::second>(V::one());
47        }
48
49        #[test]
50        fn check_units() {
51            test::<area::square_meter, t::second, dc::square_meter_per_second>();
52            test::<area::square_centimeter, t::second, dc::square_centimeter_per_second>();
53            test::<area::square_millimeter, t::second, dc::square_millimeter_per_second>();
54            test::<area::square_micrometer, t::second, dc::square_micrometer_per_second>();
55            test::<area::square_nanometer, t::second, dc::square_nanometer_per_second>();
56            test::<area::square_centimeter, t::second, dc::stokes>();
57            test::<area::square_millimeter, t::second, dc::centistokes>();
58
59            fn test<A: area::Conversion<V>, T: t::Conversion<V>, DC: dc::Conversion<V>>() {
60                Test::assert_approx_eq(&DiffusionCoefficient::new::<DC>(V::one()),
61                    &(Area::new::<A>(V::one())
62                        / Time::new::<T>(V::one())));
63            }
64        }
65    }
66}
uom/si/diffusion_coefficient.rs

uom/si/
diffusion_coefficient.rs
