units of measurement

1 files changed, 32 insertions, 0 deletions

diff --git a/src/flow_rate.rs b/src/flow_rate.rs
new file mode 100644
index 0000000..f8e15e0
--- /dev/null
+++ b/src/flow_rate.rs
@@ -0,0 +1,32 @@
+use crate::{mass::Mass, volume::Volume};
+use std::time::Duration;
+
+pub struct MassFlowRate {
+    pub mass: Mass,
+    pub duration: Duration,
+}
+
+impl MassFlowRate {
+    pub fn as_kilograms_per_minute(&self) -> f64 {
+        self.mass.as_kilograms() / (self.duration.as_secs() as f64 / 60.)
+    }
+
+    pub fn as_pounds_per_minute(&self) -> f64 {
+        self.mass.as_pounds() / (self.duration.as_secs() as f64 / 60.)
+    }
+}
+
+pub struct VolumetricFlowRate {
+    pub volume: Volume,
+    pub duration: Duration,
+}
+
+impl VolumetricFlowRate {
+    pub fn as_cubic_metres_per_second(&self) -> f64 {
+        self.volume.as_cubic_metres() / self.duration.as_secs() as f64
+    }
+
+    pub fn as_cubic_feet_per_minute(&self) -> f64 {
+        self.volume.as_cubic_feet() / (self.duration.as_secs() as f64 / 60.)
+    }
+}