From f2adfb8667527d6f9fa6246b58a0d1d8bd15f841 Mon Sep 17 00:00:00 2001
From: hzhang <zhangh40@msu.edu>
Date: Wed, 3 Jul 2024 12:20:08 +0800
Subject: [PATCH] Upgrade structure of code base

---
 .../Mixtures/Implements/HomogeneousMixture.cs    | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/Chemistry/Mixtures/Implements/HomogeneousMixture.cs b/src/Chemistry/Mixtures/Implements/HomogeneousMixture.cs
index 1d7b8d2..278293e 100644
--- a/src/Chemistry/Mixtures/Implements/HomogeneousMixture.cs
+++ b/src/Chemistry/Mixtures/Implements/HomogeneousMixture.cs
@@ -235,6 +235,22 @@ public class HomogeneousMixture
         get => Energy / Amount;
         set => Energy = value * Amount;
     }
+
+    /// <summary>
+    /// combust rate
+    /// </summary>
+    public double CombustRate
+    {
+        get
+        {
+            H3 w = StateMatrix.Get!.ConjugateOn(new DiagR3(0, Math.PI, 2 * Math.PI));
+            return w.Rayleigh(
+                LogStateMatrix.Get!.ColumnAverageBivariant +
+                StateMatrix.Get.Hermitian().ColumnAverageBivariant
+            );
+        }
+    }
+
     /// <summary>
     /// total Energy the mixture holds 
     /// </summary>