From 752ac78e5ae7597f8f42f2339f6c8235e84176a5 Mon Sep 17 00:00:00 2001
From: Even Solbraa <41290109+EvenSol@users.noreply.github.com>
Date: Fri, 7 Jul 2023 11:12:22 +0000
Subject: [PATCH] added composition init

---
 src/main/java/neqsim/thermo/system/SystemThermo.java |  6 +++++-
 .../twoPhaseStirredCellNode/StirredCellNodeTest.java | 12 ++++++------
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/main/java/neqsim/thermo/system/SystemThermo.java b/src/main/java/neqsim/thermo/system/SystemThermo.java
index 37de15986..0496b2a07 100644
--- a/src/main/java/neqsim/thermo/system/SystemThermo.java
+++ b/src/main/java/neqsim/thermo/system/SystemThermo.java
@@ -1788,6 +1788,9 @@ public void reset() {
   /** {@inheritDoc} */
   @Override
   public void init(int type) {
+    if (!isInitialized) {
+      calc_x_y();
+    }
     if (this.numericDerivatives) {
       initNumeric(type);
     } else {
@@ -1814,6 +1817,7 @@ public void init(int type, int phase) {
    *        calculate all derivatives and 4 to calculate all derivatives numerically
    */
   public void initAnalytic(int type) {
+
     if (type == 0) {
       reInitPhaseInformation();
 
@@ -3387,7 +3391,7 @@ public void normalizeBeta() {
   /** {@inheritDoc} */
   @Override
   public String[][] createTable(String name) {
-    
+
     if (!isInitialized) {
       init_x_y();
     }
diff --git a/src/test/java/neqsim/fluidMechanics/flowNode/twoPhaseNode/twoPhaseStirredCellNode/StirredCellNodeTest.java b/src/test/java/neqsim/fluidMechanics/flowNode/twoPhaseNode/twoPhaseStirredCellNode/StirredCellNodeTest.java
index 442eb0c56..1a94925f1 100644
--- a/src/test/java/neqsim/fluidMechanics/flowNode/twoPhaseNode/twoPhaseStirredCellNode/StirredCellNodeTest.java
+++ b/src/test/java/neqsim/fluidMechanics/flowNode/twoPhaseNode/twoPhaseStirredCellNode/StirredCellNodeTest.java
@@ -12,14 +12,14 @@ void testUpdate() {
     SystemInterface testSystem = new SystemSrkEos(313.3, 10.01325);
     ThermodynamicOperations testOps = new ThermodynamicOperations(testSystem);
     StirredCell pipe1 = new StirredCell(2.0, 0.05);
-    //testSystem.addComponent("CO2", 1, "kg/hr", 0);
+    // testSystem.addComponent("CO2", 1, "kg/hr", 0);
     testSystem.addComponent("methane", 10, "kg/hr", 0);
-    //testSystem.addComponent("ethane", 1, "kg/hr", 0);
-    //testSystem.addComponent("n-hexane", 1.206862204876, "kg/min", 0);
+    // testSystem.addComponent("ethane", 1, "kg/hr", 0);
+    // testSystem.addComponent("n-hexane", 1.206862204876, "kg/min", 0);
     testSystem.addComponent("nC10", 3, "kg/hr", 1);
     testSystem.setMixingRule(2);
-
-    //testSystem.prettyPrint();
+    testSystem.initProperties();
+    
     StirredCellNode test = new StirredCellNode(testSystem, pipe1);
     test.setInterphaseModelType(1);
     test.getFluidBoundary().useFiniteFluxCorrection(true);
@@ -35,6 +35,6 @@ void testUpdate() {
       test.update();
       // test.getBulkSystem().prettyPrint();
     }
-    //test.getBulkSystem().prettyPrint();
+    // test.getBulkSystem().prettyPrint();
   }
 }