Merge branch 'jmt/units-fix' into maint

[flightgear.git] / src / FDM / JSBSim / models / propulsion / FGTurbine.cpp

diff --git a/src/FDM/JSBSim/models/propulsion/FGTurbine.cpp b/src/FDM/JSBSim/models/propulsion/FGTurbine.cpp
index 6c4a7818c4a14a39d599e26f53315546479d8e60..b690d72f0cbf5e5b54cec99af18d763f1f1e3ceb 100644 (file)
--- a/src/FDM/JSBSim/models/propulsion/FGTurbine.cpp
+++ b/src/FDM/JSBSim/models/propulsion/FGTurbine.cpp
@@ -39,10 +39,14 @@ HISTORY
 INCLUDES
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
-#include <vector>
+#include <iostream>
 #include <sstream>
-
 #include "FGTurbine.h"
+#include "FGState.h"
+#include "models/FGPropulsion.h"
+#include "FGThruster.h"
+
+using namespace std;
 
 namespace JSBSim {
 
@@ -99,8 +103,9 @@ void FGTurbine::ResetToIC(void)
   Stalled = Seized = Overtemp = Fire = Augmentation = Injection = Reversed = false;
   Cutoff = true;
   phase = tpOff;
-  EGT_degC = 0.0;
-  OilTemp_degK = (Auxiliary->GetTotalTemperature() - 491.69) * 0.5555556 + 273.0;
+  TAT = (Auxiliary->GetTotalTemperature() - 491.69) * 0.5555556;
+  EGT_degC = TAT;
+  OilTemp_degK = TAT + 273.0;
 }
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -112,6 +117,7 @@ double FGTurbine::Calculate(void)
   double thrust;
 
   TAT = (Auxiliary->GetTotalTemperature() - 491.69) * 0.5555556;
+  double qbar = Auxiliary->Getqbar();
   dt = State->Getdt() * Propulsion->GetRate();
   ThrottlePos = FCS->GetThrottlePos(EngineNumber);
   if (ThrottlePos > 1.0) {
@@ -140,7 +146,12 @@ double FGTurbine::Calculate(void)
   if (!Running && Cutoff && Starter) {
      if (phase == tpOff) phase = tpSpinUp;
      }
-  if (!Running && !Cutoff && (N2 > 15.0)) phase = tpStart;
+
+  // start
+  if ((Starter == true) || (qbar > 30.0)) {
+    if (!Running && !Cutoff && (N2 > 15.0)) phase = tpStart;
+  }
+
   if (Cutoff && (phase != tpSpinUp)) phase = tpOff;
   if (dt == 0) phase = tpTrim;
   if (Starved) phase = tpOff;
@@ -271,6 +282,7 @@ double FGTurbine::SpinUp(void)
   OilTemp_degK = Seek(&OilTemp_degK, TAT + 273.0, 0.2, 0.2);
   EPR = 1.0;
   NozzlePosition = 1.0;
+  if (Starter == false) phase = tpOff;
   return 0.0;
 }
 
@@ -278,15 +290,17 @@ double FGTurbine::SpinUp(void)
 
 double FGTurbine::Start(void)
 {
+  double qbar = Auxiliary->Getqbar();
   if ((N2 > 15.0) && !Starved) {       // minimum 15% N2 needed for start
     Cranking = true;                   // provided for sound effects signal
     if (N2 < IdleN2) {
       N2 = Seek(&N2, IdleN2, 2.0, N2/2.0);
       N1 = Seek(&N1, IdleN1, 1.4, N1/2.0);
       EGT_degC = Seek(&EGT_degC, TAT + 363.1, 21.3, 7.3);
-      FuelFlow_pph = Seek(&FuelFlow_pph, IdleFF, 103.7, 103.7);
+      FuelFlow_pph = IdleFF * N2 / IdleN2;
       OilPressure_psi = N2 * 0.62;
       ConsumeFuel();
+      if ((Starter == false) && (qbar < 30.0)) phase = tpOff; // aborted start
       }
     else {
       phase = tpRun;
@@ -313,8 +327,10 @@ double FGTurbine::Stall(void)
   N1 = Seek(&N1, qbar/10.0, 0, N1/10.0);
   N2 = Seek(&N2, qbar/15.0, 0, N2/10.0);
   ConsumeFuel();
-  if (ThrottlePos < 0.01) phase = tpRun;        // clear the stall with throttle
-
+  if (ThrottlePos < 0.01) {
+    phase = tpRun;               // clear the stall with throttle to idle
+    Stalled = false;
+    }
   return 0.0;
 }
 
@@ -325,7 +341,7 @@ double FGTurbine::Seize(void)
     double qbar = Auxiliary->Getqbar();
     N2 = 0.0;
     N1 = Seek(&N1, qbar/20.0, 0, N1/15.0);
-    FuelFlow_pph = IdleFF;
+    FuelFlow_pph = Cutoff ? 0.0 : IdleFF;
     ConsumeFuel();
     OilPressure_psi = 0.0;
     OilTemp_degK = Seek(&OilTemp_degK, TAT + 273.0, 0, 0.2);
@@ -477,26 +493,26 @@ bool FGTurbine::Load(FGFDMExec* exec, Element *el)
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-string FGTurbine::GetEngineLabels(string delimeter)
+string FGTurbine::GetEngineLabels(const string& delimiter)
 {
   std::ostringstream buf;
 
-  buf << Name << "_N1[" << EngineNumber << "]" << delimeter
-      << Name << "_N2[" << EngineNumber << "]" << delimeter
-      << Thruster->GetThrusterLabels(EngineNumber, delimeter);
+  buf << Name << "_N1[" << EngineNumber << "]" << delimiter
+      << Name << "_N2[" << EngineNumber << "]" << delimiter
+      << Thruster->GetThrusterLabels(EngineNumber, delimiter);
 
   return buf.str();
 }
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-string FGTurbine::GetEngineValues(string delimeter)
+string FGTurbine::GetEngineValues(const string& delimiter)
 {
   std::ostringstream buf;
 
-  buf << N1 << delimeter
-      << N2 << delimeter
-      << Thruster->GetThrusterValues(EngineNumber, delimeter);
+  buf << N1 << delimiter
+      << N2 << delimiter
+      << Thruster->GetThrusterValues(EngineNumber, delimiter);
 
   return buf.str();
 }
@@ -514,6 +530,10 @@ void FGTurbine::bindmodel()
   property_name = base_property_name + "/injection_cmd";
   PropertyManager->Tie( property_name.c_str(), (FGTurbine*)this, 
                         &FGTurbine::GetInjection, &FGTurbine::SetInjection);
+  property_name = base_property_name + "/seized";
+  PropertyManager->Tie( property_name.c_str(), &Seized);
+  property_name = base_property_name + "/stalled";
+  PropertyManager->Tie( property_name.c_str(), &Stalled);
 }
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -522,7 +542,7 @@ int FGTurbine::InitRunning(void) {
   State->SuspendIntegration();
   Cutoff=false;
   Running=true;  
-  N2=16.0;
+  N2=IdleN2;
   Calculate();
   State->ResumeIntegration();
   return phase==tpRun;