Add process safety functionality

src/main/java/neqsim/process/controllerdevice/ModelPredictiveController.java

@@ -782,6 +782,8 @@ public void setPreferredControlVector(double... references) {
    * @deprecated Use {@link #setPreferredControlVector(double...)} to configure the nominal control
    *             point. This method is retained for backwards compatibility with earlier snapshots of
    *             the MPC implementation.
+   *
+   * @param references preferred control levels for the energy terms
    */
   @Deprecated
   public void setEnergyReferenceVector(double... references) {
@@ -1200,6 +1202,8 @@ public void setMoveLimits(double minDelta, double maxDelta) {
   /**
    * @deprecated Use {@link #setPreferredControlValue(double)} when configuring the MPC economic
    *             target. This method is kept for compatibility with earlier code samples.
+   *
+   * @param reference preferred steady-state control value for the single-input controller
    */
   @Deprecated
   public void setEnergyReference(double reference) {

src/main/java/neqsim/process/equipment/diffpressure/DifferentialPressureFlowCalculator.java

@@ -192,6 +192,14 @@ public static FlowCalculationResult calculate(double[] pressureBarg, double[] te
 
   /**
    * Convenience overload using default composition and normalisation.
+   *
+   * @param pressureBarg pressure values in barg
+   * @param temperatureC temperature values in degrees Celsius
+   * @param differentialPressureMbar differential pressure across restriction in mbar
+   * @param flowType device type (Venturi, Orifice, ISA1932, V-Cone, DallTube, Annubar, Nozzle,
+   *        Simplified, Perrys-Orifice)
+   * @param flowData geometry parameters (see individual calculation methods)
+   * @return flow calculation result
    */
   public static FlowCalculationResult calculate(double[] pressureBarg, double[] temperatureC,
       double[] differentialPressureMbar, String flowType, double[] flowData) {
@@ -201,6 +209,13 @@ public static FlowCalculationResult calculate(double[] pressureBarg, double[] te
 
   /**
    * Convenience overload with default flow data and composition.
+   *
+   * @param pressureBarg pressure values in barg
+   * @param temperatureC temperature values in degrees Celsius
+   * @param differentialPressureMbar differential pressure across restriction in mbar
+   * @param flowType device type (Venturi, Orifice, ISA1932, V-Cone, DallTube, Annubar, Nozzle,
+   *        Simplified, Perrys-Orifice)
+   * @return flow calculation result
    */
   public static FlowCalculationResult calculate(double[] pressureBarg, double[] temperatureC,
       double[] differentialPressureMbar, String flowType) {