ENH: noiseModels - updated parallel usage (no longer needs proc dirs) and apply input data validation

src/randomProcesses/noise/noiseModels/noiseModel/noiseModel.C

@@ -92,6 +92,28 @@ Foam::scalar Foam::noiseModel::checkUniformTimeStep
 }
 
 
+bool Foam::noiseModel::validateBounds(const scalarList& p) const
+{
+    forAll(p, i)
+    {
+        if ((p[i] < minPressure_) || (p[i] > maxPressure_))
+        {
+            WarningInFunction
+                << "Pressure data at position " << i
+                << " is outside of permitted bounds:" << nl
+                << "    pressure: " << p[i] << nl
+                << "    minimum pressure: " << minPressure_ << nl
+                << "    maximum pressure: " << maxPressure_ << nl
+                << endl;
+
+            return false;
+        }
+    }
+
+    return true;
+}
+
+
 Foam::label Foam::noiseModel::findStartTimeIndex
 (
     const instantList& allTimes,
@@ -141,6 +163,8 @@ Foam::noiseModel::noiseModel(const dictionary& dict, const bool readFields)
     startTime_(0),
     windowModelPtr_(),
     graphFormat_("raw"),
+    minPressure_(-0.5*VGREAT),
+    maxPressure_(0.5*VGREAT),
     outputPrefix_(),
     writePrmsf_(true),
     writeSPL_(true),
@@ -178,6 +202,8 @@ bool Foam::noiseModel::read(const dictionary& dict)
     }
     dict.readIfPresent("startTime", startTime_);
     dict.readIfPresent("graphFormat", graphFormat_);
+    dict.readIfPresent("minPressure", minPressure_);
+    dict.readIfPresent("maxPressure", maxPressure_);
     dict.readIfPresent("outputPrefix", outputPrefix_);
 
     // Check number of samples  - must be a power of 2 for our FFT
@@ -225,6 +251,8 @@ bool Foam::noiseModel::read(const dictionary& dict)
 
     windowModelPtr_ = windowModel::New(dict, nSamples_);
 
+    Info<< nl << endl;
+
     return true;
 }
 

src/randomProcesses/noise/noiseModels/noiseModel/noiseModel.H

@@ -126,7 +126,7 @@ protected:
         //- Upper frequency limit, default = 10kHz
         scalar fUpper_;
 
-        //- Flag to indicate that custom frequenct bounds are being used
+        //- Flag to indicate that custom frequency bounds are being used
         bool customBounds_;
 
         //- Start time, default = 0s
@@ -139,6 +139,15 @@ protected:
         word graphFormat_;
 
 
+        // Data validation
+
+            //- Min pressure value
+            scalar minPressure_;
+
+            //- Min pressure value
+            scalar maxPressure_;
+
+
         // Write options
 
             //- Output  file prefix, default = ''
@@ -176,6 +185,9 @@ protected:
             const scalarList& times
         ) const;
 
+        //- Return true if all pressure data is within min/max bounds
+        bool validateBounds(const scalarList& p) const;
+
         //- Find and return start time index
         label findStartTimeIndex
         (

src/randomProcesses/noise/noiseModels/pointNoise/pointNoise.C

@@ -84,8 +84,16 @@ void pointNoise::processData
     Info<< "    read " << t.size() << " values" << nl << endl;
 
     Info<< "Creating noise FFT" << endl;
+
     const scalar deltaT = checkUniformTimeStep(t);
 
+    if (!validateBounds(p))
+    {
+        Info<< "No noise data generated" << endl;
+        return;
+    }
+
+
     // Determine the windowing
     windowModelPtr_->validate(t.size());
     const windowModel& win = windowModelPtr_();