1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2008 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
11 OpenFOAM is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by the
13 Free Software Foundation; either version 2 of the License, or (at your
14 option) any later version.
16 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 You should have received a copy of the GNU General Public License
22 along with OpenFOAM; if not, write to the Free Software Foundation,
23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 temperatureAndPressure.H
29 Accumulates values for temperature and pressure measurement, and
30 calculates and outputs the average values at output times.
31 Requires temperatureAndPressureVariables.H to be declared before the
34 \*---------------------------------------------------------------------------*/
36 accumulatedTotalMomentum += singleStepTotalMomentum;
38 accumulatedTotalMass += singleStepTotalMass;
40 accumulatedTotalKE += singleStepTotalKE;
42 accumulatedTotalPE += singleStepTotalPE;
44 accumulatedTotalrDotfSum += singleStepTotalrDotf;
46 accumulatedNMols += singleStepNMols;
48 if (runTime.outputTime())
54 Info << "calculating averages" << endl;
58 2.0/(3.0 * moleculeCloud::kb * accumulatedNMols)
63 0.5*magSqr(accumulatedTotalMomentum)/accumulatedTotalMass
70 (accumulatedNMols/nAveragingSteps)
72 moleculeCloud::kb * averageTemperature
74 accumulatedTotalrDotfSum/(6.0 * nAveragingSteps)
82 Info << "----------------------------------------" << nl
83 << "Averaged properties" << nl
84 << "Average |velocity| = "
85 << mag(accumulatedTotalMomentum)/accumulatedTotalMass
87 << "Average temperature = "
88 << averageTemperature << " K" << nl
89 << "Average pressure = "
90 << averagePressure << " N/m^2" << nl
91 << "----------------------------------------" << endl;
95 Info << "Not averaging temperature and pressure: "
96 << "no molecules in system" << endl;
101 accumulatedTotalMomentum = vector::zero;
103 accumulatedTotalMass = 0.0;
105 accumulatedTotalKE = 0.0;
107 accumulatedTotalPE = 0.0;
109 accumulatedTotalrDotfSum = 0.0;
111 accumulatedNMols = 0;
114 // ************************************************************************* //