192 lines
5.2 KiB
Plaintext
192 lines
5.2 KiB
Plaintext
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/*--------------------------------*- C++ -*----------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: 2.3.0 |
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| \\ / A nd | Web: www.OpenFOAM.org |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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FoamFile
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{
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version 2.0;
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format ascii;
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class dictionary;
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location "constant";
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object kinematicCloudProperties;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#include "../setUp" // include file with all the settings
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// NUMERICAL SETTINGS
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solution
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{
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// Activation of particles and coupling method
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active true;//false; // activation of particles
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coupled true;//false; //two-way coupling
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transient yes;
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cellValueSourceCorrection on;
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// Interpolation method
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interpolationSchemes
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{
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rho cell;
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U cellPoint;
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mu cell;
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}
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// Integration method
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integrationSchemes
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{
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U analytical; //Euler;
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}
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// Relaxation
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sourceTerms
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{
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schemes
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{
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U semiImplicit 0.5; //the number is relaxCoeff for the field
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}
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}
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}
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// FLOW PROPERTIES
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constantProperties
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{
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rho0 $rhoPar;
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alphaMax 1;
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}
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// PARTICLE SUBMODELS
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subModels
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{
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// Acting forces
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particleForces
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{
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sphereDrag;
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gravity;
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}
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// Injection models
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injectionModels
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{
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/*
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model1
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{
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type patchInjection;
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parcelBasisType mass;
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patchName atmosphere; //patch for injecting particles
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U0 (0 0 -1.544); //terminal fall velocity
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sizeDistribution //particle size distribution
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{
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type normal;
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normalDistribution
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{
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expectation 0.0002;
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variance 0.00005;
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minValue 5e-5;
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maxValue 0.0005;
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}
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}
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flowRateProfile constant 1; //flow rate
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massTotal 3543.45; //kg. Mass injected in "duration"
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SOI 0;
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duration 3600; //s. Time duration where massTotal is injected.
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parcelsPerSecond 0.05e6; //number of particles per s.
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}
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*/
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}
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// Particle dispersion model
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dispersionModel none;
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// Rebound-splash of snow particles
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patchInteractionModel localInteractionStickReboundSplash; //none;
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localInteractionStickReboundSplashCoeffs
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{
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patches
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(
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atmosphere
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{
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type escape;
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e 1.0;
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mu 0.0;
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}
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// Snow surface settings
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snowBed
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{
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// Rebound coefficients
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type stickReboundSplash;
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Pm 0.9; //(-) max probability of rebound.
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gamma 2.0; //(-) rebound
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// Splash entrainment coefficients
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epsilonr 0.25; //(-) energy balance
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mur 0.5; //(-) momentum balance
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muf 0.4; //(-) momentum balance
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bEne 10e-9; //(-) bed cohesion
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corrm 0.0; //(-) mass-velocity correlation
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corre 0.0; //(-) mass-velocity correlation
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pppMax $pppMax; //maximum number of particles per parcel
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// Particle diameter properties
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dm $dm; //m. mean particle diameter
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ds $ds; //m. std deviation of diameter
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d_max $d_max; //m. maximum particle diameter
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d_min $d_min; //m. minimum particle diameter
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}
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);
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// Particle probability distributions
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sizeDistributionTriple
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{
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type normalLogNormalExponential;
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normalLogNormalExponentialDistribution
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{
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//nothing
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}
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}
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}
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heatTransferModel none;
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surfaceFilmModel none;
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collisionModel none;
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stochasticCollisionModel none;
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radiation off;
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// Aerodynamic entrainment of snow particles
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bedAerodynamicLiftInjectionModel logLawShearStress; //none;
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logLawShearStressCoeffs
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{
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// Particle probability distributions
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sizeDistributionTriple
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{
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type normalLogNormalExponential;
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normalLogNormalExponentialDistribution
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{
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//nothing
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}
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};
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// Particle and coefficient settings
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aerodynamicLiftPatch snowBed; //patch for entrainement
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tauLogLaw false; //shear stress computation method
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dm $dm; //m. mean particle diameter.
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ds $ds; //m. std deviation of diameter
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d_max $d_max; //m. maximum particle diameter
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d_min $d_min; //m. minimum particle diameter
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z0 $Z0; //m. aerodynamic roughness.
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pppMin $pppMin; //number of particles per parcel.
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SOA 100; //s. start of activation.
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Acst 0.2; //(-). fluid threshold coefficient.
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}
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}
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cloudFunctions
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{
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}
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// ************************************************************************* //
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