mirror of
https://develop.openfoam.com/Development/openfoam.git
synced 2025-11-28 03:28:01 +00:00
ENH: proudmanAcousticPower - extended to operate on mean turbulence fields
Example using mean turbulence fields (mean fields should be available e.g. from
a fieldAverage function object)
proudmanAcousticPower1
{
// Mandatory entries (unmodifiable)
type proudmanAcousticPower;
libs (fieldFunctionObjects);
...
// Turbulence field names (if not retrieved from the turb model)
k kMean;
epsilon epsilonMean;
omega none; // omegaMean
}
This commit is contained in:
Andrew Heather
committed by
Mark Olesen
Mark Olesen
parent
83fd1c9579
commit
5cba269072
@ -5,7 +5,7 @@
|
||||
\\ / A nd | www.openfoam.com
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
Copyright (C) 2019 OpenCFD Ltd.
|
||||
Copyright (C) 2019-2021 OpenCFD Ltd.
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
@ -55,8 +55,7 @@ Foam::functionObjects::proudmanAcousticPower::rhoScale
|
||||
const tmp<volScalarField>& fld
|
||||
) const
|
||||
{
|
||||
const basicThermo* thermoPtr =
|
||||
getObjectPtr<basicThermo>(basicThermo::dictName);
|
||||
const auto* thermoPtr = getObjectPtr<basicThermo>(basicThermo::dictName);
|
||||
|
||||
if (thermoPtr)
|
||||
{
|
||||
@ -80,8 +79,7 @@ Foam::functionObjects::proudmanAcousticPower::rhoScale
|
||||
Foam::tmp<Foam::volScalarField>
|
||||
Foam::functionObjects::proudmanAcousticPower::a() const
|
||||
{
|
||||
const basicThermo* thermoPtr =
|
||||
getObjectPtr<basicThermo>(basicThermo::dictName);
|
||||
const auto* thermoPtr = getObjectPtr<basicThermo>(basicThermo::dictName);
|
||||
|
||||
if (thermoPtr)
|
||||
{
|
||||
@ -105,6 +103,44 @@ Foam::functionObjects::proudmanAcousticPower::a() const
|
||||
}
|
||||
|
||||
|
||||
Foam::tmp<Foam::volScalarField>
|
||||
Foam::functionObjects::proudmanAcousticPower::k() const
|
||||
{
|
||||
if (kName_ != "none")
|
||||
{
|
||||
return lookupObject<volScalarField>(kName_);
|
||||
}
|
||||
|
||||
const auto& turb =
|
||||
lookupObject<turbulenceModel>(turbulenceModel::propertiesName);
|
||||
|
||||
return turb.k();
|
||||
}
|
||||
|
||||
|
||||
Foam::tmp<Foam::volScalarField>
|
||||
Foam::functionObjects::proudmanAcousticPower::epsilon() const
|
||||
{
|
||||
if (epsilonName_ != "none")
|
||||
{
|
||||
return lookupObject<volScalarField>(epsilonName_);
|
||||
}
|
||||
|
||||
if (omegaName_ != "none")
|
||||
{
|
||||
// Construct epsilon on-the-fly
|
||||
const auto& omega = lookupObject<volScalarField>(omegaName_);
|
||||
const scalar betaStar = 0.09;
|
||||
return betaStar*k()*omega;
|
||||
}
|
||||
|
||||
const auto& turb =
|
||||
lookupObject<turbulenceModel>(turbulenceModel::propertiesName);
|
||||
|
||||
return turb.epsilon();
|
||||
}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
|
||||
|
||||
Foam::functionObjects::proudmanAcousticPower::proudmanAcousticPower
|
||||
@ -117,7 +153,10 @@ Foam::functionObjects::proudmanAcousticPower::proudmanAcousticPower
|
||||
fvMeshFunctionObject(name, runTime, dict),
|
||||
alphaEps_(0.1),
|
||||
rhoInf_("0", dimDensity, -1),
|
||||
aRef_(dimVelocity, Zero)
|
||||
aRef_(dimVelocity, Zero),
|
||||
kName_("none"),
|
||||
epsilonName_("none"),
|
||||
omegaName_("none")
|
||||
{
|
||||
read(dict);
|
||||
|
||||
@ -167,10 +206,49 @@ bool Foam::functionObjects::proudmanAcousticPower::read(const dictionary& dict)
|
||||
{
|
||||
if (fvMeshFunctionObject::read(dict))
|
||||
{
|
||||
Info<< type() << " " << name() << nl;
|
||||
|
||||
dict.readIfPresent("alphaEps", alphaEps_);
|
||||
rhoInf_.readIfPresent("rhoInf", dict);
|
||||
aRef_.readIfPresent("aRef", dict);
|
||||
|
||||
if (dict.readIfPresent("k", kName_))
|
||||
{
|
||||
Info<< " k field: " << kName_ << endl;
|
||||
}
|
||||
else
|
||||
{
|
||||
Info<< " k field from turbulence model" << endl;
|
||||
}
|
||||
|
||||
if (dict.readIfPresent("epsilon", epsilonName_))
|
||||
{
|
||||
Info<< " epsilon field: " << epsilonName_ << endl;
|
||||
}
|
||||
else
|
||||
{
|
||||
Info<< " epsilon field from turbulence model (if needed)"
|
||||
<< endl;
|
||||
}
|
||||
|
||||
if (dict.readIfPresent("omega", omegaName_))
|
||||
{
|
||||
Info<< " omega field: " << omegaName_ << endl;
|
||||
}
|
||||
else
|
||||
{
|
||||
Info<< " omega field from turbulence model (if needed)" << endl;
|
||||
}
|
||||
|
||||
if (epsilonName_ != "none" && omegaName_ != "none")
|
||||
{
|
||||
FatalIOErrorInFunction(dict)
|
||||
<< "either epsilon or omega field names can be set but not both"
|
||||
<< exit(FatalIOError);
|
||||
}
|
||||
|
||||
Info<< endl;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -180,18 +258,13 @@ bool Foam::functionObjects::proudmanAcousticPower::read(const dictionary& dict)
|
||||
|
||||
bool Foam::functionObjects::proudmanAcousticPower::execute()
|
||||
{
|
||||
const turbulenceModel& turb =
|
||||
lookupObject<turbulenceModel>(turbulenceModel::propertiesName);
|
||||
const volScalarField Mt(sqrt(2*k())/a());
|
||||
|
||||
const volScalarField Mt(sqrt(2*turb.k())/a());
|
||||
auto& P_A = mesh_.lookupObjectRef<volScalarField>(scopedName("P_A"));
|
||||
|
||||
volScalarField& P_A =
|
||||
mesh_.lookupObjectRef<volScalarField>(scopedName("P_A"));
|
||||
P_A = rhoScale(alphaEps_*epsilon()*pow5(Mt));
|
||||
|
||||
P_A = rhoScale(alphaEps_*turb.epsilon()*pow5(Mt));
|
||||
|
||||
volScalarField& L_P =
|
||||
mesh_.lookupObjectRef<volScalarField>(scopedName("L_P"));
|
||||
auto& L_P = mesh_.lookupObjectRef<volScalarField>(scopedName("L_P"));
|
||||
|
||||
L_P = 10*log10(P_A/dimensionedScalar("PRef", dimPower/dimVolume, 1e-12));
|
||||
|
||||
@ -203,15 +276,13 @@ bool Foam::functionObjects::proudmanAcousticPower::write()
|
||||
{
|
||||
Log << type() << " " << name() << " write:" << nl;
|
||||
|
||||
const volScalarField& P_A =
|
||||
mesh_.lookupObject<volScalarField>(scopedName("P_A"));
|
||||
const auto& P_A = mesh_.lookupObject<volScalarField>(scopedName("P_A"));
|
||||
|
||||
Log << " writing field " << P_A.name() << nl;
|
||||
|
||||
P_A.write();
|
||||
|
||||
const volScalarField& L_P =
|
||||
mesh_.lookupObject<volScalarField>(scopedName("L_P"));
|
||||
const auto& L_P = mesh_.lookupObject<volScalarField>(scopedName("L_P"));
|
||||
|
||||
Log << " writing field " << L_P.name() << nl;
|
||||
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
\\ / A nd | www.openfoam.com
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
Copyright (C) 2019-2020 OpenCFD Ltd.
|
||||
Copyright (C) 2019-2021 OpenCFD Ltd.
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
@ -78,6 +78,10 @@ Usage
|
||||
// For incompressible flow simulations
|
||||
rhoInf 1.225;
|
||||
aRef 340;
|
||||
// Turbulence field names (if not retrieved from the turb model)
|
||||
k kMean;
|
||||
epsilon epsilonMean;
|
||||
omega none; // omegaMean
|
||||
|
||||
// Optional (inherited) entries
|
||||
...
|
||||
@ -94,6 +98,9 @@ Usage
|
||||
aRef | Speed of sound (incompressible) | scalar <!--
|
||||
--> | conditional | -
|
||||
alphaEps | Empirical model coefficient | scalar | no | 0.1
|
||||
k | Turbulence k field name | word | no | none
|
||||
epsilon | Turbulence epsilon field name | word | no | none
|
||||
omega | Turbulence omega field name | word | no | none
|
||||
\endtable
|
||||
|
||||
The inherited entries are elaborated in:
|
||||
@ -148,6 +155,15 @@ class proudmanAcousticPower
|
||||
//- Reference speed of sound (incompressible calcs only)
|
||||
dimensionedScalar aRef_;
|
||||
|
||||
//- Name of turbulence k field; default = none
|
||||
word kName_;
|
||||
|
||||
//- Name of turbulence epsilon field; default = none
|
||||
word epsilonName_;
|
||||
|
||||
//- Name of turbulence omega field; default = none
|
||||
word omegaName_;
|
||||
|
||||
|
||||
// Private Member Functions
|
||||
|
||||
@ -157,6 +173,12 @@ class proudmanAcousticPower
|
||||
//- Speed of sound
|
||||
tmp<volScalarField> a() const;
|
||||
|
||||
//- Turbulence kinetic energy dissipation rate
|
||||
tmp<volScalarField> k() const;
|
||||
|
||||
//- Turbulence dissipation
|
||||
tmp<volScalarField> epsilon() const;
|
||||
|
||||
|
||||
public:
|
||||
|
||||
|
||||
Reference in New Issue
Block a user