From 80175df2ddfe9f0703726f03c3edbb675c41cf2b Mon Sep 17 00:00:00 2001
From: henry <Henry Weller h.weller@opencfd.co.uk>
Date: Fri, 29 May 2009 11:57:15 +0100
Subject: [PATCH] Changed the BC to switch between "pd" and static pressure
according to the variable name.
---
.../fixedFluxBuoyantPressureFvPatchScalarField.C | 12 +++++++++++-
.../fixedFluxBuoyantPressureFvPatchScalarField.H | 5 ++++-
2 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/fixedFluxBuoyantPressure/fixedFluxBuoyantPressureFvPatchScalarField.C b/src/finiteVolume/fields/fvPatchFields/derived/fixedFluxBuoyantPressure/fixedFluxBuoyantPressureFvPatchScalarField.C
index c31f5acc5c3..b6f48ff6ada 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/fixedFluxBuoyantPressure/fixedFluxBuoyantPressureFvPatchScalarField.C
+++ b/src/finiteVolume/fields/fvPatchFields/derived/fixedFluxBuoyantPressure/fixedFluxBuoyantPressureFvPatchScalarField.C
@@ -113,7 +113,17 @@ void fixedFluxBuoyantPressureFvPatchScalarField::updateCoeffs()
const fvPatchField<scalar>& rho =
patch().lookupPatchField<volScalarField, scalar>("rho");
- gradient() = -rho.snGrad()*(g.value() & patch().Cf());
+ // If the variable name is "pd" assume it is p - rho*g.h
+ // and set the gradient appropriately.
+ // Otherwise assume the variable is the static pressure.
+ if (dimensionedInternalField().name() == "pd")
+ {
+ gradient() = -rho.snGrad()*(g.value() & patch().Cf());
+ }
+ else
+ {
+ gradient() = rho*(g.value() & patch().nf());
+ }
fixedGradientFvPatchScalarField::updateCoeffs();
}
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/fixedFluxBuoyantPressure/fixedFluxBuoyantPressureFvPatchScalarField.H b/src/finiteVolume/fields/fvPatchFields/derived/fixedFluxBuoyantPressure/fixedFluxBuoyantPressureFvPatchScalarField.H
index 3ce584bf873..8e433cb8f16 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/fixedFluxBuoyantPressure/fixedFluxBuoyantPressureFvPatchScalarField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/fixedFluxBuoyantPressure/fixedFluxBuoyantPressureFvPatchScalarField.H
@@ -26,7 +26,10 @@ Class
Foam::fixedFluxBuoyantPressureFvPatchScalarField
Description
- Foam::fixedFluxBuoyantPressureFvPatchScalarField
+ Set the pressure gradient boundary condition appropriately for buoyant flow.
+
+ If the variable name is "pd" assume it is p - rho*g.h and set the gradient
+ appropriately. Otherwise assume the variable is the static pressure.
SourceFiles
fixedFluxBuoyantPressureFvPatchScalarField.C
--
GitLab