From df16286aa9ac600619c85b36cfc16212ea2f584b Mon Sep 17 00:00:00 2001
From: mattijs <mattijs>
Date: Wed, 25 Apr 2018 12:39:53 +0100
Subject: [PATCH] ENH: prescribedRotation: added comment
---
.../restraints/prescribedRotation/prescribedRotation.C | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/rigidBodyDynamics/restraints/prescribedRotation/prescribedRotation.C b/src/rigidBodyDynamics/restraints/prescribedRotation/prescribedRotation.C
index d1e9198872..483e61c29c 100644
--- a/src/rigidBodyDynamics/restraints/prescribedRotation/prescribedRotation.C
+++ b/src/rigidBodyDynamics/restraints/prescribedRotation/prescribedRotation.C
@@ -123,7 +123,10 @@ void Foam::RBD::restraints::prescribedRotation::restrain
scalar Inertia = mag(model_.I(model_.master(bodyID_)).Ic());
- // from the definition of the angular momentum
+ // from the definition of the angular momentum:
+ // moment = Inertia*ddt(omega)
+ // with time step 1:
+ // moment = Inertia*(omega_wanted - omega)
vector moment
(
(Inertia * (omegaSet_.value(model_.time().value()) - omega) & a) * a
--
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