Default CMA in LiftDrag pluginto zero (#2272)

* Default CMA in LiftDrag pluginto zero The changes in #2189 have caused a regression for our upstream users. This fix disables moment calculations by defaulting Cma to zero. It should help mitigate some of the regression. There is also an [ongoing discussion](#2189 (comment)) as to whether the cos term should be cos^2 or cos. Signed-off-by: Arjo Chakravarty <[email protected]> * remove cos change to address one problem at a time Signed-off-by: Arjo Chakravarty <[email protected]> --------- Signed-off-by: Arjo Chakravarty <[email protected]>
gazebosim · Dec 27, 2023 · 4eb9484 · 4eb9484
1 parent 8ec622d
commit 4eb9484
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/systems/lift_drag/LiftDrag.cc b/src/systems/lift_drag/LiftDrag.cc
@@ -74,7 +74,7 @@ class gz::sim::systems::LiftDragPrivate
   /// \brief Coefficient of Moment / alpha slope.
   /// Moment = C_M * q * S
   /// where q (dynamic pressure) = 0.5 * rho * v^2
-  public: double cma = 0.01;
+  public: double cma = 0.0;
 
   /// \brief angle of attach when airfoil stalls
   public: double alphaStall = GZ_PI_2;