# HG changeset patch
# User calpe  <miguel.calpe.linares@gmail.com>
# Date 1538638758 -7200
#      Thu Oct 04 09:39:18 2018 +0200
# Node ID d33df9ea60eb0cda562fd4206db721bddec93208
# Parent  a7b1b48570a24611538689991b350710dddab9c7
Factor 2pi in omega_af.

diff --git a/fluidsim/solvers/ns2d/strat/output/__init__.py b/fluidsim/solvers/ns2d/strat/output/__init__.py
--- a/fluidsim/solvers/ns2d/strat/output/__init__.py
+++ b/fluidsim/solvers/ns2d/strat/output/__init__.py
@@ -158,8 +158,9 @@
         params = self.sim.params
 
         omega_l = params.N * self.froude_number
-        if params.forcing.key_forced is None:
-            omega_af = params.forcing.forcing_rate ** (1. / 3)
+        if params.forcing.key_forced is None or \
+           params.forcing.key_forced == "rot_fft":
+            omega_af = (2 * np.pi) * params.forcing.forcing_rate ** (1. / 3)
         elif params.forcing.key_forced == "ap_fft":
             nkmax_forcing = params.forcing.nkmax_forcing
             nkmin_forcing = params.forcing.nkmin_forcing