diff --git a/FlowMeters/DoubleElbow/data_usV30.npz b/FlowMeters/DoubleElbow/data_usV30.npz
new file mode 100644
index 0000000000000000000000000000000000000000..d8ca1ef8a08ec56a9ef856f1ca6e5d71a5d49149
Binary files /dev/null and b/FlowMeters/DoubleElbow/data_usV30.npz differ
diff --git a/FlowMeters/SingleElbow/data_usV30.npz b/FlowMeters/SingleElbow/data_usV30.npz
new file mode 100644
index 0000000000000000000000000000000000000000..b321c2077e6da909e7590c7dffb2aa5ee1162f0e
Binary files /dev/null and b/FlowMeters/SingleElbow/data_usV30.npz differ
diff --git a/GUI_Elbow.py b/GUI_Elbow.py
index 354ac32fbe4bc76077897fc2b507b42d7f303747..50ae60905576809bf9414ce3d8420c382529ec60 100644
--- a/GUI_Elbow.py
+++ b/GUI_Elbow.py
@@ -1029,18 +1029,21 @@ class Main(wx.Frame):
     def OnLoad_SE(self,e):
         global flow
         flow = Elbow_profile('SingleElbow')
+        del self.mypanel
         wx.Frame.__init__(self, parent = None,id = wx.ID_ANY, title = "Flowmeter behind Elbow", size = (1400,1000))
         self.mypanel = mainPanel(self)
         self.mypanel.__init__(self)
     def OnLoad_DE(self,e):
         global flow
         flow = Elbow_profile('DoubleElbow')
+        del self.mypanel
         wx.Frame.__init__(self, parent = None,id = wx.ID_ANY, title = "Flowmeter behind Elbow", size = (1400,1000))
         self.mypanel = mainPanel(self)
         self.mypanel.__init__(self)
     def OnLoad_DSE(self,e):
         global flow
         flow = Elbow_profile('Double_S_Elbow')
+        del self.mypanel
         wx.Frame.__init__(self, parent = None,id = wx.ID_ANY, title = "Flowmeter behind Elbow", size = (1400,1000))
         self.mypanel = mainPanel(self)
         self.mypanel.__init__(self)
@@ -1055,9 +1058,7 @@ if __name__ == "__main__":
     #
     flow = Elbow_profile('DoubleElbow')
     fm   = FlowMeter()
-    globdz = 0
     #
-    app = 0
     app = wx.App()
     frame = Main()
     frame.Show()