Cleanup before running a case

paramsearch/OpenFOAMExperiment.py

@@ -32,6 +32,7 @@ class OpenFOAMExperiment:
         return data[:, 2] / 1e-3, data[:, 3] / 1e3
 
     def evaluate(self, **par):
+        self.__execute_command('./Allclean')
         m = "(Liao{turbulence yes;laminarShear yes;turbulentShear yes;interfacialFriction yes;BTurb {BTurb};BShear {BShear};BEddy {BEddy};BFric 1.0;})"
         for k, v in par.items():
             m = m.replace('{' + k + '}', str(v))