******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Dear all, I am attempting to run a cwipi coupling of the APE acoustic and incompressible navier stokes solver however they are not running correctly. The NS solver is sending out velocity files to the APE solver and is running correctly however the APE solver is meant to be reading files but cannot find a the file I have named despite it being done correctly. Any help would be appreciated. Regards, Dauood Tariq