I believe you can take pressure results from a flow simulation and input them in a structural simulation. You can also do this manually if the pressure gradient is relatively small. Another thing that comes to mind is to check whether you wind load is such that it could cause periodic excitation.
"but thats not a proper representation of wind flow"
what representation of wind flow do you want?
shaun is right you can run the flow simulation and export to solidworks simulation
if you don't have that, its a matter of assumptions you're ok with. you can start with just a pressure or force that is the same over the whole area and make that assumption. or you can estimate the distribution and use a non uniform pressure distribution.