In SOLIDWORKS, we have the ability to take advantage of an integrated interface where we can use multiple simulation tools. If you are using Flow Simulation and Simulation (FEA), you can export Flow Simulation loads to FEA studies. In the following example, I ran flow over a truck body and exported the pressure loads to SOLIDWORKS Simulation. The goal of this particular problem is to identify the displacement of a truck cap as a function of the aerodynamic pressures.
In this example, there is 90mph airflow over the truck body. To start this problem, I ran through the Flow Simulation Wizard tool and set the problem as an external flow analysis. I gave the moving fluid (air) an initial velocity of 90 mph normal to the truck body and ran the study. If I want to see how aerodynamic my model is, I can view flow trajectories over my model. Figure 1 shows a cut plot of the velocities over the body with flow trajectories modeled as streamlines.
Figure 1: Velocity Cut Plot with Streamlines
Due to pressure being derived as an output variable in Flow Simulation, I can export that information over to a Finite Element Analysis in SOLIDWORKS Simulation. If you are using SOLIDWORKS 2015, you do this by going to the toolbar: Tools > Flow Simulation > Tools > Export Results to Simulation. Once in Simulation, I need to import the flow loads into my study. I do this by going to Study Properties > Flow/Thermal Effects > Fluid Pressure Option > Include fluid pressure effects from SOLIDWORKS Flow Simulation (Browse to .fld file).