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If AcuFieldView is launched from AcuConsole, the default is to use the direct reader by selecting the desired problem.run.Log file. Once in AcuFieldView, a data file can be read using File > Data Input >AcuSolve [Direct Reader] > Browse to desired .Log file. Or if acuTrans or acuOut has been used to generate FieldView format data files: File > Data Input > AcuSolve [FV-UNS Export] > Browse to desired .fv file.
AcuSolve contains a set of boundary conditions that automatically sets a boundary layer profile at an inlet boundary. When using the inflow boundary condition types of mass_flux, flow_rate, and average_velocity,AcuSolve computes an appropriate boundary layer profile for the velocity and turbulence fields based on the the distance from no-slip walls, and estimated Reynolds Number. The profile is re-computed at each time step such that deforming meshes are properly accounted for in the calculation. This boundary condition provides a robust method of automatically specifying physically realistic inlet conditions. It is much more realistic than specifying a constant velocity condition for internal flow applications.
The best way to reduce the size of ACUSIM.DIR is to write Nodal and Restart output for required time steps only. Also using the Number of saved states option for Restart Output will only save the latest restart files and can save some disk space. These things should be considered before running the simulation. In case if the simulation is already performed and a huge ACUSIM.DIR is present, User can extract the required files from ACUSIM.DIR. This can be done from command line by issuing commands acuCpProbeFiles and acuCpOutFiles to extract sufficient files for running acuProbe and Nodal output respectively.
To get the nodal output on specific surfaces, indicate a non-zero value for 'Nodal time step frequency' or 'Nodal time frequency' under the SURFACE_OUTPUT command. Use 'acuTrans' as below to extract the nodal area and traction on the desired surface. The product of nodal area and nodal traction will be the nodal force components. acuTrans -osf -osfs "Wall" -osfv node,area,traction