CADthru is a data translation tool used to prepare CAD data for CFD analysis purposes. CADthru's robust functions enable fast and automatic repair of geometric and topological data defects in the original CAD data. CADthru helps reduce cumbersome re-editing processes that show up when the CFD mesh is being generated and prevent creation of a high quality mesh. The CAD defects come from artifacts from the original CAD system and the processes used to create the CAD data. Using CADthru, and enables seamless translation from CAD data to CFD data.