External gear pump transient CFD simulation performed with immersed body solver of ANSYS CFX. CFX simulation files are also attached for download. Enjoy! Original gear pump CAD reference/source: Juan Esteban Paz (JEPaz) (https://grabcad.com/questions/ansys-external-gear-pump-simulation-inmersed-solids-cfx). In case you use it you must give credit.