As a beginner here, it seems that in the version of Abaqus/ CAE 2020, I'm using, there are two distinct options when creating a model: "Standard and Explicit" and "Electromagnetic." but no CFD (Computational Fluid Dynamics) instead they have the electromagnetic option, Why? very confusing to start my simulation about fluid flow simulation? When I saw some videos on youtube they had 3 Options but I had just two options. Please guide me through this?