STAR-CD OR COMET

Merkur

I can not understand what star-cd is. If I get let say star-cd will I need other cad application to design product? If I have other cad product let say SolidWorks will star-cd be integrated in SW so when I finish with modeling just go to kind of icon in SW and it gives me Star-cd GUI when I can work? If I change something in model will it automatically update cfd geometry-how does integration works? Please be detail I can not figure out it because I never had star-cd.

Comet-is it part of star-cd that is used to solve CFD analysis or star-cd using it own?

Please be detail to be able to have complete picture of STAR_CD.

Thanks, Merkur