Abstract
This paper presents the corner velocity interpolation as bilinear and trilinear mixed finite elements on quadrilaterals and hexhahedra. The corner velocity interpolations are bilinear or trilinear vertex based barycentric coordinate interpolations on quadrilaterals and hexhahedra. The benefit of this velocity interpolation is that it ensure reproduction of uniform flow. We provide edge based basis functions ensuring the same interpolation, and show how this basis functions would perform as separate velocity elements. The resulting H(div) finite elements contains the constants.