Multi-block grids The geometry is a set of hexahedral solids which have a logical representation Each block in the geometry is called a ' solid Each solid in the geometry can represent a fluid, porous or solid region 2-2 CFX-4.3V4.3.1H CFX-4 Introductory Training(Dec 1999CFX-4 Introductory Training (Dec 1999) 2-2 CFX-4.3 V4.3.1H Multi-block Grids The geometry is a set of hexahedral solids which have a logical representation. Each block in the geometry is called a ‘solid’. Each solid in the geometry can represent a fluid, porous or solid region