An understanding of the warmth and mass switch phenomena in porous media implies description of the circulation behaviour inside it; this reality is of elementary significance to many chemical engineering techniques similar to packed mattress extration or catalytic response gear. In basic, porous media is described as an successfully homogeneous system, neglecting the complexities of the circulation inside the void area research gear. The particulars of this native circulation course of might, nonetheless, be crucial issue influencing the behaviour of a given bodily course of ocurring inside the system. Computational Fluid Dynamics as a simulation software permits acquiring a extra approached view of the fuid circulation and transport mechanisms in supercritical packed mattress gear, although the decision of continuity, momentum, mass and power balances across the advanced geometry of the research circumstances. In this e book, CFD is used for fixing fluid circulation and warmth and mass switch phenomena in packed beds with supercritical solvents, creating a modeling technique relevant to the design of heterogeneous response and extration gear.