抄録
A mathematical model of three-dimensional gas flow in packed beds has been developed to be applied for the analysis of gas flow in packed bed reactor, blast furnace and so on.
Basic equation of the motion of fluid in packed beds was derived on the basis of the mechanics of continua.
In case of gas flow in iso-tropic packed beds, the equation of motion is simplified to the vectorial form of the ERGUN'S equation. Equation of pressure, derived from the locally linearized equation of motion and equation of continuity, is computed by the finite element method with three-dimensional iso-parametric second order elements of 20 nodes. Gas velocity is calculated from pressure gradient in each element.
Computed results were compared with the analytical solution and the experimental results. Good agreement among them confirms the adequateness of this mathematical model.
