Numerical Analysis of Air-Water Two-Phase Flow Across a steaggered Tube Bundle Using an Incompressible Two-Fluid Model

摘要

The air-water two-phase flow across a staggered tube bundle at a pitch-to-diameter ratio of 1.4 is anlayzed by an incompresisble two-fluid model using the upstream finite element method proposed in a piro study. The Reynolds number, based on the tube diameter and the volumetric velocity of the liquid phase at the tube gap, is 41 000, and the volumetric fraction of the gas phase upstream of the bundle α)g0 ranges form 0 to 0.15.