CFD Simulation of Multi-Outdoor Unit Configuration Design for a Building

Abstract

Abstract In this work, we investigate a numerical analysis of outdoor unit (ODU) configuration design by a three-dimensional steady Reynolds-averaged Navier–Stokes computational fluid dynamic simulation. The model was conducted from an actual building design with 10 floors and 5 ODUs each. The numerical results were used to trace back the ODUs in which the insufficient heat reject may happen. The velocity, temperature and pressure distribution were also analyzed. The importance of avoiding air recirculation around the OUDs is presented. Finally, by evaluating the airflow, this approach can significantly reduce the designing fault and help designers determine the ideal position of OUDs.