DesignBuilder Verification and Validation for Indoor Natural Ventilation

Abstract

Computer simulation has been used for simulating physical process and various researches have been conducted based on the computational fluid dynamics. Evaluating the accuracy of the simulation results is a significant point for users and developers. Verification and validation are the primary methods for responding to this issue. This paper examines the verification and validation of DesignBuilder as a simulation program for researchers and building designers. The focus of the study is on two main parameters of air velocity and temperature in natural cross-ventilation. Validation is examined comparing measurement data and computational fluid dynamics results. The comparison of the results indicates DesignBuilder can predict indoor temperature and air velocity with good accuracy and it can be used by researchers and designers to evaluate natural crossventilation.