Abstract

In an indoor environment, many factors may affect the airflow characteristics and thermal comfort. Hence, a lot of research has been carried out in order to investigate the impact of these factors. The purpose of this study is to determine the effect of supply area, with maintaining the same supply airflow rate, on the airflow characteristics and the indoor thermal comfort for a ventilated box prototype occupied by a thermal manikin. Understanding the behavior of the airflow in a mechanical ventilated box occupied by a thermal manikin is the main objective of this paper. Hence, numerical simulations were carried out using the software ANSYS FLUENT 17.0. According to the obtained results, the inlet velocity has a direct effect on the velocity fields, the temperature, the static pressure and the turbulence characteristics. In addition, the numerical results affirmed that the supply area has a direct impact on indoor thermal comfort.

摘要

在室内环境中，许多因素可能会影响气流特性和热舒适性。因此，为了研究这些因素的影响，已经进行了大量的研究。本研究的目的是确定供热面积在保持相同供风率的情况下对热人体模型所占据的通风箱原型的气流特性和室内热舒适性的影响。了解热人体模型占据的机械通风箱中的气流行为是本文的主要目标。因此，数值模拟是使用软件ANSYS FLUENT 17.0进行的。根据所得结果，入口速度对速度场、温度、静压和湍流特性有直接影响。此外，