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Numerical simulation and experimental validation of the ventilation system performance in a heated room
Air Quality, Atmosphere & Health ( IF 5.1 ) Pub Date : 2020-09-04 , DOI: 10.1007/s11869-020-00923-6
Sondes Ifa 1 , Zied Driss 1
Affiliation  

The time spent by the occupant indoor the building is significant; therefore, the central objective of the major research was the evaluation of the thermal sensation for the existing people. This study examines the numerical simulation in a room containing a manikin sitting in front of a computer. The computational fluid dynamics (CFD) tools were considered using ANSYS Fluent 16.2 software. This software exploits the finite volume method that is based on the resolution of the Navier-Stokes equations. The distribution of the temperature, velocity, static pressure, turbulent kinetic energy, turbulent viscosity, and turbulent dissipation is tested in different planes and different directions to characterize the airflow indoor a heated room. Equally, the thermal comfort is examined by calculating the predicted mean vote (PMV). The comparison between the numerical results and the experimental data founded from the literature prove that the supply of airflow was affected by the presence of the heat sources and the thermal climate is considered as a slightly hot. The use of the adequate meshes is in a good agreement with the experimental data and confirms the validity of the numerical approach.

中文翻译:

采暖室内通风系统性能的数值模拟与实验验证

居住者在建筑物内花费的时间很长;因此,主要研究的中心目标是评估现有人的热感觉。这项研究检查了一个房间里的数值模拟,房间里有一个坐在电脑前的人体模型。计算流体动力学 (CFD) 工具考虑使用 ANSYS Fluent 16.2 软件。该软件采用基于 Navier-Stokes 方程分辨率的有限体积法。在不同平面和不同方向测试温度、速度、静压、湍动能、湍流粘度和湍流耗散的分布,以表征加热室内的气流。同样,通过计算预测平均投票 (PMV) 来检查热舒适性。数值结果与文献中建立的实验数据的比较证明,气流的供应受到热源存在的影响,热气候被认为是微热的。使用足够的网格与实验数据非常吻合,并证实了数值方法的有效性。
更新日期:2020-09-04
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