Computational Fluid Dynamics-Based Simulation of Airflow Organization Performance in Petrochemical Workshop Lounge

Abstract

In order to ensure thermal comfort of petrochemical workshop lounge, airflow organization performance of it is studied based CFD. Influence of the numerical value of wind speed on indoor cleanliness is obtained by establishing two-dimensional CAD building diagram, setting working conditions with different flow rates, analyzing cloud images in Fluent software (temperature cloud, pressure cloud, velocity cloud, turbulent kinetic energy cloud), velocity vector diagram, particle concentration diagram at different times. That is, when natural ventilation only needs to consider the indoor air cleanliness, the ventilation condition of inlet wind speed of about 0.5 m/s is a more reasonable design parameter. At the same time, the concentrated location of indoor air cleanliness is obtained. In the corner away from the doors and windows, the air freshness decreases, the human body feels uncomfortable, through the reasonable arrangement of indoor furniture, is conducive to improving the thermal comfort of the human body; At the same time, the relationship between the inlet wind speed and turbulent kinetic energy is obtained, and the intensity of fluid movement can be known by analyzing the turbulent kinetic energy cloud map, and then the influence of indoor air distribution uniformity on human thermal comfort can be obtained. At the same time, by controlling the single variable method, that is, the position of the window opening, the area of the window opening and the wind direction projection Angle are unchanged, only the wind speed at the entrance is changed, and the eddy relationship between the wind speed and the building is obtained by analyzing the trace diagram at different times. Research results can provide theoretical basis for amend airflow organization.