三维气流数值仿真中悬浮边界面处理技术的研究

Research on Numerical Simulation for Suspending Boundary Plane in Airstream Distribution

气流组织是空调房间内空气的分布、流动形式,主要反映在气流的温度、湿度、气流速度和清洁度等指标,是否符合行业标准规定的空调房间的要求。气流组织可以通过数值计算理论、计算机仿真技术给予实现。以一个典型的变风量中央空调房间为研究基础,以该房间内的送、回风口边界面为研究实例,通过分析、研究悬浮在房间立体内的送、回风口的数值仿真方法,运用实体造型技术,设计出在房间立体与悬浮边界面之间的拓扑关系,使两者成为一体。然后该处理技术经过数值仿真实例的验证证明是合理的、可行的。

Airstream distribution means that how the air in an air-condition room distributes and flows. It is represented by some guidelines such as the temperature, humidity, flowing speed and cleanliness of the airflow in an air-condition room. These guidelines are checked by an industry standard. Airstream distribution can be realized by numerical calculation theory and computer simulation technique. How to simulate suspending blowing inlets and a vent outlet in a air-condition room was researched. The inlets and outlet are important boundary plane in the airflow numerical simulation. So the geometry computing technique, and design some topology relationship between the suspending boundary plane and the three dimension calculation region were utilized. As a result, the numerical simulation for suspending boundary plane can be solved. At last the handling method for suspending boundary plane is proved to be reasonable and feasible by a practical example of numerical simulation for the airstream distribution.