CFD Simulation Of Microclimate And Design Strategy Of Multifunction Swimming Hall

Swimming hall is a great sport space with a unique process of building space requirements, requiring a lot of energy in heating and ventilation. High energy consumption increased operating costs, which becomes an obstacle after the game; but the popularity entertaining feature of swimming also provided an opportunity for the sustainable use of swimming hall. So how to maintain a balance of comfort, energy conservation and utilization is a problem which be ignored by designer. Indoor microclimate of swimming hall, as an important factor in the design, has different degrees of contact with comfort, energy consumption,and availability of the building. With the development and application of performance-based analog and digital technology platform, simulation has become an important tool for building design and evaluation. Through simulations, timely feedback on the design can be showed, and the advantages and disadvantages in terms of indoor microenvironment can also be quantified.In this paper, multifunction swimming hall is defined as the research object with the CFD software simulation as research method and Airpak as research platform, integrating HVAC and architectural professional expertise in research. Rsearch was started from utilization problem, taking indoor microclimate parameters of swimming hall as experiment results and thermal comfort and energy efficiency as evaluation criteria.Firstly, a typical study object,which was a 4480 seat standard swimming hall with one diving pool and one swimming pool lining up, was established by comparison and generalization. Then taking the different space arrangements of swimming hall after important competitions as a variable, four experiment model types each of which contained four to twelve experiment models were established. They were basic competition space arrangement, after-competition sports space arrangement, after-competition exhibition space arrangement and after-competition performance space arrangement. By group of the four types indoor environment simulation experiments of single model were conducted. After each experiment, horizontal and vertical plane cut results of temperature, relative humidity, speed, mean age of air, PMV and PPD of the space in Airpak post item were collected and recorded as experiment results. Then optimal solution is determined in aspect of indoor microclimate. Through comprehensive analysis and evaluation of results in aspects of utilization, comfort and energy conservation, Applicable condition of both optimal and non-optimal solutions were discussed. Finally, from comparison and analysis of the experimental results, optimization strategy and its application on the reasonableness of the ascent, the after-game applicability and energy efficiency of swimming hall was discussed combined with actual situation.