Simulation Analysis of Indoor Air Distribution in Existing Natatorium Based on Natural Ventilation
In order to provide design references for improving indoor natural ventilation and creating a healthy indoor air environment,the natural ventilation of existing swimming pools,the influencing factors of air flow distribution were analyzed in existing swimming pools.The swimming pool in Shenyang Jianzhu University campus taken as an example,various influencing factors of air distribution were simulated by Airpak software.The simulation results show that under the condition of the natural ventilation,indoor air flow rate and orientation can be improved by changing the parameters of side windows and adding skylights.The optimal parameters are a side window incident wind angle of 150°,an increase in opening area of 12.42％,a ratio of inlet and outlet areas of 1:2,high positions of the inlet and relative outlet,low positions of adjacent outlet,and the addition of two sets of skylights with an area of 5％.With the optimal parameters,the maximum wind speed in the seating area increases from 0.16 m/s to 0.91 m/s,and the maximum wind speed in the swimming pool area increases from 0.22 m/s to 0.47 m/s.The cross ventilation can be avoided by a certain angle between incident wind and the air inlet;the ratio of side window area to the air inlet and outlet area should not be too large or too small;the side window air inlet should not be set at a lower position;overall wind speed of the space in large space buildings can be increased by installing skylights.
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