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基于室内零方程湍流模型,利用水平贴附射流原理,改变小微空间的送风口位置,进行三维数值模拟,分析不同情况下的温度场和速度场分布;利用不均匀系数、通风效率和空气龄值指标对气流组织效果进行评价,得出最佳风口布置位置.通过计算,发现对于小空间,送风口位置的变化对投入能量利用系数的影响不大,对不均匀系数影响较大.
Based on the indoor zero-equation turbulence model, the principle of horizontal affixing jet was used to change the position of air outlet in small and micro spaces. Three-dimensional numerical simulation was carried out to analyze the temperature field and velocity field distribution in different situations. By using non-uniform coefficient, ventilation efficiency and air age Value index to evaluate the effect of air flow organization, and get the location of the best tuyere arrangement.Through the calculation, it is found that for a small space, the location of the tuyere outlet has little effect on the input energy utilization coefficient and has a greater impact on the non-uniform coefficient.