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在隧道通风研究中,有些参数不能用分析法求得,需要进行模型试验,量测大量数据,进行数据整理分析,找出变化规律或经验公式;有些参数虽然可得到理论解,但在推导方程时,往往做些假设以使问题简化,假设是否合乎实际,亦有待通过试验验证。所以模型试验是通风研究中的一个重要手段。以往,我们在研究洞口风道式通风中,模型是按相似准则制作的,尽量使模型与原型达到动力相似,运动相似和几何相似。这样的模型往往长达数十米甚至近百米,模型用材料多,加工期长,试验场地大,使研究
In the tunnel ventilation research, some parameters can not be calculated by analytical method, which requires model test, measurement of large amounts of data, data analysis, find the law of variation or empirical formula; although some parameters can be theoretical solution, but in the derivation of equations Often, assumptions are made to simplify the issue. Assumptions are realistic and have yet to be validated through tests. Therefore, the model test is an important means of ventilation research. In the past, we studied the tunnel duct ventilation, the model is made according to similar criteria, try to make the model and prototype to achieve similar power, similar to the movement and geometric similarity. Such models are often up to tens of meters or even nearly a hundred meters, the model materials, long processing period, large test sites, so that research