On the basis of the establishment of air movement equations in a confined ventilated chicken house, the governing equation, represented by the stream function and potential function, is deduced.
在建立密闭式鸡舍机械通风系统气流运动方程的基础上，推导了由流函数和势函数表示的气流运动控制方程。
Then basing on the free-vortex equation, potential equation and stream function of flow are achieved by mathematical analyze, and solving these equations gives flow fields.
从自由涡运动方程出发，推导出管内流场的势函数和流函数方程，获得了管内流场的数学分析解；
The equations of continuity and quasi irrotationality are transformed into the potential stream function coordinates. Then a Laplace equation can be deduced for an aerodynamic parameter "q".
将改写后的无旋条件与连续方程联立求解，可在计算面上将叶型设计问题用标准拉普拉斯方程来表示。
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