Based on theoretical analysis of the trapeziform labyrinth screw pump,the commercial software FLUENT is applied to simulate the 3D flow of clean water inside the pump.

• 结合梯形迷宫螺旋泵的流动特点,在相应的假设条件基础上建立流动模型、简化计算方程组,并给出具体的边界条件。