CAJ | 학술논문

在流体动力式声波发生器簧片哨工作状态下，研究喷射流喷击簧片的流固耦合过程。首先，根据流固耦合分离解法分别建立流体、固体的运动方程，并建立湍流模型。其次，建立仿真模型，并设置边界条件。最后，利用 ANSYS-CFX 双向流固耦合法计算簧片的动态特性：簧片振动的频率、幅值，簧片与水的瞬态耦合，以及簧片周围的流场变化。计算结果表明此簧片哨在工作状态下，其簧片做低幅、低频振动。
재류체동력식성파발생기황편초공작상태하，연구분사류분격황편적류고우합과정。수선，근거류고우합분리해법분별건립류체、고체적운동방정，병건립단류모형。기차，건립방진모형，병설치변계조건。최후，이용 ANSYS-CFX 쌍향류고우합법계산황편적동태특성：황편진동적빈솔、폭치，황편여수적순태우합，이급황편주위적류장변화。계산결과표명차황편초재공작상태하，기황편주저폭、저빈진동。
When the hydrodynamic reed whistIe is in working conditions,research the FSI process of reed.firstIy,estabIished fIuid, soIid equations of motion based on the separation soIution about FSI,and created turbuIence modeI.SecondIy,created nu-mericaI modeI setting the boundary conditions.FinaI y,anaIyzes the dynamic characteristics of the reed by the use of two-way FSI ANSYS -CFX.IncIuding vibrating frequency,ampIitude of reed,transient coupIing by reed and water,and the fIow changed around the reed.The resuIts show that in working condition,the reed do Iow-ampIitude,Iow-frequency vibrations.