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首页> 外文期刊>Journal of Heat Transfer >Numerical Study of Single Bubble Dynamics During Flow Boiling
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Numerical Study of Single Bubble Dynamics During Flow Boiling

机译：沸腾过程中单泡动力学的数值研究

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Three-dimensional numerical simulation of single bubble dynamics during nucleate flow boiling is performed in this work. The range of bulk liquid velocities investigated is from 0.076 to 0.23 m/s. The surface orientations at earth normal gravity are varied from an upward facing horizontal surface to vertical through 30, 45, and 60 deg. The gravity levels on an upward facing horizontal surface are varied from 1.0g_e to 0.0001 g_e. Continuity, momentum, and energy equations are solved by finite difference method and the level set method is used to capture the liquid-vapor interface. Heat transfer within the liquid micro layer is included in this model. The numerical results have been compared with data from experiments. The results show that the bulk flow velocity, heater surface orientation, and gravity levels influence the bubble dynamics.
机译：在这项工作中进行了单个气泡动力学在核流沸腾过程中的三维数值模拟。研究的整体液体速度范围为0.076至0.23 m / s。地球法向重力时的表面方向从朝上的水平面到垂直方向变化30、45和60度。朝上的水平面上的重力水平从1.0g_e到0.0001 g_e。通过有限差分法求解连续性，动量和能量方程，并使用水平集方法捕获液-气界面。该模型包括液体微层内的热传递。数值结果已与实验数据进行了比较。结果表明，整体流速，加热器表面方向和重力水平会影响气泡动力学。

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