基于对过热液体内气泡生长的一维数值模型的研究，根据气泡表面的热边界层内温度分布的定性分析，构建了一个简化的气泡生长模型．分别利用过热水中气泡生长的试验数据和二甲醚（DME）一维气泡生长模型的计算数据对模型的有效性进行了验证，结果表明，简化的气泡生长模型不仅保持了一维气泡生长模型的准确性，还大大降低了计算成本．利用该模型对二甲醚在过热条件下的气泡生长过程进行了数值模拟，结果表明，在表面张力控制阶段，气泡生长主要受表面张力的影响，在传热控制阶段，气泡生长主要受热扩散系数的影响，而在过渡阶段，气泡生长则同时受表面张力和热扩散系数的影响．%A simplified model for bubble growth was developed according to qualitative analysis of tem- perature profile in the thermal boundary layer of the vapor bubble. The model is based on the study of one- dimensional bubble growth model under the superheated conditions. The model is validated by the experi- mental data of vapor bubble growth in the superheated water and the numerical solution of dimethyl ether （DME） vapor bubble growth using the one-dimensional bubble growth model respectively. Compari- son shows that the model gives good accuracy and reduced computational cost than those of one- dimensional bubble growth model. Using the model, the DME bubble growth is simulated under the su- perheated conditions. The result shows that surface tension plays an important role in the controlled do- main of surface tension for bubble growth, and heat transfer controlled domain of bubble growth is con- trolled by thermal diffusivity while in the transition domain both surface tension and thermal diffusivity influence the bubble growth.
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