为研究气幕防波堤消波性能影响因素，将空气和水组成的两相流体处理为变密度单流体，通过UDF在连续方程中添加质量源项和动量方程中添加动量源项建立了气幕防波堤的数学模型，并将数值模拟结果与试验结果进行对比分析，二者具有较好的一致性，验证了气幕防波堤数学模型建立的合理性。以此为基础，对影响气幕防波堤消波性能的因素如入射波高、管道淹没深度进行了数值模拟计算，并通过分析、比较得出相关结论。这些结论对气幕防波堤的实际工程设计、施工等具有一定参考价值和指导意义。

 A mathematical model of air bubbles breakwater to research the wave dissipating performance is presented in the paper. The model is established based on the assumption that the two-phase fluid of water and air is a variable density fluid. In addition, a mass source term is added to the continuity equation and a momentum source term is added to the momentum equation by the Macro of UDF (User Defined Function). Comparison between the computational results and experimental results illustrates that the mathematical model is reasonable. Other influencing factors such as the incident wave height and the submerged pipe depth are taken into account and the numerical simulation results are analyzed. Conclusions are referential and meaningful for the design and construction of air bubbles breakwater projects.