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采用计算流体动力学（ＣＦＤ）方法对气液同轴离心式喷嘴冷态液雾两相流场进行了数值模拟，并且与试验结果进行了比较。为了比较，计算中采用的入口边界条件和液滴质量平均直径（ＭＭＤ）及其分布规律都是由试验确定的。研究了气液喷注压降对喷雾流动过程和流强分布的影响规律。结果表明，数值模型和计算程序能较好地模拟气液同轴离心式喷嘴两相喷雾流动过程，喷雾的存在对流场流型有很大的影响。
The CFD method was used to simulate the two-phase liquid-mist flow in a gas-liquid coaxial centrifugal nozzle. The results were compared with the experimental results. For comparison, the inlet boundary conditions and droplet mass mean diameter (MMD) used in the calculations and their distribution are experimentally determined. The influence of gas-liquid jet pressure drop on spray process and flow distribution was studied. The results show that the numerical model and calculation program can well simulate the two-phase spray flow in a gas-liquid coaxial centrifugal nozzle. The presence of spray has a great influence on the flow field.