船用燃机新型排气红外抑制系统的数值计算与实验研究

Numerical Calculation and Experimental Study of a Naval Gas Turbine Exhaust lnfrared Signature Suppression Device

本文以多喷口引射加多层气膜冷却的第三代船用燃气轮机排气系统红外抑制装置为例，发展并完成了模拟该装置气流流场及温度场的数值计算方法。在分析模型实测数据的基础上，提出了修正模化比影响的方法。

By taking the exhaust system infrared signature supppresion device of a third generation naval gas turbine with multi jet eduction and multi layer film cooling as an example developed and completed is a numerical calculation method for simulating the air flow and temperature fields of the said suppression device. On the basis of analysing the measured data of the model the authors have proposed a method for correcting the effect of modelling scale, thus providing a theoretical basis for nanlysing the infrared signature suppression device of the exhaust system.