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为验证FINE/Turbo软件对高压涡轮流热耦合求解问题的准确性,将Mark II型燃气涡轮叶片作为分析对象,选用不同的湍流模型和转捩模型进行数值模拟,得到叶片表面压力分布,B2B面的压力、温度、马赫数和湍流动能分布,叶片内部温度分布以及叶片表面传热系数分布,并与试验数据进行比较.结果表明:对于流热耦合问题,FINE/Turbo软件可得到准确的求解结果;转捩问题对叶片表面温度和导热系数的计算精度影响很大;湍流模型的选择对叶片表面压力分布影响很小,对温度和导热系数分布影响很大.
In order to verify the accuracy of the FINE / Turbo software in solving the problem of thermal coupling of high pressure turbine flow, Mark II gas turbine blade was taken as the analysis object. Different turbulence models and transition models were selected for numerical simulation. Pressure, temperature, Mach number and turbulent kinetic energy distribution, leaf internal temperature distribution and leaf surface heat transfer coefficient distribution, and compared with the experimental data.The results show that FINE / Turbo software can get accurate solution for the flow-heat coupling problem . The transition problem has a great influence on the calculation accuracy of the blade surface temperature and thermal conductivity. The choice of turbulence model has little effect on the pressure distribution on the blade surface and greatly affects the distribution of temperature and thermal conductivity.