The main objective of this study is to analyze the effect of the solid deposits downstream of the injection hole on the film cooling efficiency by highlighting the impact of several geometrical and physical parameters, such as the blowing ratio, deposit position, and deposit height, by using the ANSYS CFX software. Several configurations are tested by changing the deposit position and deposit height. The turbulence is approximated by the shear stress transport (SST) model. The film cooling effectiveness distributions are presented for different blowing ratios. The numerical results are compared with available experimental data, and good agreement is noted.

中文翻译：

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沉积高度和位置对薄膜冷却效率影响的数值研究

本研究的主要目的是通过突出几个几何和物理参数（如吹气比、沉积位置和沉积高度）的影响来分析注入孔下游的固体沉积物对薄膜冷却效率的影响。使用 ANSYS CFX 软件。通过改变存款位置和存款高度来测试几种配置。湍流由剪切应力传输 (SST) 模型近似。针对不同的吹气比呈现了薄膜冷却效率分布。数值结果与可用的实验数据进行了比较，并注意到良好的一致性。