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中文摘要：
为了考察进气管结构尺寸对旋流冷壁燃烧室性能的影响,采用雷诺应力模型（RSM）对矩形进气管、圆形进气管和三角形进气管的旋流冷壁燃烧室进行了数值模拟。结果表明：综合考虑燃烧效率、总压损失、冷壁效果以及出口温度分布,矩形进气管较圆形与三角形进气管性能更优。矩形进气管入口长宽比对总压损失系数的影响不大,对出口温度分布、燃烧效率影响较大。矩形进气管入口长宽比为0.64时,旋流冷壁室综合性能达到最佳。
英文摘要：
In order to study effect of inlet duct on performance of swirl-cooled combustor chamber,Reynolds stress model（ RSM） was used to carry out simulations of swirl-cooled combustor chamber with different inlet duct structures（ rectangular inlet,circular inlet and triangular inlet）. The results show that considering combustion efficiency,total pressure loss,cooling effect of wall outlet temperature distribution,the performance of rectangular inlet duct is better than circular or triangular inlet duct. Entrance aspect ratio has little effect on total pressure loss coefficient,but has greater impact on outlet temperature distribution and combustion efficiency. Under conditions of this paper,when the aspect ratio of the rectangular inlet duct gets to 0. 64,the comprehensive performance of swirl-cooled combustor reaches optimal.
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