This paper also presents the experimental results of effects of the blade tip clearance and the airfoil shape on the stall flutter boundary.
此外还给出了两种叶尖间隙和两种叶型对失速颤振影响的实验结果。
The main reason of extended stall margin was that about 75% axial chord of the tip flow field has been improved.
②第一套方案对离心叶轮大叶片75%左右轴向弦长前尖部流场的改善是失速裕度提高的主要原因;
Many are now converging to the notion of "stall speed" (1-2 percent annual growth), with a highly concerning increase in the probability that the US could tip into recession.
许多分析师现在认为,美国经济已降至“停滞速度”(按年率计算在1 - 2%之间),陷入经济衰退的风险大幅提高。
Many are now converging to the notion of "stall speed" (1-2 percent annual growth), with a highly concerning increase in the probability that the US could tip into recession.
许多分析师现在认为,美国经济已降至“停滞速度”(按年率计算在1 - 2%之间),陷入经济衰退的风险大幅提高。
应用推荐