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标签:航空航天
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空气动力学基础
《空气动力学基础》共分为四个部分,分别涵盖了流体力学基本原理、无黏不可压缩流动、无黏可压缩流动和黏性流动,以及与实际应用或设计相关的内容。第1部分(第1、第2章)介绍空气动力学的研究意义、应用范围,基本数学知识,流动的描述方法及流体力学基本方程。第2部分(第3~第6章)介绍伯努利方程,不可压缩无旋流控制方程,流动叠加原理和基本流动,有限展长机翼的升力线理论,一般三维流动特征等。第3部分(第7~第14章)介绍高速流动的热力学理论,能量方程,正激波及斜激波理论,普朗特-迈耶膨胀波理论,激波-膨胀波理论的应用,准一维等熵管流理论,速度势方程及其线性化理论,压缩性修正理论,临界马赫数、阻力发散马赫数概念及定义,超声速流动线性化理论及其应用。非线性超声速流的数值解,高超声速流动基础理论,牛顿理论等。第4部分(第15~第20章)介绍黏性流动的基本理论及控制方程,库埃特流动和泊肃叶流动,边界层特性,层流边界层和湍流边界层流动,湍流模型等。 本双语版教材适合相关专业院校师生使用,并可作为专业技术人员的参考用书。 -
The Wright Brothers
Two-time winner of the Pulitzer Prize David McCullough tells the dramatic story-behind-the-story about the courageous brothers who taught the world how to fly: Wilbur and Orville Wright. On a winter day in 1903, in the Outer Banks of North Carolina, two unknown brothers from Ohio changed history. But it would take the world some time to believe what had happened: the age of flight had begun, with the first heavier-than-air, powered machine carrying a pilot. Who were these men and how was it that they achieved what they did? David McCullough, two-time winner of the Pulitzer Prize, tells the surprising, profoundly American story of Wilbur and Orville Wright. Far more than a couple of unschooled Dayton bicycle mechanics who happened to hit on success, they were men of exceptional courage and determination, and of far-ranging intellectual interests and ceaseless curiosity, much of which they attributed to their upbringing. The house they lived in had no electricity or indoor plumbing, but there were books aplenty, supplied mainly by their preacher father, and they never stopped reading. When they worked together, no problem seemed to be insurmountable. Wilbur was unquestionably a genius. Orville had such mechanical ingenuity as few had ever seen. That they had no more than a public high school education, little money and no contacts in high places, never stopped them in their “mission” to take to the air. Nothing did, not even the self-evident reality that every time they took off in one of their contrivances, they risked being killed. In this thrilling book, master historian David McCullough draws on the immense riches of the Wright Papers, including private diaries, notebooks, scrapbooks, and more than a thousand letters from private family correspondence to tell the human side of the Wright Brothers’ story, including the little-known contributions of their sister, Katharine, without whom things might well have gone differently for them.
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