Dryden model is usually used in studying the response of flight vehicle to atmospheric turbulence.For a modern flight simulator,it is necessary to generate random winds ( in Dryden model or sometimesothers) with a dig...Dryden model is usually used in studying the response of flight vehicle to atmospheric turbulence.For a modern flight simulator,it is necessary to generate random winds ( in Dryden model or sometimesothers) with a digital computer.In this paper,a theoretically strict new method to meet this purpose isproposed.By this method,we can acquire a three-dimensional atmospheric turbulence which containsthree components of wind velocity and three components of wind velocity gradient.The reliability of thismethod is checked by comparing the obtained autocorrelation value with the theoretical one.A numericalexample has shown a satisfactory result.Finally,some proposals about how to use this mathematicalmodel in flight simulator are given.展开更多
在金融危机的社会背景下,大多数设计师都在做出妥协向更实穿的方向"进军",而Comme des Garcons却剑走偏锋,依旧以其独有的个性风格展示了新一季的设计。麻豆们顶着棉花糖般的彩发出场,这样的惊艳造型在Comme des Garcons秀场...在金融危机的社会背景下,大多数设计师都在做出妥协向更实穿的方向"进军",而Comme des Garcons却剑走偏锋,依旧以其独有的个性风格展示了新一季的设计。麻豆们顶着棉花糖般的彩发出场,这样的惊艳造型在Comme des Garcons秀场上已不足为奇,令人瞪大眼睛的当然还是"奇形怪状"的衣服,带着些建筑感又有些抽象效果。不规则的布料拼接出连身裙、夹克外套、新颖特别的西装等款式,下身搭配则是紧身裤、男友式的肥腿裤和摘牌式的波点短裤起到陪衬上衣的作用。展开更多
文摘Dryden model is usually used in studying the response of flight vehicle to atmospheric turbulence.For a modern flight simulator,it is necessary to generate random winds ( in Dryden model or sometimesothers) with a digital computer.In this paper,a theoretically strict new method to meet this purpose isproposed.By this method,we can acquire a three-dimensional atmospheric turbulence which containsthree components of wind velocity and three components of wind velocity gradient.The reliability of thismethod is checked by comparing the obtained autocorrelation value with the theoretical one.A numericalexample has shown a satisfactory result.Finally,some proposals about how to use this mathematicalmodel in flight simulator are given.
文摘在金融危机的社会背景下,大多数设计师都在做出妥协向更实穿的方向"进军",而Comme des Garcons却剑走偏锋,依旧以其独有的个性风格展示了新一季的设计。麻豆们顶着棉花糖般的彩发出场,这样的惊艳造型在Comme des Garcons秀场上已不足为奇,令人瞪大眼睛的当然还是"奇形怪状"的衣服,带着些建筑感又有些抽象效果。不规则的布料拼接出连身裙、夹克外套、新颖特别的西装等款式,下身搭配则是紧身裤、男友式的肥腿裤和摘牌式的波点短裤起到陪衬上衣的作用。
