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
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.
