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热对流现象在自然界和生产生活中普遍存在，比如：在自然界中引起天气、气候变化的大气环流、海洋环流，引起大陆板块漂移的地幔对流，决定地磁场产生和变化的外地核对流等；在日常生活中的烧开水以及室内供暖；在工业生产中影响晶体生长和金属制备过程中的对流、核反应堆内部的对流、天然气运输存储过程中可能会引起安全隐患的热对流以及液态金属电池上层液态金属中产生的热对流等等。上面提到的很多热对流现象比如大气对流、海洋对...
北京理工大学宇航学院于剑桥教授
北京理工大学宇航学院 于剑桥 教授 行器总体设计 飞行力学与控制
2020/3/11
于剑桥，教授。1999年7月------2004年7月，北京理工大学飞行器工程系，讲师。2004年7月------2011年7月，北京理工大学宇航学院，副教授。2011年7月------至今，北京理工大学宇航学院，教授。主要研究领域：1. 飞行器总体设计；2. 飞行力学与控制。
2019年6月15日，2019年中国飞行力学学术年会在中南大学召开。会议由由中国宇航学会空气动力与飞行力学专业委员会主办，中国航天科工集团第三总体设计部复杂系统控制与智能协同技术重点实验室和中南大学航空航天学院联合承办。中南大学党委副书记、纪委书记伍海泉到会并致辞。中国宇航学会空气动力与飞行力学专业委员会薛林副主任、航天科工三院第三总体设计部程进主任、中南大学航空航天学院罗世彬院长分别代表主办和承...
针对重装空投过程的飞机运动系统，考虑气动数据的测量和计算误差等不确定性，提出了带有自适应函数近似的反步滑模控制方法。首先将系统的复杂非线性不确定性分解为不确定参数向量和已知非线性矩阵，降低了控制器的设计难度，在此基础上，设计自适应算法近似不确定参数向量，并将自适应结果补偿到反步滑模控制器中，解决了滑模切换增益的选取依赖于系统不确定性边界的问题。理论分析表明，该方法能够保证飞机速度和俯仰角的跟踪误差...
西北工业大学2018年硕士研究生招生初试飞行器飞行力学考试大纲。
刘宇，南方科技大学力学与航空航天系博士生导师，副教授，博士生导师。研究方向：气动声学与低噪声飞行器；多孔材料声学应用；热声学；声学测试。发表多篇代表性的文章。
The Atmospheric Flight Mechanics Conference provides a forum for presentation and discussion of all technical areas related to atmospheric flight, bringing together experts from industry, government, ...
Theoretical Background for Aerodynamic Shape Optimization
Theoretical Background Aerodynamic Shape Optimization
2015/7/3
This is the first of three lectures prepared by the authors for the von Karman Institute that deal with the subject of aerodynamic shape optimization. In this lecture we introduce some theoretic...
A Systematic Study on the Impact of Dimensionality for a Two-Dimensional Aerodynamic Optimization Model Problem
Systematic Study Impact Dimensionality Two-Dimensional Aerodynamic Optimization Model Problem
2015/7/3
A model problem, based on the NACA0012 airfoil, is studied. The thickness distribution of the symmetric NACA0012 airfoil is optimally approximated with a 4th-order Bezier curve. This best-fit ap...
Enhancement of a Class of Adjoint Design Methods via Optimization of Parameters
Enhancement Adjoint Design Methods Optimization Parameters
2015/7/3
INCE the adjoint method was introduced to aerodynamic shape optimization in 1980s [1,2], this method has become a popular choice for design problems involving fluid flow and has been succe...
A Pilot Project in Preparation of an Aerodynamic Optimization Workshop with Lessons Learned
Pilot Project Preparation Aerodynamic Optimization Workshop Lessons Learned
2015/7/2
This paper is an addendum to a recent publication on a Comparative Study of 3D Wing Drag Minimization by Different Optimization Techniques; with a focus on a path forward towards the development of a ...
Comparative Study of 3D Wing Drag Minimization by Different Optimization Techniques
3D Wing Drag Minimization Diff erent Optimization Techniques
2015/7/2
The main goal of this paper is to document a comparative study of different CFD based optimization techniques applied to the so lution of a 3D wing drag minimization problem.
One-shot pseudo-time method for aerodynamic shape optimization using the Navier–Stokes equations
aerodynamic shape optimization simultaneous pseudo-time stepping Navier–Stokes equations
2015/7/2
This paper presents a numerical method for aerodynamic shape optimization problems in compressible viscous flow. It is based on simultaneous pseudo-time stepping in which stationary states are o...
Aerodynamic Shape Optimization Part II:Sample Applications
Aerodynamic Shape Optimization Sample Applications
2015/7/2
This is the second of two lectures prepared by the authors for the von Karman Institute that deal with the subject of aerodynamic shape optimization.
Aerodynamic Shape Optimization Part I: Theoretical Background
Aerodynamic Shape Optimization Theoretical Background
2015/7/2
This is the first of two lectures prepared by the authors for the von Karman Institute that deal with the subject of aerodynamic shape optimization.