In lecture D2 we introduced the position velocity and acceleration vectors and referred them to a fixed cartesian coordinate system. While it is clear that the choice of coordinate system does not affect the final answer, we shall see that, in practical problems, the choice of a specific system may simplify the calculations considerably. In previous lectures, all the vectors at all points in the trajectory were expressed in the

is a vector equation that relates the magnitude and direction of the force vector, to the magnitude and direction of the acceleration vector. In the previous lecture we derived expressions for the acceleration vector expressed in cartesian coordinates. This expressions can now be used in Newton's second law, to produce the equations of motion expressed in cartesian coordinates

In this course we will study Classical Mechanics. Particle motion in Classical Mechanics is governed by Newton's laws and is sometimes referred to as Newtonian Mechanics. These laws are empirical in that they combine observations from nature and some intuitive concepts. Newton's laws of motion are not self evident. For instance, in Aristotelian mechanics before Newton, force was thought to be required in order

ASTP是威尔逊应用科学与技术(Applied Science& Technology Plus)数据库的缩写 ,由美国 ProQuest Information and Learning公司出版该数据库主题涉及范围包括:计算 机科学、工程技术、物理学、电讯、航空航天及交通运输等

《流体动力学》（英文版）lecture 27

《流体动力学》（英文版）lecture 30

《流体动力学》（英文版）lecture 29

《流体动力学》（英文版）lecture 32

Chapter 3 Integral Boundary Layer Equations for Three-Dimensional Flows 3.1 Definitions The three-dimensional integral boundary layer equations derived using a Cartesian coordi- nate system are:

Appendix B Closure for Three-Dimensional Boundary Layer Equations B. 1-2 Coordinate Definitions 1Streamwise Direction 2=Crossflow Direction