It was those crazy free-wheelin' fluid dynamic '60's.

60年代流行是自旋流体力学。

If we're studying fluid dynamics, it's the number of practice problems that we've solved.

如果我们在学习流体力学，它指是我们解决练习题数量。

The research is in the Journal of Fluid Mechanics.

这项研究已在《流体力学》杂志上发表。

The findings were presented at the Annual Meeting of the American Physical Society's Division of Fluid Dynamics in Pittsburgh.

这一发现已经出现在匹兹堡美国物理学会流体力学会年度会议上。

And of course, to accomplish this, we also need to be physicists and know the underlying laws of fluid dynamics.

当然，想要制作这种动画，我们还需要具有物理知识，懂得动画背后流体力学原理。

But the sailors didn't account for fluid dynamics.

但水手们没有考虑到流体力学。

Fluid mechanics is the description of the flow of liquids and gasses.

流体力学是描述液体和气体流动学科。

I went into computational astrophysics and magneto hydrodynamics of star formation.

我进算天体物理学和恒星形成磁流体力学领域。

So, I took a class called Fluid Mechanics in college, I believe first semester, second year.

所以，我在大学二年级第一学期上一门叫做流体力学课。

At this point,   the principles defining crowd movement are closer to fluid dynamics than anything else.

此时，定义人群移动原则更接近流体力学而不是其他任何东西。

And so there are a lot of interesting, open problems of physics and fluid dynamics embedded in it.

这其中蕴含很多有趣放性物理和流体力学问题。

Fluid mechanics is notoriously difficult, mostly because motions of tiny things like molecules get really complicated really fast.

流体力学 notoriously 难，主要是因为像分子这样微小东西运动会变得非常复杂非常快。

Using fluid mechanics you can work out how much lift is generated from an aeroplane's wing, or how aerodynamic a car is.

使用流体力学，你可以算出飞机机翼产生升力有多大，或者一辆车空气动力学性能如何。

[Derek] For fluid mechanics, I always expect that you have to keep the Reynolds number the same as in the real world phenomena.

- [Derek] 对于流体力学，我总是希望你必须保持雷诺数与现实世界现象相同。

We were doing flame research almost every day and then a lot of fluid research to see what's going on with fluid dynamics up in zero g.

我们几乎每天都要做火焰研究，我们还会做大量流体研究，以发现零重力环境下流体力学状况。

One might say he could see birds and flight if you look at his drawings of birds, or if you look at his drawings of water and hydrodynamics.

你看他画鸟、水或是流体力学，就会觉得那些是真。

So the work that we do is combining fluid mechanics with problems that are relevant in health and epidemiology to understand better how pathogens are transmitted.

所以我们所做工作是将流体力学与健康和流行病学相关问题结合起来，以便更好地理解病原体是如何传播。

A wing airfoil or something, shape of some kind, and you run computational fluid dynamics, you get, as a result, the drag and lift and all that stuff, right?

一个翼型截面或者某种形状，然后你运行算流体力学，得到结果就是阻力、升力等等这些东西，对吧？

Today, I'm going to tell you a story about one of nature's most extraordinary engineers that pushes the limits of fluid mechanics and bioengineering and arguably solves their No.

今天，我将向您讲述一个关于自然界最杰出工程师之一故事，他突破流体力学和生物工程极限，并可以说解决他们第一大难题。

Integral to marine engineering is an understanding of fluid mechanics, how water moves and how things move through water, as well as watercraft propulsion, the mechanisms used to create thrust to move marine vessels through the water.

海洋工程核心是对流体力学理解，包括水是如何运动， 以及物体如何在水中移动，还包括船舶推进机制， 即用来产生推力使海洋船舶在水中移动机制。