There is a subtle difference between the integral and differential forms of the governing flow equations which is best noted at this stage. The integral form of the equations allows for the presence of discontinuities inside the fixed control volume(fixed in space); there is no mathematical reason to assume otherwise. However, the differential form of the governing equations assumes the flow properties are differentiable, hense continuous. This is particulary evident when we use the devergence theorem to derive the differential form from the integral form--the divergence theorem assumes mathematical continuity. This is a strong argument for the integral form of the equations to be considered more fundermental than the differential form. This consideration becomes of particular importance w... (查看原文)
This motivation is driven by more than just trying to minimize the truncation error with closely spaced points; it is also a matter of simply having enough grid points to properly capture the physics of the flow(in those regions of the flow where large gradients in the flow-field properties exist). (查看原文)
![[英] 安德森](https://img9.doubanio.com/view/personage/m/public/9e49111873d80c729068c03fd4a5e964.jpg)
安德森 作者
4 有用 、 2020-03-13 08:10:28
音乐，艺术，科学，无数的无数，都以其独自有限的影响力，创造了一个一个小小的圈子，几个小小人类的命运共同体，而能把全人类都划进大圈子的却是病毒。我们真的需要人类命运共同体吗？可是睡大通铺的感觉也很快乐呀。
1 有用 Douglas_Chan 2015-11-09 15:36:03
边看边忘，我不是纯作计算的。
0 有用 建极殿大学士 2022-12-17 10:14:57 陕西
太清楚太平易近人了，国内写的都什么垃圾，人家一本计算流体的书把流体力学所有的控制方程推导的明明白白
2 有用 M·贺六浑 2014-04-29 14:40:57
看完了。这书的正确读法是当床头书消遣地看。启蒙可以，离实战不远，但是离现实太远了哈哈。//20180428二刷
0 有用 我为的是我的心 2021-04-23 17:03:37
写的非常易懂好读，非常适合CFD入门。流体系研一学生。
0 有用 何以解忧耶 2024-05-28 13:41:02 河南
抓头但好看
0 有用 今天周五 2023-08-19 09:12:24 四川
太经典了
0 有用 Griffin 2023-04-27 14:38:57 上海
开蒙之作
0 有用 建极殿大学士 2022-12-17 10:14:57 陕西
太清楚太平易近人了，国内写的都什么垃圾，人家一本计算流体的书把流体力学所有的控制方程推导的明明白白
0 有用 面瘫脸抗老 2022-09-12 01:40:23 上海
公式的物理意义