ddt (rho U) + div (rho U U) – laplacian (mu U) = – grad (p)
Bizarre geometric shapes that appear at the centre of swirling vortices in planetary atmospheres might be explained by a simple experiment with a bucket of water. (from Nature Newsblog) When the speed of the bucket of water is high enough, Continue reading Geometric whirlpools revealed
Today, I decide to program CFD. One year has gone, I haven’t well understand CFD, but only know how to use CFD codes, i. e. STAR-CD, FLUENT. Send article as PDF
Six days of Prime week of national day have pasted. I understand a little of Tensor. I have read the book for several times. Send article as PDF
James G. Simmonds. A Brief on Tensor Analysis. New York: Springer-Verlag. 1982 In our image, tensor analysis is difficult. Some books wrote it as doctrine, which are very dull and not easy to understand. But this book wrote it very Continue reading A good text for Tensor Analysis
连续介质力学是近代物理学中的一个重要分支，它是以统一的观点来研究连续介质在外部作用下变形和运动规律的一门学科，是流体力学、粘弹性力学、塑性力学等众多力学的重要理论基础。 连续介质力学的基本方程有三类： (1) 关于物体变形和运动的几何学描述，它可具有任意要求的精度。 (2) 适用于一切连续介质的物理基本定律，如质量守恒定律、动量守恒定律等以及热力学定律。 (3) 描述材料力学性质的宏观本构关系。 以上三类基本方程，连同相应的初始条件和边界条件，构成数学物理方程的初、边值问题的完整提法。 Send article as PDF