ddt (rho U) + div (rho U U) – laplacian (mu U) = – grad (p)
Linear Equation Systems are most concerned in modern scientific and engineering computation, because most problems can be described by (partial) differential equations which could be discretized to a system of algebraic equations which can be solved on a computer. There Continue reading Solutions of Linear Equation Systems Used in OpenFOAM
I have not speak English for a long time so that I was nervous when I speak it using Internet chatting tool, UC. There are some hot chatting room which people can speak English, encourage each other to get over Continue reading Long time No Speaking English
From the “5.12” Wenchuan Earthquake, there has been a heated discussion in China about whether human can predict earthquake or not. Some people think human can investigate animal’s abnormal phenomena, such as sudden migration, to predict earthquake happening, while others Continue reading Can Human Predict Earthquake?
In OpenFOAM, We can simulate fluid dynamics with general meshes, such as tetrahedral, hexhedral, and with polyhedral mesh which workes well in OpenFOAM. Generally, A tetrahedral mesh in a geometric model should be done, which should be converted to the Continue reading How to convert tetrahedral mesh to polyhedral mesh
The desk and chair were shaking a little heavily when I was tutoring a middle school student at about 16:23. After a while, about a minute, it stopped. My wife called me and told me that The magnitude of this Continue reading Powerful Aftershock in Qingchuan, Sichuan
2008 年 5 月 12 日 14 时 28 分，在四川省汶川县境内发生里氏 8.0 级地震，几乎整个中国都感觉到了这一地震。截至22日10时，四川汶川地震已造成51151人遇难，288431人受伤，累计失踪29328人。 从地震发生不久，社会各界就开始捐款，伴随着捐款，还要求政府机构、慈善组织公布捐款的详单，捐款使用的详情。在社会上引起很大的反响，同时在网络上呼声也很高。 终于，昨天民政部在其官方网站向社会公布财政汇缴专户捐款账单详情，而且民政部网站上也发布了这一消息：民政部开始公布“汶川大地震”财政汇缴专户捐赠详单。同时，在民政部-财政汇缴专户捐款账清单（不断更新中）可以查询相关的捐款详情。 同时，我在民政部网站上了发现了中华慈善总会在 5 月 21 日（落款时间是 5 月 21 日）已经开始公布其接受银行汇款捐赠者详单和运抵灾区物资详单。 此时，中国红十字会总会发言人王平就接收和使用募集款物有关事宜接受了记者采访：中国红十字总会宣传处长回应质疑:善款全部用于灾区，称中国红十字会总会共向地震灾区调拨了１８５１０顶价值２１７５万元人民币的帐篷。但是，还需要公布捐款、物的清单及使用详情（已经公布部分中国红十字会总会接受捐赠款物名单（一））。公开，透明，应该是中国红十字会的一项重要事情，同时，也是其他慈善组织的重要事情，也是对捐赠人负责。 Send article as PDF