The author takes a practical approach , discussing techniqes you can implement at various stages of development or to a production system , including techniques for database design and layout , database configuration , sql statement design , maintenance , and monitoring 作者联系实践,讨论了在开发的各个不同阶段以及对生产系统可以应用的一些技巧,包括数据库设计和布局、数据库配置、 sql语句设计、维护以及监视等方面的技巧。
Interface capturing method for multi - fluid flow , which smear out the tangential discontinuity , is developed to simulate the compressible flow . the multi - fluid problems can be transformed to a single - fluid to resolve , using the fluid dynamic conservative equations coupled with the interfaces capturing equations , and any of stability and non - oscillation scheme for the whole computational region . the two schemes mentioned above are better 给出的方法具有以下特点:引入界面捕捉方程将切向间断抹平,形式上将多流体计算转化为单一流体计算,数值计算通过解流体动力学和界面捕捉耦合方程组来实现,可以应用的差分格式是任何一种稳定和不产生非物理振荡现象的差分格式,前面提到的两种格式只是其中效果比较好的格式。