This pioneering text provides an excellent introduction to CFD at the senior level in aerospace and mechanical engineering, and to some extent, chemical and civil engineering. It can also serve as a one-semester introductory course at the beginning graduate level, as a useful precursor to a more serious study of CFD in advanced books. It is presented in a very readable, informa...
This pioneering text provides an excellent introduction to CFD at the senior level in aerospace and mechanical engineering, and to some extent, chemical and civil engineering. It can also serve as a one-semester introductory course at the beginning graduate level, as a useful precursor to a more serious study of CFD in advanced books. It is presented in a very readable, informal, enjoyable style.
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)
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0 有用 BopngMa 2015-06-19 20:34:50
CFD入门读物，以差分方法为基础讲了CFD编程实现中的最经典、简单的算法，值得一读。