Conceptual Reference Database for Building Envelope Research |
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| Essay:BELCAM projecthttp://www.nrc.ca/irc/newsletter/v3no1/belcam_e.htmlhttp://www.npac.syr.edu/REU/reu94/trang/myproposal/subsection3_1_2.html: Numerical solutions of problems in fluid dynamics usually are formulated using one of two methods: the finite-volume and the finite-difference [4]. In the finite-difference approach, a difference equation approximation of the differential equation is solved. When this numerical method is applied, the equation is first transformed from the physical domain to a uniform computational domain, and the differential form of the equation is solved at discrete points. On the other hand, the finite volume approach solves an integral form of equation 2. Instead of solving the equation at discrete points, the equation is solved over ``small'' volumes. The finite-volume approach has two major advantages over the finite-difference approach:
The integral form of the equation can capture discontinuities in the solution. It is more suitable for complex geometry because the solution can be obtained in ``physical space.''
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