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Developing a TVD scheme relies upon _________(a) the flux limiter(b) the coefficients(c) the PDE(d) the convection termsThe question was posed to me in unit test.I want to ask this question from High Resolution Schemes topic in portion High Resolution Schemes of Computational Fluid Dynamics

Answer»

Right OPTION is (a) the flux limiter

To explain: A TVD scheme should not be completely upwind or downwind. So, to DEVELOP a TVD scheme, an approach is USED in which a PORTION of the anti-diffusive flux is added to the upwind scheme. This flux is limited by a flux limiter function. To find the best flux limiter is the work in developing a TVD scheme.



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