AI 中文总结
针对二维非局部守恒律系统问题,提出三阶有限体积中心加权本质无振荡格式,利用守恒变量的CWENO重构提供可全域求值多项式,还能通过限制器保持最大值原理及解的正性。
AI 中文摘要
我们提出了一种用于二维空间中非局部守恒律系统的三阶有限体积中心加权本质无振荡(CWENO)格式。对守恒变量的CWENO重构提供了可在整个域中求值的多项式,这在逼近非局部项时具有优势。此外,该方法可以通过一个保持最大值原理特别是解的正性的限制器进行增强。
英文摘要
We present a third-order finite volume central WENO scheme for systems of nonlocal conservation laws in two spatial dimensions. The CWENO reconstruction of the conservative variable provides polynomials that can be evaluated in the entire domain, which is of advantage when approximating the nonlocal terms. Moreover, this method can be augmented with a limiter that preserves the maximum-principle and especially positivity of the solution.