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首页> 外文期刊>JSME International Journal. Series B, Fluids and Thermal Engineering >Accurate and Robust Fluid Analysis Using Cubic Interpolation with Volume/Area Coordinates (CIVA) Method on Unstructured Grids
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Accurate and Robust Fluid Analysis Using Cubic Interpolation with Volume/Area Coordinates (CIVA) Method on Unstructured Grids

机译:非结构体网格上使用体积/面积坐标(CIVA)三次插值法进行的精确而鲁棒的流体分析

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This paper concerns the cubic interpolation with volume/area coordinates (CIVA) method, which is an extension of the cubic interpolation profile (CIP) to a triangular or tetrahedral mesh system, implemented in an unstructured and fixed (Eulerian) mesh-based finite-volume solver. First, we briefly explain the accuracy of and the results of stability analysis by CIVA. Then, to demonstrate the accuracy and robustness of the algorithm, we solve two-dimensional benchmark problems of incompressible lid-driven recirculating flow in square and triangular cavities. In addition, a two-dimensional vortex-driven flow is solved in order to analyze the conservative property of CIVA. Finally, an example of an industrial application of CIVA method is described. These numerical experiments demonstrate the high capability of the method and that it is sufficiently robust for complex industrial applications.
机译:本文涉及具有体积/面积坐标的三次插值(CIVA)方法,这是三次插值轮廓(CIP)对三角形或四面体网格系统的扩展,在非结构化和固定(欧拉式)基于网格的有限网格中实现体积求解器。首先,我们简要说明CIVA的准确性和稳定性分析的结果。然后,为了证明该算法的准确性和鲁棒性,我们解决了方形腔和三角形腔中不可压缩盖驱动的再循环流的二维基准问题。另外,求解二维涡流,以分析CIVA的保守性。最后,描述了CIVA方法的工业应用实例。这些数值实验证明了该方法的高能力,并且对于复杂的工业应用具有足够的鲁棒性。

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