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spatial derivative中文是什么意思

  • 空间导数,空间微商

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  • Theconvergence towards the weak solution is proved for one-dimensional space with initial and boundaryconditions by using some subtle techniques such as the estimate of spatial derivative, perturbationtheory and weak compactness
    通过使用对空间导数的估计、弱紧性和奇异摄动理论证明了有限元方法的收敛性。
  • Only clouds of points instead of grids are distributed over the computational domain and the spatial derivatives of the considered partial equations are estimated using a least-square curve fit on local clouds of points
    与传统的网格方法不同,无网格方法的核心是用“点云”离散求解区域,并基于当地点云离散结构,引入二次极小曲面逼近空间导数。
  • In the dissertation, the unstructured dynamic mesh technique is investigated . full implicit dual-time temporal derivatives and cell-center finite volume method spatial derivatives are adopted to simulate unsteady flow fields of 2-d airfoil, 3-d wing and wing-body configuration
    在非结构运动网格技术方面,本文发展了一种适用于解决非定常气动力计算的、高效的、鲁棒性较好的非结构运动网格方法。
  • Only clouds of points instead of grids are distributed over the computational domain and the spatial derivatives are estimated using a least-square curve fit on local clouds of points . the paper gives discrete form for euler equations on base of gridless method, and adopts five steps runge-kutta scheme for time-marching . the numerical results have been obtained for the 2-d flows over airfoils or multi-element airfoils using the method presented
    本文首先对无粘euler方程进行无网格离散,并运用显式runge-kutta格式推进求解,成功地数值模拟了二维单段和多段翼型的绕流;在此成功的基础上通过在euler方程的右端加入粘性项,使求解方程变为层流navier?stokes方程,得到了翼型绕流,数值结果显示出粘性的影响。
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Last modified time:Sun, 17 Aug 2025 00:29:56 GMT

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