spatial derivative造句

例句与造句

1. 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。
2. 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。
3. 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。
4. 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。
5. It's difficult to find spatial derivative in a sentence. 用spatial derivative造句挺难的