A method is proposed for the integrated use of conformal gridsand rectangular grids.

提出一種融合曲線坐標和直角坐標的區(qū)域網(wǎng)格劃分方法1级黄色免费片。

A new method for the generation of curvilinear grid has been proposed. Some curvilinear grid generation examples show that satisfactory grids can be generated for simple-connected regions and connected- regions with complex boundary by using the proposed adjusting factors.

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Combined with CAD software development of grids,the design method of bolt-sphere joint is put forward based on geometry restriction and intensity restriction. The geomitry dimension of each component is determined firstly based on bolt diameter and contexture, then, maximal pull and stress of diversitied bolt are given after intensity restriction of all components is taken into acount.

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The discrete velocities are connected by Delaunay grids to form referring region, and the error vectors in the discrete data can be distinguished, corrected and interposed by continuity principle of flow.

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The grids can be densified locally where the flow is complicated for the sharp change of water depth.(5) 2-D hydrodynamic equations in the generalized curvilinear coordinates have been derived with the contravariant velocities as main variables. The new equations keep the original styles and physical meanings. Based on the water depth correction method, the 2-D flow numerical model has been established and validated by the measured data.

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By the case of skewed cavity flow with 30-degree angle, the convergence performance of SIMPLE/SIMPLEC algorithm was analyzed on unstructured grids and the influence of accepting or rejecting non-orthogonal terms was compared.

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The problems of point - line - plane - volume; the facts of square - circle - triangle; the mysteries of central - peripheral - frontal - oblique - concave - convex; the right angle and perpendicular; of scale and position; the interest in post- lintel, wall-slab, vertical-horizontal; the arguments of two-dimensional and three-dimensional space; the extent of a limited field; the meaning of implied extension; the meaning of plan, of section, of spatial expansion - spatial contraction - spatial compression - spatial tension; the direction of regulating lines, of grids; the relationships of figure to ground, or number to proportion, of measurement to scale, of symmetry to asymmetry, of diamond to diagonal; the hidden forces, the ideas of configuration; the static, the dynamic: all these begin to take on the form of a vocabulary.

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The FORTRAN program to generate random convex polyhedron aggregate based on the topology of spherical aggregates and the codes of the meso-scale structured finite element grids of concrete are developed.

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The PSE in the curve coordinate systems are solved by the numerical techniques developed efficiently in this paper. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. The finite-difference of governing equations with fourth-order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations.

對于曲線坐標系下的拋物化穩(wěn)定性方程美女自慰黄色大片，文中發(fā)展了求解的高效數(shù)值方法：引進法向變換国产AV无码中文，使得在臨界層與壁面之間的擾動量變化最快的區(qū)域有更多的法向網(wǎng)格點；導出包含邊界鄰域在內(nèi)的完全四階精度的法向有限差分格式少妇被黑人4p到惨叫欧美人，這對方程精確離散至關(guān)重要亚洲无码精选；采用全局法和局部法相結(jié)合的方法及其新的迭代公式，大大加速收斂并得到更精確的特征值5566在线视频。

The model is investigated from 1 May to 31 August 2005 and has 150and 80 grids in the zonal and meridional directions,respectively,with a grid space of 60km covering the whole China and surroundin...

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