An adaptive grid scheme controlling cell area is used to generated grids in the divergent section of symmetric annular nozzle, and the generated grids are used in the flowfield calculation through the uncoupled way. The elliptic equations are used to generate grids in three dimensional regions of FDN divergent section, the source terms used in the equations employ a mathematical form which is independent of the boundary shape and of the boundary grid point distribution, the free parameters contained in the source terms are determined by the two restraint conditions, the intersection angle of transverse grid lines with boundaries and the local curvature of the transverse grid lines at the boundaries, and the interior grid distribution controlled directly by the grid point distribution assigned on the boundaries is realized, it makes the grid more clustering near the nozzle wall. For the generated grids in the whole computational regions have a good smoothness and orthogonality, the accuracy of calculation in the flowfield is ensured.

對(duì)軸對(duì)稱的環(huán)形噴管采用控制網(wǎng)格面積的自適應(yīng)網(wǎng)格方法對(duì)擴(kuò)散段部分進(jìn)行了網(wǎng)格生成，并通過非耦合方式應(yīng)用于噴管的流場計(jì)算中91视频蘑菇；對(duì)強(qiáng)制偏流噴管擴(kuò)散段內(nèi)的三維區(qū)域采用橢圓型方程進(jìn)行網(wǎng)格生成免费一级欧美性大片口咬，方程中的源項(xiàng)采用了與邊界形狀和邊界網(wǎng)格點(diǎn)分布無關(guān)的數(shù)學(xué)形式，源項(xiàng)內(nèi)的自由參數(shù)由橫向網(wǎng)格線與邊界的交角及橫向網(wǎng)格線在邊界處的局部曲率兩個(gè)約束條件來確定亚洲另类网，實(shí)現(xiàn)了由邊界上的網(wǎng)格分布直接控制內(nèi)部的網(wǎng)格點(diǎn)国产精品无码专区，使壁面附近具有較密集的網(wǎng)格，并且在整個(gè)計(jì)算區(qū)域內(nèi)的網(wǎng)格都具有良好的光滑性和正交性可以看理论片的网站，從而保證了流場計(jì)算的準(zhǔn)確性日韩免费一区二区三区高清。

Based on hexahedra vector finite element in ANSYS,a new orthogonal-reinforced hexahedra vector element is created by modifying vector basis functions.Due to orthogonality of sampling nodes and orthogonality of integral simultaneously,the new vector element can strengthen diagonal elements' predominance and quicken speed of solving system question group.

在ANSYS采用的六面體矢量單元的基礎(chǔ)上，對(duì)矢量基函數(shù)作了一些增強(qiáng)正交性的修改免费观看黄色A片级视频，使其同時(shí)具備采樣點(diǎn)正交性和積分正交性毛片免费全部播放无码私人，得到了一種新的正交增強(qiáng)六面體矢量單元；這種新單元能增強(qiáng)系統(tǒng)矩陣的對(duì)角占優(yōu)特性你懂的福利在线，加快系統(tǒng)方程組的求解速度黄色一级大片网站。

Based on the transfinite interpolation theory, an improved algebraic grid generation method is presented in this paper. Our improvements of existing algebraic grid generation method include:(1) orthogonality control, which greatly improves grid orthogonality adapted to viscous flow calculation;(2) weighted average smoothing, which efficiently handles with grid intersection due to concave corner existence;(3) normal vector control, which adjusts grid smoothing near convex corner.

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The results of 3-D numerical modeling of the transversely isotropic media with horizontal symmetry axis and the orthorhombic symmetry media showed that quasi P wave,quasi-SV wave and quasi-SH wave occurred during elastic wave propagation in 3-D anisotropic media. Meanwhile, the special phenomena such as the S wave splitting, the blind zone of S wave splitting and quasi-SV wave-front triplication were clearly observed. In addition, the elastic wave-fronts are spatially changed, and the coupled relations among the quasi-P wave,quasi-SV wave and quasiSH wave in 3-D anisotropic media are very complex.

對(duì)方位各向異性介質(zhì)模型和正交各向異性介質(zhì)模型中彈性波的傳播進(jìn)行的三維數(shù)值模擬結(jié)果表明，彈性波在三維各向異性介質(zhì)中傳播時(shí)存在擬P波国产又爽又黄又湿免费99、擬SV波和擬SH波黑人粗大性爽视频，并出現(xiàn)橫波分裂、橫波分裂盲區(qū)亚洲天堂在线综合、波面三分叉等特殊現(xiàn)象，另外一级黄色网站一，性波場在空間是變化的人人艹在线免费，其擬P波、擬SV波和擬SH波的耦合關(guān)系比較復(fù)雜www.99riav3.c鈥唌。

orthopole：正交極

orthonormalized basis 標(biāo)準(zhǔn)正交化基 | orthopole 正交極 | orthotomy 面正交性

orthotomy：面正交性

orthopole 正交極 | orthotomy 面正交性 | oscillate 振動(dòng)