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)格生成草久草网，并通過非耦合方式應(yīng)用于噴管的流場(chǎng)計(jì)算中欧美一级黄片小视频；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)格生成亚洲欧洲日产国产动漫，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(wú)關(guān)的數(shù)學(xué)形式淫淫黄色一片，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(lái)確定18岁以上禁止看的污视频在线观看，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)久久一级特黄a级丰满视频日本xxxx，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九九这里有精彩视频，從而保證了流場(chǎng)計(jì)算的準(zhǔn)確性桃色阁AⅤ网站。

orthogonality of lines：行正交性

orthogonality of columns 列正交性 | orthogonality of lines 行正交性 | orthogonality relation 正交關(guān)系