The quantification of mitral stenosis by using a new color Doppler flow convergence method was evaluated, and compared with two -dimensional echocardiography, pressure half- time and combined method.
本研究应用彩色多普勒血流会聚新方法评价了对二尖瓣狭窄的定量诊断，并与二维超声、压力降半时间及综合法测量二尖瓣狭窄进行了比较。
The method of mass flux correction is introduced with success in order to accelerate convergence in iteration of velocity and pressure calculation.
为了加速速度和压力迭代的收敛性成功地引入了质量流量校正法。
Numerical calculations for sudden expansion pipe flow have shown that the secondary pressure correction method can clearly accelerate convergence, improve accuracy and save C. P. U time.
对突扩管道流动的数值表明，该方法可以明显地加快收敛速度，提高计算精度和节省计算机时。
Furthermore, a reduction correction method is built to promote convergence to boundary condition of exit pressure.
此外，在收敛到零阶出口压力边界条件时，构造了较易收敛的减缩修正方法。
The lag distance of abutment pressure behind working face increases, but the convergence coefficient of vertical stress doesn't change obviously with the increase of mining height.
分层开采与综放开采工作面滞后支承压力变化规律是，随着采高的增大，工作面滞后支承力的距离加大，垂直应力集中系数差别不大。
Numerical calculations for sudden expansion pipe flow have shown that the secondary pressure correction method can clearly accelerate convergence, improve ac...
对突扩管道流动的数值表明，该方法可以明显地加快收敛速度，提高计算精度和节省计算机时。
Furthermore, a pressure correction procedure and the Gauss-Seidel centrally symmetric iteration algorithm are used to enhance the convergence rate.
计算所用的网格是具有交错网格主要特点的修正非交错网格，并采用一种压力修正法和G - S中心对称迭代法加速收敛。
The more convergence Angle increases, the greater dynamic pressure, static pressure and total pressure rise.
当合流角增加时，动压、静压、全压均会增大，且角度越大增幅越明显。
The more convergence Angle increases, the greater dynamic pressure, static pressure and total pressure rise.
当合流角增加时，动压、静压、全压均会增大，且角度越大增幅越明显。
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