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correct the velocity
相关语句
  修正速度
     P equation is used to update the existing pressure and density fields, and the P equation is used to correct the velocity field to ensure continuity of mass.
     p方程用来更新现有压力场和密度场,p方程用来修正速度场以保证质量守恒。
短句来源
     Based on the SIMPLE, we present here an effective improved method, called secondary pressure correction, which can be used well to resolve the problem in SIMPLE that the solution of pressure-correction equation can be used effectively to correct the velocity but ineffectively or not very well to correct the pressure.
     本文在SIMPLE方法的基础上提出了一种有效的改进措施——二次压力修正算法,较好地解决了SIMPLE算法中压力修正方程只能较好地修正速度而不能很好地修正压力的问题。
短句来源
  “correct the velocity”译为未确定词的双语例句
     Objective To determine if the amplitude of the Doppler frequency shift signals produced by cardiac motion represents the local cardiac motion velocity,and then,to use the results to correct the velocity errors of the blood flow velocity in the Doppler spectra.
     目的 观察多普勒血流速度频谱上的心脏运动性多普勒频移信号的幅度是否能真正代表心脏局部运动的速度 ,进而为纠正血流速度频谱中血流速度测量误差提供方法。
短句来源
  相似匹配句对
     Which is correct?
     到底哪一种说法合理?
短句来源
     Correct Selection of the Motor Velocity Modulation Scheme
     电动机调速方案的正确选择
短句来源
     Wind Velocity Calibrator's Principals and Define Method of Correct Parameter
     风速校验器原理、误差及校准参数的确定
短句来源
     the correct strategy;
     正确的战略;
短句来源
     THE CORRECT APPLICATION OF THE INTEGRAL WIND VELOCITY IN THE ATMOSPHERIC STABILITY CLASSFICATION
     大气稳定度分类中定时观测整数风资料的正确应用法
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  correct the velocity
We then use the vector field decomposition to correct the velocity field so that it satisfies the constraint.
      
When images from different offsets are not lined up, a residual moveout can be used to correct the velocity model.
      
Finally, we AMR for low Mach number reacting flow 11 correct the velocity field to satisfy a divergence constraint on the composite grid system.
      


Based on the SIMPLE, we present here an effective improved method, called secondary pressure correction, which can be used well to resolve the problem in SIMPLE that the solution of pressure-correction equation can be used effectively to correct the velocity but ineffectively or not very well to correct the pressure. 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....

Based on the SIMPLE, we present here an effective improved method, called secondary pressure correction, which can be used well to resolve the problem in SIMPLE that the solution of pressure-correction equation can be used effectively to correct the velocity but ineffectively or not very well to correct the pressure. 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.

本文在SIMPLE方法的基础上提出了一种有效的改进措施——二次压力修正算法,较好地解决了SIMPLE算法中压力修正方程只能较好地修正速度而不能很好地修正压力的问题。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。

Objective To determine if the amplitude of the Doppler frequency shift signals produced by cardiac motion represents the local cardiac motion velocity,and then,to use the results to correct the velocity errors of the blood flow velocity in the Doppler spectra.Methods The maximal velocity of the aortic valve annulus was measured through M-mode echocardiography and its relation with the peak velocity of the corresponding Doppler frequency shift signals produced by cardiac motion was observed.Results...

Objective To determine if the amplitude of the Doppler frequency shift signals produced by cardiac motion represents the local cardiac motion velocity,and then,to use the results to correct the velocity errors of the blood flow velocity in the Doppler spectra.Methods The maximal velocity of the aortic valve annulus was measured through M-mode echocardiography and its relation with the peak velocity of the corresponding Doppler frequency shift signals produced by cardiac motion was observed.Results The velocities obtained with these two methods were significantly related (r= 0.99).Conclusions Based on this and our previous studies,the errors of the blood flow velocities of the Doppler spectra may be corrected by adding the peak velocity of the Doppler signals produced by cardiac motion to the related maximal flow velocity in Doppler spectrum of blood flow velocity.

目的 观察多普勒血流速度频谱上的心脏运动性多普勒频移信号的幅度是否能真正代表心脏局部运动的速度 ,进而为纠正血流速度频谱中血流速度测量误差提供方法。方法 以心尖部为探测点 ,主动脉瓣环处M型超声心动图不同相位的最大运动速度为标准 ,观察主动脉瓣口多普勒血流速度频谱中相应相位的心脏运动性多普勒频移信号的峰值速度是否与M型测得者相关。结果 心脏运动性多普勒频谱信号不同相位的峰值运动速度与M型超声心动图所测得的相应相位的最大运动速度相关非常显著 ,r=0 .99。结论 根据本研究和体外模拟实验研究 ,血液通过各瓣口的真实峰值血流速度为血流速度频谱显示的最大血流速度与心脏运动性多普勒频移信号的峰值速度之和。

In this paper, two-dimensional (axial symmetry) supersonic plasma jets are studied by numerical simulation. The work is for the case of turbulent flow on the hypothesis of LTE (Local Thermodynamic Equilibrium), and temperature-dependent plasma properties and viscous dissipation are involved. The Naveir-Stocks equation is adopted as governing equation of plasma jets and ek-equation for turbulent. The simulation method is based on SIMPLER algorithm. By incorporating density correction into the continuity equation,...

In this paper, two-dimensional (axial symmetry) supersonic plasma jets are studied by numerical simulation. The work is for the case of turbulent flow on the hypothesis of LTE (Local Thermodynamic Equilibrium), and temperature-dependent plasma properties and viscous dissipation are involved. The Naveir-Stocks equation is adopted as governing equation of plasma jets and ek-equation for turbulent. The simulation method is based on SIMPLER algorithm. By incorporating density correction into the continuity equation, two new pressure correction, P equation and Pequations are obtained for compressible flow. P equation is used to update the existing pressure and density fields, and the P equation is used to correct the velocity field to ensure continuity of mass. These results are expected to be useful in further study of supersonic plasma jet under normal pressure.

数值模拟研究了在二维轴对称情形下,超音速等离子体射流喷射于常压环境中的湍流流动,其中考虑了等离子体物性随温度的大幅度变化,还考虑了粘性耗散。等离子体射流的数学模型采用了Navier-Stockes方程,对湍流的模拟采用了ek-方程。计算方法以SIMPLER方法为基础,引入密度修正,得到适用于可压缩流体的p方程和p方程。p方程用来更新现有压力场和密度场,p方程用来修正速度场以保证质量守恒。计算结果对常压下超音速等离子体射流的进一步研究有重要的参考价值

 
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