In addition, the mean response time of temperature is much longer than the flow time scale of a typical turbulent combustion field, which demonstrates the importance of unsteadiness in the numerical simulation of turbulent combustion s. 另外,温度的平均响应时间远大于一个典型湍流燃烧场的流动时间尺度,说明火焰面非稳态效应对于湍流燃烧数值模拟有重要意义。
Compared with the solutions suggested by the researchers, the developed algorithm can search better solution on make-span and mean flow time, and can receive higher machine utilization and work utilization. 通过与国内外学者的算法进行比较,本算法获得的生产周期最短,机床利用率和工人利用率都较高,并且在某些情况下,平均流动时间也较短。
The stability analysis of the stratosphere shows that the stationary zonal mean flow is dynamically stable while the time oscillation of the basic flow and its zonal distortion are two significant factors which may destabilize the basic flow. 对平流层的分析表明,平流层定态纬向基流是动力稳定的,而纬向流的振荡分量及非纬向定态扰动则是两个可引起基态失稳的因子。
Get the section mean temperature and the outside wall temperature along the pipe at certain flow rate, and get the changes of the section mean temperature and outside wall temperature against time when the inlet temperature changes. 计算得到某颗粒流量下管内断面平均温度和外管壁温度沿管长的变化以及入口温度发生突变后,管内断面平均温度和外管壁温度随时间的响应关系。
The concentrations of ET in plasma and CSF were determined by radioimmunoassay and the mean velocity of blood flow of the middle cerebral artery ( VMCA) was determined by transcranial color Doppler ultrasound at different time after the embolization. 用放免法测定栓塞后不同时间血浆和脑脊液中ET浓度,用经颅彩色多普勒超声检测大脑中动脉血流速度。
Compared with the solution suggested by foreign researcher, the proposed algorithm can search better solution on mean flow time. 通过与国外学者的算法进行比较,本算法在相同生产周期的情况下,能够获得平均流动时间较少的调度结果。