| 1. | Particle velocity pdf particles trajectory model of two - phase flow and numerical simulating
颗粒速度概率密度分布轨道模型及数值模拟 |
| 2. | Far from drawing conclusions from sole empirical studies or rule of thumb , this algorithm is derived from particle trajectory study and convergence analysis
本文分析了粒子群中独立粒子的运动轨迹，以及整个粒子群系统的稳定性，在此基础之上提出新的参数设置方法。 |
| 3. | Comparison of the particle trajectory and separation efficiency between the generally used vqs system and this new system with an inner component showed the performance of the latter better than the former
两种结构形式的旋流快分器分离效率的计算对比说明：在旋流头处加入一个内构件，是很有价值的改进。 |
| 4. | In the last part , fluent is used to calculate the trajectory of particles , which have different sizes . then some information about flow field has been obtained besides the particle trajectories
此外，对试验数据进行回归，得出了分离效率和分离器阻力的经验回归公式，为方形卧式分离器的设计提供了设计经验公式。 |
| 5. | Using three - dimensional particle trajectories dispersed droplet diameter at the outlet of screw element during compounding in a co - rotating intermeshing twin - screw extruder was computed
摘要用物料三维流动路径结合分散模型计算了螺纹元件出口处分散相液滴的直径，分析了螺杆转速、挤出机产量和液滴初始直径对末端分散相液滴直径的影响。 |
| 6. | ( 1 ) the cfd model for the pulse combustion spray drying process . the computational fluid dynamics ( cfd ) based on the two - phase flow theory was employed in this paper , which used the standard k - e model and the particle trajectory model to simulate the gas - particle flow in the drying chamber . the momentum , heat and mass transfer regarding both gaseous and particulate phases during the spray drying inside the drying chamber was also revealed
为解决这一难题，本文利用气体一颗粒两相流理论和计算流体力学( cfd )技术，建立了更符合实际喷雾干燥过程的数学模型即喷雾干燥的cfd模型，并进行了脉动燃烧喷雾干燥过程模拟，其主要内容如下： ( 1 )建立了脉动燃烧喷雾干燥的cfd模型该数学模型建立在气体一颗粒两相流基础之上，用标准k -模型预测干燥室内的气体湍流运动过程，颗粒轨道模型追踪干燥室内颗粒群的运动轨迹，热质传递模型描述空气和液滴的热质传递过程。 |
| 7. | Abstract : the review presents the recent status and achievements on numerical simulation studies of solid rocket motor chamber internal flow field from three aspects , including numerical analysis of internal flow during the ignition transient period , fin - slot flows in solid rocket motor , and calculation of particle trajectories and slag deposition . it also puts forward the focal points of research on numerical simulation of solid rocket motor chamber internal flow field in our country
文摘:从三个方面介绍了固体火箭发动机燃烧室内流场数值模拟研究的现状及取得的成果，包括发动机点火传播及起动过程的数值研究，翼环槽内流场研究和粒子轨迹、熔渣计算，并对我国开展此项研究的重点提出了建议。 |
| 8. | The simulated profiles of flow field , temperature and humidity of the air phase , as well as particulate phase , in the drying chamber were showed . the simulation also showed that a large - scale vortex was observed in upper part of the drying chamber because of the unstable process of flow field and particle trajectories
通过模型的求解，得到了干燥室内气体运动状态，气体温度、湿度分布，颗粒运动轨迹，颗粒沿运动轨迹质量变化，颗粒沿运动轨迹的温度变化等各种动力学和热力学参数分布信息。 |
| 9. | The current field in the centrifugal pump , which includes entrance pipe , impeller , volute and outlet pipe , is simulated and analyzed in this paper , and the solid particle trajectory is computed by using lagrange method under the flow field . some conclusions about the particle trajectory are given and validated by the engineering practices
本文研究了渣浆泵内吸入口段、叶轮区、蜗壳以及扩散管延长段的清水流场的流动状况，并且在此基础上用拉格朗日法模拟了固体单颗粒的运动轨迹，最后得到规律性的结论，与实际工程相吻合。 |
