| 1. | Research and simulation for thermo drying mechanism of spray drying process 喷雾干燥过程的热干燥机理研究及其仿真 |
| 2. | Numerical simulation of spray drying process for producing ceramic microsphere 喷雾干燥制备陶瓷微球过程的数值模拟 |
| 3. | Coupled heat and mass transfer during spray drying process for highly wet porous materials 高初始含湿多孔介质喷雾干燥过程的热质耦合传递 |
| 4. | In addition to the feed , from top to bottom out of artificial materials , spray drying process all automatically 除进料出料人工上下外,喷涂干燥过程全部自动进行。 |
| 5. | The particle deposition which was observed in the simulation results and verified by the experiment and the comparison of the air experimental data with simulation data showed that the cfd model is a feasible way to simulate the spray drying process 试验观察证实了模拟揭示的脉动燃烧喷雾干燥过程的粘壁现象。实验与模拟结果比较表明cfd模型能够比较精确地模拟脉动燃烧喷雾干燥过程。 |
| 6. | ( 2 ) the explicit simulating process for the pulse combustion spray drying process in this project , both the gas - phase equations and particle - phase equations were integrated in the computational cell using up - wild scheme to obtain the finite difference equations . the gas - phase equations are solved using the simpler algorithm and multiple iterations have been made based on a two - way coupling ( legaml algorithm ) ( 2 )进行了模型的求解本文详细论述了该类数学模型的具体求解过程,包括模拟区域的确定和非结构化网格的划分、边界条件的选择、微分方程的控制容积离散方法、代数方程组的simpler解法以及两相流方程的legami算法。 |
| 7. | ( 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。 |
| 8. | ( 4 ) the influence of pulsation frequency on the drying process two special cases , in which the selected pulsation frequencies were 0 h / , and 83 h / respectively , were simulated and their simulation results indicated that the pulsating frequency of gas stream could improve the intensities of the heat and mass transfer during a pulse combustion spray drying process ( 4 )揭示了气流脉动对干燥过程的影响本文模拟脉动频率为83hz的脉动气流和非脉动气流的两种干燥过程,比较两种干燥过程的颗粒蒸发速率和湿含量变化。模拟结果表明气流脉动对喷雾干燥过程有一定增强作用。 |