Effect of Turbulence on Nucleation and Coagulation Rates in the Aerosol Synthesis of Titania Particles: A Numerical Simulation Study

本文提出了一种直接数值模拟方法来分析湍流对二氧化钛颜料颗粒气溶胶形成和凝聚的影响。通过计算相干湍流结构和利用两相流系统的微观结构，可以得到成核速率、颗粒碰撞、生长速率和最终颗粒尺寸分布的定量预测。计算结果将与杜邦公司的实验结果进行比较。如果该方法成功，将为理解和预测湍流气溶胶反应器开辟一条新的途径，并应用于先进材料。***

ABSTRACT CTS-9417527 L. Collins It is proposed a Direct Numerical Simulation (DNS) method to analyze the effect of turbulence on the aerosol formation and coagulation of titanium dioxide pigment particles. Quantitative predictions of the rate of nucleation, particle collisions, growth rates, and the final particle size distribution will be obtained by calculating the coherent turbulent structure and using microstructural aspects of the two-phase flow system. The computational results will be compared to the experiments performed at the DuPont Co. The proposed method, if successful, will open a new approach to understand and predict the turbulent flow aerosol reactors, with application to advance materials. ***