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

湍流对二氧化钛颗粒气溶胶合成中成核和凝结速率的影响：数值模拟研究

• 批准号: 9417527
• 负责人: Lance Collins
• 金额: $ 16.66万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-01 至 1999-05-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9417527&HistoricalAwards=false
• 关键词: Effect; Turbulence; Nucleation; Coagulation; Rates

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. ***

摘要CTS-9417527 L.柯林斯 提出了一种直接数值模拟（DNS）方法，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使用两相流系统的微观结构方面，将获得成核速率、颗粒碰撞、生长速率和最终颗粒尺寸分布的定量预测。 计算结果将与在杜邦公司进行的实验进行比较。 该方法如果成功，将为理解和预测湍流气溶胶反应器开辟一条新的途径，并将其应用于先进材料。 ***