Development of Numerical Methods for the Simulation of Compressible Droplet Dynamics under Extreme Ambient Conditions (A02)

极端环境条件下可压缩液滴动力学模拟数值方法的发展（A02）

• 批准号: 164921665
• 金额: --
• 依托单位: Institut für Aerodynamik und Gasdynamik (IAG)
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/164921665?language=en
• 关键词: Development; Numerical; Methods; Simulation; Compressible

The focus in FP 3 is the simulation of the experiments with respect to droplet evaporation and the jet break up based on the developed compressible flow solver FS3D.comp. An important research topic remains the consistent thermodynamic modelling of the phase interface. Based on a ghost-fluid method the phase interface is kept sharp and coupled by an approximate solution of the multiphase Riemann problem. Information from the microscale as evaporation rate is incorporated into the local macroscopic solution at the interface. The numerical simulation should support the analysis of the experimental results and contribute to the identification of the fluid and gas phase.

fp3的重点是基于开发的可压缩流动求解器fsdd .comp对液滴蒸发和射流破碎的实验进行模拟。一个重要的研究课题是相界面的一致热力学建模。基于鬼流体方法，通过多相黎曼问题的近似解来保持相界面的清晰和耦合。来自微观尺度的信息，如蒸发速率，被纳入界面处的局部宏观溶液中。数值模拟应支持对实验结果的分析，并有助于流体和气相的识别。