Validation of high-fidelity CFD simulations for rocket injector design

P. Kevin Tucker, Suresh Menon, Joseph C. Oefelein, Vigor Yang, Charles L. Merkle

研究成果: Conference contribution

85 引文 斯高帕斯(Scopus)

摘要

Computational fluid dynamics (CFD) has the potential to improve the historical rocket injector design process by evaluating the sensitivity of performance and injector-driven thermal environments to the details of the injector geometry and key operational parameters. Methodical verification and validation efforts on a range of coaxial injector elements have shown the current production CFD capability must be improved in order to quantitatively impact the injector design process. This paper documents the status of a focused effort to compare and understand the predictive capabilities and computational requirements of a range of CFD methodologies on a set of single element injector model problems. The steady Reynolds-Average Navier-Stokes (RANS), unsteady Reynolds-Average Navier-Stokes (URANS) and three different approaches using the Large Eddy Simulation (LES) technique were used to simulate the initial model problem, a single element coaxial injector using gaseous oxygen and gaseous hydrogen propellants. While one high-fidelity LES result matches the experimental combustion chamber wall heat flux very well, there is no monotonic convergence to the data with increasing computational tool fidelity. Systematic evaluation of key flow field regions such as the flame zone, the head end recirculation zone and the downstream near wall zone has shed significant, though as of yet incomplete, light on the complex, underlying causes for the performance level of each technique.

原文English
主出版物標題44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
出版狀態Published - 2008
事件44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit - Hartford, CT, United States
持續時間: 2008 7月 212008 7月 23

出版系列

名字44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

Conference

Conference44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
國家/地區United States
城市Hartford, CT
期間08-07-2108-07-23

All Science Journal Classification (ASJC) codes

  • 航空工程
  • 控制與系統工程
  • 空間與行星科學
  • 一般能源
  • 電氣與電子工程
  • 機械工業

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