• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Quantitative experimental and model-based imaging of infrared radiation intensity from turbulent reacting flows.
【24h】

Quantitative experimental and model-based imaging of infrared radiation intensity from turbulent reacting flows.

机译：基于湍流反应流的红外辐射强度的定量实验和基于模型的成像。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Radiation transfer in turbulent reacting and non-reacting flows is important in many applications related to combustion, energy, power and propulsion, and atmospheric sciences. Advanced measurements and computations of radiation transfer in turbulent reacting flows have applications in improving energy efficiencies, managing emissions to the environment, and controlling radiation from unwanted fires. Emerging large-scale computations can benefit from the development of highly scalable quantitative visualization methods for volume rendering and displaying three-dimensional time-dependent results in the form of planar images with consideration of time and length scales that vary over orders of magnitude.;Experimental and theoretical methods for quantitatively comparing measured and modeled time-dependent images of the infrared radiation intensity from reacting flows are developed and applied to a range of example problems. Quantitative images of the radiation intensity from bluff body stabilized laminar diffusion flames and turbulent jet diffusion flames are acquired using a high speed infrared camera. Results of the solution to the radiative transfer equation are rendered in the form of planar images using a narrowband radiation model with computed scalar values.;Quantitative comparisons of the measured and modeled images of the radiation intensity from the reacting flows are shown to be useful for prompting improvements in combustion and radiation models and interpreting distributions of gas temperatures, gas species concentrations, and particulate volume fractions. The application of emerging imaging techniques to direct numerical simulation and large eddy simulation results is defining a new field and is one of the novel contributions of this work.
机译：在与燃烧，能量，动力和推进以及大气科学有关的许多应用中，湍流反应流和非反应流中的辐射传递非常重要。湍流反应流中辐射传输的高级测量和计算可用于提高能源效率，管理对环境的排放以及控制有害火势产生的辐射。新兴的大规模计算可受益于高度可伸缩的定量可视化方法的开发，该方法可用于体积渲染并以平面图像的形式显示三维时间相关的结果，并考虑时间和长度比例在数量级上的变化。开发了定量比较来自反应流的红外辐射强度的测量和建模时间相关图像的理论方法，并将其应用于一系列示例问题。使用高速红外热像仪采集来自钝体稳定的层流扩散火焰和湍流射流扩散火焰的辐射强度的定量图像。使用具有计算的标量值的窄带辐射模型，以平面图像的形式呈现辐射传递方程的解的结果。对来自反应流的辐射强度的实测图像和模型图像进行定量比较表明，该方法可用于促进了燃烧和辐射模型的改进，并解释了气体温度，气体种类浓度和颗粒体积分数的分布。新兴的成像技术在直接数值模拟和大涡模拟结果上的应用正在定义一个新的领域，并且是这项工作的新颖贡献之一。

著录项

  • 作者

    Rankin, Brent A.;

  • 作者单位

    Purdue University.;

  • 授予单位 Purdue University.;
  • 学科 Engineering Mechanical.
  • 学位 Ph.D.
  • 年度 2012
  • 页码 264 p.
  • 总页数 264
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号