SBIR Phase II: Statistical Absorption Tomography for Turbulent Flows

SBIR 第二阶段：湍流统计吸收断层扫描

• 批准号: 0077512
• 负责人: Yudaya Sivathanu
• 金额: $ 40万
• 依托单位: EN'URGA INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-15 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0077512&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Statistical; Absorption

This Small Business Innovation Research Phase II project involves the development of a commercial optical patternator, based on Statistical Absorption Tomography. The mathematical deconvolution procedure that forms the basis for optical patternation of turbulent flows was developed and evaluated during the Phase I research. Local absorptances, resolved to less than 1/10th of the integral length scale were obtained in a turbulent spray, using the deconvolution algorithm, in conjunction with an optical patternator, suited for constant temperature, axisymmetric flows. During the Phase II, three research issues that affect the commercialization of the optical patternator will be addressed. The three issues that will be addressed during the Phase II research are: (1) obtaining local transmittances in turbulent flows with temperature gradients, (2) obtaining spatially resolved mass flux in turbulent sprays, and (3) obtaining patternation factors for turbulent flows issuing from non-axisymmetric nozzles.Two broad areas of commercial applications for the optical patternator are for obtaining pattern factors in commercial nozzles and for monitoring smoke stack emissions. The immediate market for the patternator is as an on-line quality control instrument for spray nozzle manufacturers. The estimated annual market size is approximately 150 million dollars.

这个小型企业创新研究阶段项目涉及基于统计吸收层析成像的商业光学模式器的开发。 在I期研究中开发和评估了构成湍流光学流光模式基础的数学反卷积程序。在湍流喷雾剂中，使用反卷积算法与光学模式器结合使用，在湍流喷雾剂中获得了整体长度尺度的小于1/10的局部吸收，并适合恒定温度，轴对称流。在第二阶段，将解决影响光学模式商商业化的三个研究问题。在第二阶段研究期间将要解决的三个问题是：（1）在具有温度梯度的湍流中获得局部透射率，（2）在湍流喷雾剂中获得空间分辨的质量通量，以及（3）获得非轴对称性喷嘴的非轴向烟雾的湍流的模式因素，以获取商业模式的范围内，这是商用模式的范围。排放。 模式器的直接市场是用于喷嘴制造商的在线质量控制工具。 估计的年度市场规模约为1.5亿美元。