Measurement of velocity field and combustion dynamics in a high-pressure aerospace gas turbine combustor using laser and optical diagnostics

使用激光和光学诊断测量高压航空航天燃气轮机燃烧室中的速度场和燃烧动力学

• 批准号: 477740-2014
• 负责人: Steinberg, Adam
• 金额: $ 7.21万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=579048
• 关键词: Measurement; velocity; field; combustion; dynamics

The proposed Collaborative Research & Development (CRD) project is a joint effort between the University of Toronto Institute for Aerospace Studies (UTIAS) Experimental Engines (E2) Laboratory, GE Aviation Canada, and the GE Global Research Center (GRC), in which advanced laser- and optical-based measurement techniques will be applied to determine the flow and heat release dynamics occurring inside of a next-generation aeronautical gas turbine combustor. Experiments will be performed both at the E2 lab and at a unique test facility at GE GRC. This represents the direct application of measurement techniques developed in the E2 Lab to a practical research combustor operating at flight-relevant conditions. Gas turbine combustors are very difficult to design using physically-grounded scientific principles; considerable heuristic knowledge and extensive testing are required in combustor development, even for evolutionary improvements. This largely is due to a lack of experimental information on how design choices affect the velocity field, heat release field, and their interaction. This experiment therefore will produce critical data needed to produce innovative combustor designs and to validate the results of engineering computational fluid dynamics (CFD) simulations. Furthermore, the project will generate improvements to the measurement and post-processing techniques themselves, increasing the fidelity of subsequent research programs. The overarching practical goal of this research is to reduce emissions from aviation engines. The combustion architecture to be investigated is specifically designed to produce extremely low NOx and carbonaceous particulate matter emissions. These substances are the most harmful pollutants produced by combustion engines, being responsible for vast majority of sub-2.5 µm particulates (PM2.5). By enabling novel combustion systems that drastically reduce such particulates, the proposed research will significantly improve the air quality in the vicinity of airports. Such improvements will be particularly beneficial to large airports, airports located in city centres, and airports in sensitive northern ecosystems.

拟议的合作研究与开发（CRD）项目是多伦多大学航空航天研究所（UTIAS）实验发动机（E2）实验室、通用电气加拿大航空和通用电气全球研究中心（GRC）之间的联合努力，其中先进的激光和光学测量技术将被应用于确定下一个-代航空燃气涡轮机燃烧室。实验将在E2实验室和GE GRC的独特测试设施进行。这代表了E2实验室开发的测量技术在飞行相关条件下运行的实际研究燃烧室中的直接应用。 燃气涡轮机燃烧室很难使用物理基础的科学原理进行设计;在燃烧室开发中需要相当多的启发式知识和广泛的试验，即使是为了进行渐进式改进。这在很大程度上是由于缺乏关于设计选择如何影响速度场、热释放场及其相互作用的实验信息。因此，该实验将产生产生创新燃烧室设计所需的关键数据，并验证工程计算流体动力学（CFD）模拟的结果。此外，该项目将改进测量和后处理技术本身，提高后续研究计划的保真度。 这项研究的首要实际目标是减少航空发动机的排放。待研究的燃烧结构专门设计用于产生极低的NOx和含碳颗粒物排放。这些物质是内燃机产生的最有害的污染物，是造成绝大多数2.5微米以下颗粒物（PM2.5）的原因。通过启用能够大幅减少此类颗粒物的新型燃烧系统，拟议的研究将显着改善机场附近的空气质量。这种改进将特别有利于大型机场、位于市中心的机场和位于敏感的北方生态系统的机场。