CAREER: A Novel Approach for Large Eddy Simulation on Unstructured Grids Applied to Turbulent Jets in Cross-Flow

职业生涯：一种应用于横流湍流射流的非结构化网格大涡模拟新方法

• 批准号: 0133837
• 负责人: Krishnan Mahesh
• 金额: $ 37.5万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-01-15 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0133837&HistoricalAwards=false
• 关键词: CAREER; Novel; Approach; Large; Eddy

Abstract CTS-0133837K. Mahesh, University of MinnesotaIt is proposed to perform large eddy simulation (LES) of turbulent jets in cross-flow using unstructured grids. The problem is chosen because its applicability to a number of important technical problems such as fuel injectors, V/STOL aircraft, film cooling of turbine blades and etc. Furthermore such a flow cannot be correctly predicted by the current computational scheme of Reynolds-averaged Navier-Stokes equations (RANS). Unstructured grids are chosen to allow mesh points to be localized near the jet boundary and near the wall. The method of computation will be based on a kinetic energy conserving scheme, which was developed by the PI. The results will be compared to existing experimental data. The LES scheme, once fully developed, will be applied to a range of other flows. The education plan involves development of new graduate courses, incorporate research component into both graduate and undergraduate courses, and including undergraduate students in research projects.

摘要 CTS-0133837K。明尼苏达大学的 Mahesh 提出使用非结构化网格对横流中的湍流射流进行大涡模拟（LES）。 选择该问题是因为它适用于许多重要的技术问题，例如燃油喷射器、V/STOL 飞机、涡轮叶片的薄膜冷却等。此外，当前的雷诺平均纳维计算方案无法正确预测这样的流动-斯托克斯方程（RANS）。 选择非结构化网格以允许网格点定位在射流边界附近和壁附近。 计算方法将基于 PI 开发的动能守恒方案。 结果将与现有的实验数据进行比较。 LES 方案一旦完全开发出来，将应用于一系列其他流程。教育计划包括开发新的研究生课程，将研究内容纳入研究生和本科生课程，并让本科生参与研究项目。