Investigation of Turbulence Closure Models for Challenging Aerodynamic Flows

具有挑战性的空气动力流的湍流闭合模型的研究

• 批准号: 484279-2015
• 负责人: Nadarajah, Sivakumaran
• 金额: $ 1.82万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 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=584221
• 关键词: Investigation; Turbulence; Closure; Models; Challenging

The primary objective of the project is to investigate and resolve MAYA's challenge to simulate complex turbulent aerodynamic flows. To solve this challenge, the task would be to investigate their present shortcomings and then implement, validate, and verify the necessary algorithms for the k-epsilon, Wilcox k-omega, and the Mentor k-omega SST turbulence models within MAYA's Code-base for external aerodynamic flows. MAYA's commercial computational fluid dynamics solvers have a widespread usage over a range of applications including but not limited to electronics cooling, process analysis and automotive heat transfer. However, they have an immediate market need to extend their software for aerodynamic analysis, i.e., computation of lift and drag forces on vehicles and engineering structures. The research-oriented computational fluid dynamics solvers that are being developed in Professor Nadarajah's group contain many cutting-edge technologies for the analysis of aerodynamic flows and hence this short term project may be a starting point for a longer term research collaboration. This project focuses on developing recommendations of state-of-the-art technologies which could be applied to MAYA's solvers for transonic aerodynamic flows. In particular, we wish to focus on recommendations regarding the further development of two-equation turbulence models. The project will focus on comparing MAYA's parallel CFD solver with a number of NASA benchmark cases for which either experimental or numerical results are available. The results of the benchmark cases will be compared with published results, and those from Professor Nadarajah's solver.

该项目的主要目标是调查和解决玛雅在模拟复杂环境方面的挑战 湍流空气动力流动。要解决这一挑战，任务将是调查他们的现状 缺点，然后实现、验证和验证k-epsilon、Wilcox所需的算法 K-omega和Mentor k-omega SST湍流模型 空气动力流动。Maya的商业计算流体动力学解算器在 一系列应用，包括但不限于电子冷却、工艺分析和汽车加热 调职。然而，他们有一个迫切的市场需求来扩展他们的空气动力学分析软件，即， 车辆和工程结构上升力和阻力的计算。面向研究的计算 Nadarajah教授的团队正在开发的流体动力学解算器包含许多尖端技术 分析空气动力流动的技术，因此这一短期项目可能是 更长期的研究合作。这个项目的重点是开发最先进的建议 可应用于MAYA跨音速空气动力流动解算器的技术。特别是，我们 希望集中讨论关于进一步发展两方程湍流模型的建议。这个 该项目将专注于将Maya的并行CFD解算器与NASA的一些基准案例进行比较 其中既有实验结果，也有数值结果。基准案例的结果将是 与已发表的结果和Nadarajah教授的求解器的结果进行了比较。