Small Grant for Exploratory Research: Transverse Acoustical Wave Interaction with a Turbulent Boundary Layer (REU Supplement)

用于探索性研究的小额资助：横向声波与湍流边界层的相互作用（REU 补充）

• 批准号: 9022470
• 负责人: Harold Jacobs
• 金额: $ 6.25万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-15 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9022470&HistoricalAwards=false
• 关键词: Small; Grant; Exploratory; Research; Transverse

With funding under a Small Grant for Exploratory Research, a modeling effort will address the interaction of transverse acoustical waves on the characteristics of a turbulent flat plate boundary layer. Both standing as well as traveling waves will be considered. Model validation will be through comparison with existing experimental data for the case of interaction with longitudinal acoustic waves. In that case, significant effects on transition and heat transfer have been observed. Transverse waves commonly occur in combustion chambers. Acoustically driven changes in wall shear and heat transfer could be utilized for beneficial effects in combustion and cooling applications.

在探索性研究小额赠款的资助下，一项模拟工作将研究横向声波对湍流平板边界层特性的相互作用。驻波和行波都将被考虑。对于与纵波相互作用的情况，将通过与现有实验数据的比较来验证模型的有效性。在这种情况下，观察到了对相变和换热的显著影响。横向波通常出现在燃烧室中。声学驱动的壁面剪切和换热变化可以在燃烧和冷却应用中产生有益的效果。