【ASP-TNCFD|高军辉】适用于复杂几何结构的高阶有限差分格式及其在超音速喷流噪声上的应用
适用于复杂几何结构的高阶有限差分格式及其在超音速喷流噪声上的应用
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高军辉副教授
北京航空航天大学
专家简介:
高军辉,北京航空航天大学能源与动力工程学院副教授,主讲气体动力学(本科)、计算流体力学(本科)、基础声学(研究生)、计算气动声学(研究生)等课程。从事气动声学、流体动力学方面的研究工作,感兴趣的研究领域包括喷流噪声、风扇噪声和高精度数值方法。作为课题负责人主持多项基金项目和国家、企事业单位课题。发展的喷流噪声和风扇噪声高精度数值模拟程序,作为唯一气动噪声子模块,已经集成到航发研究院主持的专项“航空发动机数值仿真平台”中;同时该程序也成功应用到我国大飞机、航天火箭发射等领域。报告摘要:
高阶有限差分方法具有快速、高精度的特点,但是难以处理复杂几何结构。本报告将介绍一种针对高阶有限差分格式的网格块界面通量方法,该方法把高精度谱差分、通量重构等非结构方法中单元界面通量处理方式应用到结构网格块界面上,使高阶有限差分方法成为一种“粗粒度的非结构方法”,大大提高了其处理复杂几何结构的能力,而对格式精度没有影响。最后报告还将介绍这种方法在超音速双喷流耦合噪声上的应用。![](https://public.fangzhenxiu.com/fixComment/commentContent/imgs/1691686920214_7ll2hv.jpg?imageView2/0)
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2023年湍流与噪声和CFD方法暑期高级讲习班特邀报告