使用下游单元抑制离散粗糙度单元后的过渡

Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena Pub Date : 1900-01-01 DOI:10.1615/tsfp10.910

Alexandre R. Berger, M. McMillan, E. B. White, S. Suryanarayanan, D. Goldstein

{"title":"使用下游单元抑制离散粗糙度单元后的过渡","authors":"Alexandre R. Berger, M. McMillan, E. B. White, S. Suryanarayanan, D. Goldstein","doi":"10.1615/tsfp10.910","DOIUrl":null,"url":null,"abstract":"Maintaining laminar flow in boundary layers provides better aerodynamic efficiency than turbulent flow by virtue of the lower wall shear stress of a laminar boundary layers. In practice, maintaining laminar flow at the Reynolds numbers of operating aircraft is extremely difficult. High Re values produce strong instability growth that leads to turbulence and thin boundary layers enable even small surface imperfections to generate significant boundary-layer disturbances.","PeriodicalId":266791,"journal":{"name":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","volume":"9 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Suppression of Transition Behind a Discrete Roughness Element Using a Downstream Element\",\"authors\":\"Alexandre R. Berger, M. McMillan, E. B. White, S. Suryanarayanan, D. Goldstein\",\"doi\":\"10.1615/tsfp10.910\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Maintaining laminar flow in boundary layers provides better aerodynamic efficiency than turbulent flow by virtue of the lower wall shear stress of a laminar boundary layers. In practice, maintaining laminar flow at the Reynolds numbers of operating aircraft is extremely difficult. High Re values produce strong instability growth that leads to turbulence and thin boundary layers enable even small surface imperfections to generate significant boundary-layer disturbances.\",\"PeriodicalId\":266791,\"journal\":{\"name\":\"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena\",\"volume\":\"9 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1615/tsfp10.910\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1615/tsfp10.910","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 4

摘要

利用层流边界层较低的壁面剪切应力，在边界层内保持层流比紊流具有更好的气动效率。在实践中，维持层流在操作飞机的雷诺数是极其困难的。高Re值会产生强烈的不稳定性增长，从而导致湍流，而薄边界层使得即使很小的表面缺陷也会产生明显的边界层扰动。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Suppression of Transition Behind a Discrete Roughness Element Using a Downstream Element

Maintaining laminar flow in boundary layers provides better aerodynamic efficiency than turbulent flow by virtue of the lower wall shear stress of a laminar boundary layers. In practice, maintaining laminar flow at the Reynolds numbers of operating aircraft is extremely difficult. High Re values produce strong instability growth that leads to turbulence and thin boundary layers enable even small surface imperfections to generate significant boundary-layer disturbances.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Proceeding of Tenth International Symposium on Turbulence and Shear Flow Phenomena

自引率

0.00%

发文量