Prediction of Transition over Airfoils by Using Parabolized Stability Equation

摘要：

In the present work, we combine PSE stability analysis and eN method to predict transition points over several airfoils: NACA0012, NLF (1)-0414, and NLF(1)-0416. Prior to PSE stability calculation, we first obtain mean flow properties by using our boundary layer analysis code developed following Iyers work. To verify our PSE stability analysis code, we first perform flat plat boundary layer stability analysis whose mean flow is determined by the Blasius solution. We then apply this PSE code to compute disturbance growth factor N for various airfoil boundary layers. Transition points predicted with these N-factor curves are compared with the other data available to illustrate that the use of PSE analysis is indeed highly recommended. It is found in the present work that transition point is well predicted with N= 11～12 over airfoil boundary layers

关键词： transition parabolized stability equation eN method airfoil boundary layer

作者: Donghun Park Seung O Park

作者单位: Professor, Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology,D Professor, Department of Aerospace Engineering,Korea Advanced Institute of Science and Technology,Da

会议类型: 国际会议

会议名称: 2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)

会议地点: 西安

会议语种:英文

页码: 309-313

在线出版日期: 2010-09-01（万方平台首次上网日期，不代表论文的发表时间）