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A computationally efficient modelling of laminar separation bubblesThe goal is to accurately predict the characteristics of the laminar separation bubble and its effects on airfoil performance. Toward this end, a computational model of the separation bubble was developed and incorporated into the Eppler and Somers airfoil design and analysis program. Thus far, the focus of the research was limited to the development of a model which can accurately predict situations in which the interaction between the bubble and the inviscid velocity distribution is weak, the so-called short bubble. A summary of the research performed in the past nine months is presented. The bubble model in its present form is then described. Lastly, the performance of this model in predicting bubble characteristics is shown for a few cases.
Document ID
19890010133
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Dini, Paolo (Pennsylvania State Univ. University Park, PA, United States)
Maughmer, Mark D. (Pennsylvania State Univ. University Park, PA, United States)
Date Acquired
September 5, 2013
Publication Date
February 1, 1989
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NAS 1.26:184789
NASA-CR-184789
Accession Number
89N19504
Funding Number(s)
CONTRACT_GRANT: NAG1-778
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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