On the prediction of laminarisation

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dc.contributor.author B. E. Launder en_US
dc.contributor.author W. P. Jones en_US
dc.date.accessioned 2014-10-20T11:05:28Z
dc.date.available 2014-10-20T11:05:28Z
dc.date.issued 1968 en_US
dc.identifier.other ARC/CP-1036 en_US
dc.identifier.uri https://reports.aerade.cranfield.ac.uk/handle/1826.2/1049
dc.description.abstract In rapid accelerations it is known that an originally turbulent boundary layer may undergo a partial or complete decay to laminar; a phenomenon known as laminarisation, The report distinguishes between 'moderate and 'severe' accelerations. For the former, the sublayer of the boundary layer undergoes considerable change in structure but the boundary layer remains essentially turbulent. For the latter, a complete degeneration to laminar flow will take place if the acceleration continues over sufficient distance. Two simple models have been proposed for the variation of turbulent shear stress, according to whether the acceleration is 'moderate' or 'severe'. These models have been incorporated into the finite difference prediction procedure of Patankar and Spalding and comparison made with a limited number of experiments. Agreement with experiment is reasonably good and progress to date has heen sufficiently encouraging to suggest that the accurate prediction of laminarisation is now an attainable objective. en_US
dc.relation.ispartofseries Aeronautical Research Council Current Papers en_US
dc.title On the prediction of laminarisation en_US

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