Measurements in an incompressible three-dimensional turbulent boundary layer, under infinite swept-wing conditions, and comparison with theory

B. van den Berg, A. Elsenaar, J.P.F. Lindhout, P. Wesseling

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Abstract

First a three-dimensional turbulent boundary-layer experiment is described. This has been carried out with the specific aim of providing a test-case for calculation methods. Much attention has been paid to the design of the test set-up. An infinite swept-wing flow has been simulated with good accuracy. The initially two-dimensional boundary layer on the test plate was subjected to an adverse pressure gradient, which led to three-dimensional separation near the trailing edge of the plate. Next, a calculation method for three-dimensional turbulent boundary layers is discussed. This solves the boundary-layer equations numerically by finite differences. The turbulent shear stress is obtained from a generalized version of Bradshaw's two-dimensional turbulent shear stress equation. The results of the calculations are compared with those of the experiment. Agreement is good over a considerable distance; but large discrepancies are apparent near the separation line.
Original languageEnglish
Pages (from-to)127-148
JournalJournal of fluid mechanics
Volume70
Issue number1
DOIs
Publication statusPublished - 1975

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three dimensional boundary layer
swept wings
Swept wings
turbulent boundary layer
Boundary layers
shear stress
two dimensional boundary layer
Shear stress
boundary layer equations
trailing edges
pressure gradients
Pressure gradient
Experiments

Cite this

van den Berg, B. ; Elsenaar, A. ; Lindhout, J.P.F. ; Wesseling, P. / Measurements in an incompressible three-dimensional turbulent boundary layer, under infinite swept-wing conditions, and comparison with theory. In: Journal of fluid mechanics. 1975 ; Vol. 70, No. 1. pp. 127-148.
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Measurements in an incompressible three-dimensional turbulent boundary layer, under infinite swept-wing conditions, and comparison with theory. / van den Berg, B.; Elsenaar, A.; Lindhout, J.P.F.; Wesseling, P.

In: Journal of fluid mechanics, Vol. 70, No. 1, 1975, p. 127-148.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - Measurements in an incompressible three-dimensional turbulent boundary layer, under infinite swept-wing conditions, and comparison with theory

AU - van den Berg, B.

AU - Elsenaar, A.

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AU - Wesseling, P.

PY - 1975

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