Grenzschichtforschung / Boundary Layer Research 1958
DOI: 10.1007/978-3-642-45885-9_23
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On the separation of the unsteady laminar boundary layer

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Cited by 81 publications
(55 citation statements)
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“…In the same year, Sears (1956) made an assumption that the unsteady separation point was characterized by the simultaneous vanishing of the shear and of the velocity at a point within the boundary layer as seen by an observer in a coordinate system convected with the separation velocity. Two years later, Moore (1958), while investigating a steady flow over a moving wall, arrived at a model analogous to that for unsteady separation. He stated, "for a slowly moving wall separation occurs when, at some point in the boundary layer, the profile velocity and shear simultaneously vanish".…”
Section: Flow Separationmentioning
confidence: 99%
“…In the same year, Sears (1956) made an assumption that the unsteady separation point was characterized by the simultaneous vanishing of the shear and of the velocity at a point within the boundary layer as seen by an observer in a coordinate system convected with the separation velocity. Two years later, Moore (1958), while investigating a steady flow over a moving wall, arrived at a model analogous to that for unsteady separation. He stated, "for a slowly moving wall separation occurs when, at some point in the boundary layer, the profile velocity and shear simultaneously vanish".…”
Section: Flow Separationmentioning
confidence: 99%
“…Returning to the boundary layer problem, non-small oscillations of the freestream (but still limited to non-reversing freestreams) have been tackled by Moore (1951Moore ( ), (1957 and Pedley (1972) for regions close to the leading edge of the plate, and i t is again found that the flow is Blasius like. Lin (1956), Gibson (1957) and Pedley (1972) studied the far downstream region, and found the flow takes on a double structure similar to that observed in the analogous small amplitude case.…”
Section: Introductionmentioning
confidence: 99%
“…The agreement between the values obtained by using the correlations (28) and (29) and the LES results is better then 10% for the whole range of considered Reynolds numbers. Obviously, the asymptotic limit cases are also included in the above set.…”
Section: Archival Correlations For Mean Heat Transfermentioning
confidence: 55%
“…the rotating disk) changes the separation condition. Then, the two-dimensional separation criterion ∂u ∂z d = 0 (11) at the wall has to be replaced by the so-called MRS-criterion [28][29][30][31] ∂u ∂z = 0 at regions with vanishing velocity u = 0 (12) satisfied normally within the flow domain. The separated flow is usually unsteady, and the laminar boundary layer theory does not offer an efficient approach for calculating the flow [28].…”
Section: Problem Formulamentioning
confidence: 99%