Eulerian method for ice crystal icing in turbofan engines

Norde, E.

doi:10.3990/1.9789036543392

Cited by 12 publications

(27 citation statements)

References 99 publications

(202 reference statements)

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“…So the representative particle Reynolds number is to and the global Reynolds number may be to , while the Froude number is of the order . Further details on icing conditions and the range of physical parameters are described in Norde (2017) and Palmer & Smith (2019).…”

Section: Introductionmentioning

confidence: 99%

“…In the context of an ice crystal within a boundary layer, the range of sizes of particles is of the order 10 −3 to 10 −5 m. So the representative particle Reynolds number is 10 2 to 10 3 and the global Reynolds number may be 10 4 to 10 6 , while the Froude number is of the order 10 6 . Further details on icing conditions and the range of physical parameters are described in Norde (2017) and .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A body in nonlinear near-wall shear flow: impacts, analysis and comparisons

Palmer

Smith

2020

J. Fluid Mech.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A body in nonlinear near-wall shear flow: impacts, analysis and comparisons

Palmer

Smith

2020

J. Fluid Mech.

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“…The background for the present work mainly concerns aircraft flight safety [1][2][3][4] in the presence of ice-crystal impacts, ice-lump and other particle impacts, and storms. Bodies (particles) of various sizes approach the aircraft surface at many different angles and, in the case of ice crystals, can adhere partially or fully to the surface and thereby have an adverse effect on the aerodynamics.…”

Section: Introductionmentioning

confidence: 99%

Particle movement in a boundary layer

Jolley¹,

Palmer

Smith³

2021

J Eng Math

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The study here is concerned with a thin solid body passing through a boundary layer or channel flow and interacting with the flow. Relevant new features from modelling, analysis and computation are presented along with comparisons. Three scenarios of such fluid-body interactive evolution in two-dimensional settings are considered in turn, namely a long body translating upstream or downstream, a long body with little or no translation and a short body with or without translation. The main progress and findings concern predictions of the time taken by the body to traverse the flow and impact upon the underlying wall, the delicate behaviour at the onset of impact, the dependence on parameters such as the initial conditions and the mass and shape of the body, and the influence of streamwise translation of the body in the surrounding fluid flow.

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“…Typically the particle Reynolds number here is 10 2 to 10 3 and the global Reynolds number may be 10 4 to 10 6 . For further details on icing conditions and the range of physical parameters see the discussion in Norde (2017). Some caution is necessary however on the theoretical front regarding an aim to make firm practical predictions.…”

Section: Introductionmentioning

confidence: 99%

When a small thin two-dimensional body enters a viscous wall layer

Palmer¹,

Smith²

2019

Eur. J. Appl. Math

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If a body enters a viscous-inviscid fluid layer near a wall, then significant effects can be felt from the presence of incident vorticity, viscous forces and nonlinear forces. The focus here is on the response in the outer edge of such a wall layer. Nonlinear two-dimensional unsteady behaviour is examined through modelling, computation and analysis applied for a thin body travelling streamwise upstream or downstream or staying still relative to the wall. The wall layer with its balance between inviscid and viscous effects interacts freely with the body movement, causing relatively high magnitudes of pressure on top of the body and nonlinear responses in the gap between the body and the wall. The study finds explicit solutions for the motion of the body, separation of the flow arising near the wall and possible instabilities occurring over the length scale of any short body.

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Eulerian method for ice crystal icing in turbofan engines

Cited by 12 publications

References 99 publications

A body in nonlinear near-wall shear flow: impacts, analysis and comparisons

A body in nonlinear near-wall shear flow: impacts, analysis and comparisons

Particle movement in a boundary layer

When a small thin two-dimensional body enters a viscous wall layer

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