BiGlobal Stability of Shear Flows: Spanwise & Streamwise Analyses

Koen Groot

doi:10.4233/uuid:60ef07b2-00db-418b-9495-5a9baf6105df

BiGlobal Stability of Shear Flows: Spanwise & Streamwise Analyses

Koen Groot

Aerodynamics

Research output: Thesis › Dissertation (TU Delft)

723 Downloads (Pure)

Abstract

Laminar-turbulent transition dictates an increase in skin friction. The resulting turbulent skin friction contributes to approximately 40% of the total drag of commercial aircraft. Reducing the turbulent flow region by postponing transition can therefore significantly reduce the carbon footprint and costs of flying. Transition prediction is required in order to do so, which depends on a detailed understanding of the transition process.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	Delft University of Technology
Supervisors/Advisors	van Oudheusden, B.W., Supervisor Kotsonis, M., Advisor Schuttelaars, H.M., Advisor
Award date	7 Dec 2018
Print ISBNs	978-94-6366-115-7
DOIs	https://doi.org/10.4233/uuid:60ef07b2-00db-418b-9495-5a9baf6105df
Publication status	Published - 2018

Keywords

Flow instability
measured base flows
Micro-ramp
Swept-wing boundary layer
Crossflow instability
Streamwise BiGlobal problem

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10.4233/uuid:60ef07b2-00db-418b-9495-5a9baf6105df

A3 Dissertation - K.J. Groot - BiGlobal Stability of Shear Flows - Spanwise & Streamwise Analyses '181129 - OnlineCopyFinal published version, 31.8 MB

Cite this

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title = "BiGlobal Stability of Shear Flows: Spanwise & Streamwise Analyses",

abstract = "Laminar-turbulent transition dictates an increase in skin friction. The resulting turbulent skin friction contributes to approximately 40% of the total drag of commercial aircraft. Reducing the turbulent flow region by postponing transition can therefore significantly reduce the carbon footprint and costs of flying. Transition prediction is required in order to do so, which depends on a detailed understanding of the transition process.",

keywords = "Flow instability, measured base flows, Micro-ramp, Swept-wing boundary layer, Crossflow instability, Streamwise BiGlobal problem",

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N2 - Laminar-turbulent transition dictates an increase in skin friction. The resulting turbulent skin friction contributes to approximately 40% of the total drag of commercial aircraft. Reducing the turbulent flow region by postponing transition can therefore significantly reduce the carbon footprint and costs of flying. Transition prediction is required in order to do so, which depends on a detailed understanding of the transition process.

AB - Laminar-turbulent transition dictates an increase in skin friction. The resulting turbulent skin friction contributes to approximately 40% of the total drag of commercial aircraft. Reducing the turbulent flow region by postponing transition can therefore significantly reduce the carbon footprint and costs of flying. Transition prediction is required in order to do so, which depends on a detailed understanding of the transition process.

KW - Flow instability

KW - measured base flows

KW - Micro-ramp

KW - Swept-wing boundary layer

KW - Crossflow instability

KW - Streamwise BiGlobal problem

U2 - 10.4233/uuid:60ef07b2-00db-418b-9495-5a9baf6105df

DO - 10.4233/uuid:60ef07b2-00db-418b-9495-5a9baf6105df

M3 - Dissertation (TU Delft)

SN - 978-94-6366-115-7

ER -

BiGlobal Stability of Shear Flows: Spanwise & Streamwise Analyses

Abstract

Keywords

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