Search for dissertations about: "turbulent boundary layer"

Showing result 1 - 5 of 143 swedish dissertations containing the words turbulent boundary layer.

  1. 1. Experimental study on turbulent boundary-layer flows with wall transpiration

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Marco Ferro; Jens Fransson; Bengt Fallenius; Joseph Klewicki; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbulent boundary layer; boundary-layer suction; boundary-layer blowing; wall-bounded turbulent flows; self-sustained turbulence; Teknisk mekanik; Engineering Mechanics;

    Abstract : Wall transpiration, in the form of wall-normal suction or blowing through a permeable wall, is a relatively simple and effective technique to control the behaviour of a boundary layer. For its potential applications for laminar-turbulent transition and separation delay (suction) or for turbulent drag reduction and thermal protection (blowing), wall transpiration has over the past decades been the topic of a significant amount of studies. READ MORE

  2. 2. PIV measurements in a separating turbulent APG boundary layer

    University dissertation from Stockholm : Mekanik

    Author : Kristian Angele; [2000]
    Keywords : Adverse pressure gradient APG ; Turbulent; Boundary layer; Separation; PIV;

    Abstract : .... READ MORE

  3. 3. Modelling and control of turbulent and transitional flows

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Pierluigi Morra; Dan S. Henningson; Ardeshir Hanifi; André V. G. Cavalieri; Shervin Bagheri; Aimee S. Morgans; [2020]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reduced order modeling; flow control; resolvent analysis; transi- tional boundary layer; turbulent boundary layer; drag reduction; high-fidelity wall-turbulence modelling; modellreduktion; strömningskontroll; resolvent analys; laminär- turbulent omslag; turbulent gränsskikt; motståndsminskning; väggturbulens modellering; Teknisk mekanik; Engineering Mechanics;

    Abstract : The dynamics of fluid motion can accurately be described by the Navier– Stokes equations. Manipulating these equations to reduce their complexity but preserving their main characteristics has always been a key research activity in the field of fluid mechanics. READ MORE

  4. 4. Experimental studies of turbulent boundary layer separation and control

    University dissertation from Stockholm : Mekanik

    Author : Kristian Angele; [2003]
    Keywords : turbulence; boundary layer; separition; adverse pressure graddient;

    Abstract : The object ofthe present work is to experimentally study thecase ofa turbulent boundary layer subjected to an AdversePressure Gradient (APG) with separation and reattachment. Thisconstitutes a good test case for advanced turbulence modeling. READ MORE

  5. 5. Optimal Control of Boundary Layer Transition

    University dissertation from Stockholm : Mekanik

    Author : Markus Högberg; [2001]
    Keywords : laminar-turbulent transition; transition control; turbulence control; flow control; boundary layer flow; channel flow; optimal control; adjoint equations; Riccati equations; Orr--Sommerfeld--Squire equations; secondary instability; transient gro;

    Abstract : .... READ MORE