Christian Bak

Christian Bak

Senior Scientist

DTU WIND ENERGY
Department of Wind Energy

Technical University of Denmark

Frederiksborgvej 399

Building 114, Modul S31

4000 Roskilde

Ph.
Ph.
Mobile
Fax +45 46 77 59 60
E-mail chba@dtu.dk
ORCID 0000-0001-9060-151X

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2019
 

Increase in the annual energy production due to a retrofit of vortex generators on blades

Skrzypinski, Witold Robert ; Gaunaa, Mac ; Bak, Christian ; Junker, Birgit ; Brønnum, Niels Bruhn ; Kruse, Emil Krog
in: Wind Energy

Type: Journal article (Peer reviewed)

Status: Accepted/In press     |    Year: 2019     |    DOI: https://doi.org/10.1002/we.2446

  PDF

On leading edge erosion at turbine blades due to heavy rain and the application of erosion safe mode control to extend life

Hasager, Charlotte Bay ; Bech, Jakob Ilsted ; Bak, Christian
Presented at:
3rd ACI Operations & Maintenance for Offshore Wind

Type: Sound/Visual production (digital)

Status: Published     |    Year: 2019

  PDF

Transition characteristics measured on a 2MW 80m diameter wind turbine rotor in comparison with transition data from wind tunnel measurements

Aagaard Madsen , Helge ; Özçakmak, Özge Sinem ; Bak, Christian ; Troldborg, Niels ; Sørensen, Niels N.
part of: Proceedings of the AIAA Scitech 2019 Forum, 2019, Aerospace Research Central (ARC)
Presented at:
AIAA Scitech 2019 Forum

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.2514/6.2019-0801

2018
  PDF

Advanced Wind Tunnel Boundary Simulation for Kevlar Wall Aeroacoustic Wind Tunnels

Devenport, William ; Brown, Ken ; Borgoltz , Aurelien ; Paterson, Eric ; Bak, Christian ; Sørensen, Niels N. ; Olsen, Anders Smærup ; Gaunaa, Mac ; Fischer, Andreas ; Grinderslev, Christian
Presented at:
Advanced Wind Tunnel Boundary Simulation

Type: Paper (Peer reviewed)

Status: Published     |    Year: 2018

  PDF

Extending the life of wind turbine blade leading edges by reducing the tip speed during extreme precipitation events

Bech, Jakob Ilsted ; Hasager, Charlotte Bay ; Bak, Christian
in: Wind Energy Science, vol: 3, issue: 2, pages: 729-748

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.5194/wes-3-729-2018

  PDF

Inflow Turbulence and Leading Edge Roughness Effects on Laminar-Turbulent Transition on NACA 63-418 Airfoil

Özçakmak, Ö S ; Madsen, H A ; Sørensen, N N ; Sørensen, J N ; Fischer, Andreas ; Bak, C
in: Journal of Physics: Conference Series, vol: 1037, issue: 2
Presented at:
The Science of Making Torque from Wind 2018

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1088/1742-6596/1037/2/022005

  PDF

Investigation of droplet path in a rain erosion tester

Gaunaa, Mac ; Sørensen, N N ; Johansen, N Frost-Jensen ; Olsen, Anders Smærup ; Bak, C ; Andersen, R B
in: Journal of Physics: Conference Series, vol: 1037, issue: 6
Presented at:
The Science of Making Torque from Wind 2018

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1088/1742-6596/1037/6/062030

  PDF

Leading edge erosion of wind turbine blades

Hasager, Charlotte Bay ; Bech, Jakob Ilsted ; Kusano, Yukihiro ; Sjöholm, Mikael ; Mikkelsen, Torben Krogh ; Bak, Christian ; Skrzypinski, Witold Robert ; Fæster, Søren ; Tilg, Anna-Maria ; Vejen, Flemming ; Madsen, Martin Bonde ; Bayar , Mertcan ; Pedersen, Morten Saldern ; Halling, Kaj M.
Presented at:
Onshore and offshore wind engineering 2018

Type: Sound/Visual production (digital)

Status: Published     |    Year: 2018

  PDF

Measured aerodynamic forces on a full scale 2MW turbine in comparison with EllipSys3D and HAWC2 simulations

Madsen, H Aa ; Sørensen, N N ; Bak, C ; Troldborg, Niels ; Pirrung, Georg
in: Journal of Physics: Conference Series, vol: 1037, issue: 2
Presented at:
The Science of Making Torque from Wind 2018

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1088/1742-6596/1037/2/022011