Publications 2017
Scaling of turbulence spectra measured in strong shear flow near the Earth’s surface
T. Mikkelsen , S. E .Larsen , H. E. Jørgensen, P. Astrup and X. G. Larsén
IOP Publishing, Royal Swedish Academy of Sciences, Phys. Scr. 92 (2017) 124002 (15pp) https://doi.org/10.1088/1402-4896/aa91b2
3D WindScanner lidar measurements of wind and turbulence around wind turbines, buildings and bridges
T. Mikkelsen, M. Sjöholm, N. Angelou, J. Mann
First Conference of Computational Methods in Offshore Technology (COTech2017), IOP Publishing, IOP Conf. Series: Materials Science and Engineering 276 (2017) 012004 doi:10.1088/1757-899X/276/1/012004
Turbulence estimation from a continuous-wave scanning lidar (SpinnerLidar)
J. G. Barnhoorn, M. Sjöholm, T. Mikkelsen
Demonstration and uncertainty analysis of synchronised scanning lidar measurements of 2-D velocity fields in a boundary-layer wind tunnel
Marijn Floris van Dooren, Filippo Campagnolo, Mikael Sjöholm, Nikolas Angelou, Torben Mikkelsen, and Martin Kühn
Published by Copernicus Publications on behalf of the European Academy of Wind Energy e.V., 2017 (DOI: https://doi.org/10.5194/wes-2-329-2017)
Type: Research article
Status: Published | Year: 2017 | DOI: https://doi.org/10.5194/wes-2-329-2017
Perdigão 2015: methodology for atmospheric multi-Doppler lidar experiments
Nikola Vasiljevi´c, José M.L.M. Palma, Nikolas Angelou, José Carlos Matos, Robert Menke,
Guillaume Lea, Jakob Mann, Michael Courtney, Luis Frölen Ribeiro, and Vitor M.M.G.C. Gomes
Atmos. Meas. Tech. Discuss., doi:10.5194/amt-2017-18, 2017
Wind field re-construction of 3D Wake measurements from a turbine-installed scanning lidar
Torben Mikkelsen, Tommy Herges, Poul Astrup, Mikael Sjöholm, and Brian Naughton
International Conference on Future Technologies for Wind Energy, October 2017
Publications 2016
Long-Range WindScanner System
Nikola Vasiljevic, Guillaume Lea, Michael Courtney, Jean-Pierre Cariou, Jakob Mann, Torben Mikkelsen
Remote Sensing, vol 8, no. 11.
Type: Research article
Status: Published | År: 2016 | DOI: 10.3390/rs8110896
Cheynet, Etienne ; Jakobsen, Jasna Bogunovic´ ; Snæbjörnsson, Jónas ; Mikkelsen, Torben ; Sjöholm, Mikael ; Mann, Jakob ; Hansen, Per ; Angelou, Nikolas ; Svardal, Benny
in journal: Experiments in Fluids — 2016, (ISSN: 14321114, 07234864) (DOI: 10.1007/s00348-016-2275-9), Volume 57, Issue 12, pp. 1-17
Type: Journal article
Status: Published | År: 2016 | DOI: 10.1007/s00348-016-2275-9
Investigation of wake interaction using full-scale lidar measurements and large eddy simulation
Machefaux, Ewan ; Larsen, Gunner Chr. ; Troldborg, Niels ; Hansen, Kurt Schaldemose ; Angelou, Nikolas ; Mikkelsen, Torben Krogh ; Mann, Jakob
in journal: Wind Energy (ISSN: 1095-4244) (DOI: http://dx.doi.org/10.1002/we.1936), vol: 19, issue: 8, pages: 1535-1551, 2016
Type: Journal article (Peer reviewed)
Status: Published | År: 2016 | DOI: http://dx.doi.org/10.1002/we.1936
Variations of the Wake Height over the Bolund Escarpment Measured by a Scanning Lidar
Lange, Julia ; Mann, Jakob ; Angelou, Nikolas ; Berg, Jacob ; Sjöholm, Mikael ; Mikkelsen, Torben Krogh
in journal: Boundary-Layer Meteorology (ISSN: 0006-8314) (DOI: http://dx.doi.org/10.1007/s10546-015-0107-8), vol: 159, pages: 147–159, 2016
Type: Journal article (Peer reviewed)
Status: Published | År: 2016 | DOI: http://dx.doi.org/10.1007/s10546-015-0107-8
Characterization of wind velocities in the upstream induction zone of a wind turbine using scanning continuous-wave lidars
Simley, Eric ; Angelou, Nikolas ; Mikkelsen, Torben Krogh ; Sjöholm, Mikael ; Mann, Jakob ; Pao, Lucy Y.
in journal: Journal of Renewable and Sustainable Energy (ISSN: 1941-7012) (DOI: http://dx.doi.org/10.1063/1.4940025), vol: 8, issue: 1, 2016
Type: Journal article (Peer reviewed)
Status: Published | År: 2016 | DOI: http://dx.doi.org/10.1063/1.4940025
Demonstration of synchronised scanning Lidar measurements of 2D velocity fields in a boundary-layer wind tunnel
van Dooren, M F ; Kühn, M. ; Petrovic, V. ; Bottasso, C. L. ; Campagnolo, F. ; Sjöholm, Mikael ; Angelou, Nikolas ; Mikkelsen, Torben Krogh ; Croce, A. ; Zasso, A.
in journal: Journal of Physics: Conference Series (Online) (ISSN: 1742-6596) (DOI: http://dx.doi.org/10.1088/1742-6596/753/7/072032), vol: 753, 2016
Presented at: The Science of Making Torque from Wind , 2016, Munich
Type: Conference article (Peer reviewed)
Status: Published | År: 2016 | DOI: http://dx.doi.org/10.1088/1742-6596/753/7/072032
Characterization of wind velocities in the wake of a full scale wind turbine using three ground-based synchronized WindScanners
Yazicioglu, Hasan ; Angelou, Nikolas ; Mikkelsen, Torben Krogh ; Trujillo, Juan-José
in journal: Journal of Physics: Conference Series (Online) (ISSN: 1742-6596) (DOI: http://dx.doi.org/10.1088/1742-6596/753/3/032032), vol: 753, 2016
Type: Conference article (Peer reviewed)
Status: Published | År: 2016 | DOI: http://dx.doi.org/10.1088/1742-6596/753/3/032032
Detailed field test of yaw-based wake steering
Fleming, P. ; Churchfield, M. ; Scholbrock, A. ; Clifton, A. ; Schreck, S. ; Johnson, K. ; Wright, A. ; Gebraad, P. ; Annoni, J. ; Naughton, B. ; Berg, J. ; Herges, T. ; White, J. ; Mikkelsen, Torben Krogh ; Sjöholm, Mikael ; Angelou, Nikolas
in journal: Journal of Physics: Conference Series (Online) (ISSN: 1742-6596) (DOI: http://dx.doi.org/10.1088/1742-6596/753/5/052003), vol: 753, 2016
Presented at: The Science of Making Torque from Wind , 2016, Munich
Type: Conference article (Peer reviewed)
Status: Published | År: 2016 | DOI: http://dx.doi.org/10.1088/1742-6596/753/5/052003
Using High-Fidelity Computational Fluid Dynamics to Help Design a Wind Turbine Wake
Churchfield, Matthew J. ; Wang, Qi ; Scholbrock, A. ; Herges, T. ; Mikkelsen, Torben Krogh ; Sjöholm, Mikael
in journal: Journal of Physics: Conference Series (Online) (ISSN: 1742-6596) (DOI: http://dx.doi.org/10.1088/1742-6596/753/3/032009), vol: 753, 2016
Presented at: The Science of Making Torque from Wind , 2016, Munich
Type: Conference article (Peer reviewed)
Status: Published | År: 2016 | DOI: http://dx.doi.org/10.1088/1742-6596/753/3/032009
Long-Range WindScanner System - Remote Sensing 08 00896
Publications 2015
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Application of lidars for assessment of wind conditions on a bridge site
Jakobsen, J. B. ; Cheynet, Etienne ; Snæbjörnsson, Jonas ; Mikkelsen, Torben Krogh ; Sjöholm, Mikael ; Angelou, Nikolas ; Hansen, Per ; Mann, Jakob ; Svardal, Benny ; Kumer, Valerie ; Reuder, Joachim
part of: Proceedings of the 14th International Conference on Wind Engineering, 2015,
Presented at: 14th International Conference on Wind Engineering, 2015, Porto Alegre
Type: Article in proceedings (Peer reviewed)
Status: Published | Year: 2015
Remote Sensing for Wind Energy
Pena Diaz, Alfredo ; Hasager, Charlotte Bay ; Badger, Merete ; Barthelmie, Rebecca Jane ; Bingöl, Ferhat ; Cariou, Jean-Pierre ; Emeis, Stefan ; Frandsen, Sten Tronæs ; Harris, Michael ; Karagali, Ioanna ; Larsen, Søren Ejling ; Mann, Jakob ; Mikkelsen, Torben Krogh ; Pitter, Mark ; Pryor, Sara ; Sathe, Ameya ; Schlipf, David ; Slinger, Chris ; Wagner, Rozenn
Publisher: DTU Wind Energy, Report name: Remote Sensing for Wind Energy, Number: DTU-Wind-Energy- E-Report-0084(EN), (ISBN: 978-87-93278-34-9), pages: 260
Type: Report
Status: Published | Year: 2015
Polarization Diversity Image-Reject Homodyne Receiver for Directional Radial Velocity Measurements in Light Detection and Ranging (LIDAR) Instruments
Abari, Farzad Cyrus Foroughi (Inventor) ; Mikkelsen, Torben Krogh (Inventor) ; Mann, Jacob (Inventor) ; Pedersen, Anders Tegtmeier (Inventor) ; Peucheret, Christophe (Inventor) ; Sjoholm, Mikael (Inventor)
Patent no.: WO2015044370, Date: 02-04-2015
Type: Patent
Status: Published | Year: 2015
Investigation of wake interaction using full-scale lidar measurements and large eddy simulation
Machefaux, Ewan ; Larsen, Gunner Chr. ; Troldborg, Niels ; Hansen, Kurt Schaldemose ; Angelou, Nikolas ; Mikkelsen, Torben Krogh ; Mann, Jakob
in journal: Wind Energy (ISSN: 1095-4244) (DOI: http://dx.doi.org/10.1002/we.1936), 2015
Type: Journal article (Peer reviewed)
Status: E-pub ahead of print | Year: 2015 | DOI: http://dx.doi.org/10.1002/we.1936
High Resolution Vertical Wind Profile Measurements
Pedersen, Anders Tegtmeier ; Angelou, Nikolas ; Mikkelsen, Torben Krogh
part of: Book of Abstracts - WindTech 2015 (ISBN: 978-0-7714-3099-2), pages: 21-22, 2015, WindEEE Research Institute,
Presented at: 2nd International Conference on Future Technologies in Wind Energy, 2015, London, ON
Type: Conference abstract in proceedings (Peer reviewed)
Status: Published | Year: 2015
3D Measurements and Modelling of Wake Flow Around a Full-Scale Vertical Axis Wind Turbine (Nenuphar)
Sjöholm, Mikael ; Angelou, Nikolas ; Hansen, Kasper Hjorth ; Mikkelsen, Torben Krogh ; Kluczewska-Bordier, Joanna ; Beneditti, Pascal ; Immas, Alexandre ; Parneix, Nicolas ; Silvert, Frederic
part of: Book of Abstracts - WindTech 2015 (ISBN: 978-0-7714-3099-2), pages: 71-72, 2015, WindEEE Research Institute,
Presented at: 2nd International Conference on Future Technologies in Wind Energy, 2015, London, ON
Type: Conference abstract in proceedings (Peer reviewed)
Status: Published | Year: 2015
Variations of the Wake Height over the Bolund Escarpment Measured by a Scanning Lidar
Lange, Julia ; Mann, Jakob ; Angelou, Nikolas ; Berg, Jacob ; Sjöholm, Mikael ; Mikkelsen, Torben Krogh
in journal: Boundary-Layer Meteorology (ISSN: 0006-8314) (DOI: http://dx.doi.org/10.1007/s10546-015-0107-8), 2015
Type: Journal article (Peer reviewed)
Status: E-pub ahead of print | Year: 2015 | DOI: http://dx.doi.org/10.1007/s10546-015-0107-8
Final Report WindScanner.dk
WINDSCANNER.DK - A New Danish Mobile Remote Sensing-based Infrastructure for
Wind Energy and Turbulence
Research: Design, Establishment and Operation 2009-2014
Publications 2014
Lidar-based Research and Innovation at DTU Wind Energy – a Review
Mikkelsen, Torben.
In: Journal of Physics: Conference Series (Online), Vol. 524, No. 1, 012007, 2014.
DOI: 10.1088/1742-6596/524/1/012007
Two-Dimensional Rotorcraft Downwash Flow Field Measurements by Lidar-Based Wind Scanners with Agile Beam Steering
Sjöholm, Mikael; Angelou, Nikolas; Hansen, Per; Hansen, Kasper Hjorth; Mikkelsen, Torben; Haga, Steinar; Silgjerd, Jon Arne; Starsmore, Neil. In: Journal of Atmospheric and Oceanic Technology, Vol. 31, 2014, p. 930-937.
DOI: 10.1175/JTECH-D-13-00010.1
Laser scanning of a recirculation zone on the Bolund escarpment
J. Mann, N. Angelou, M. Sj¨oholm, T. Mikkelsen, K. H. Hansen, D. Cavar, J. Berg Technical University of Denmark, Department of Wind Energy, Frederiksborgvej 399, 4000 Roskilde Denmark
Publications 2013
Full two-dimensional rotor plane inflow measurements by a spinner-integrated wind lidar
Mikael Sjöholm, Anders Tegtmeier Pedersen, Nikolas Angelou, Farzad Foroughi Abari,Torben Mikkelsen, Mike Harris, Chris Slinger, and Stefan Kapp
(1) Department of Wind Energy, Technical University of Denmark, DTU Risø Campus, Roskilde, Denmark (2) ZephIR Ltd., Ledbury, United Kingdom (3) Robert Bosch GmbH, Future Systems Industrial Technology, Stuttgart, Germanymisj@dtu.dk
Presented at EWEA 2013, 4-7 February, Vienna, Austria
A spinner-integrated wind lidar for enhanced wind turbine control
Mikkelsen, Torben; Angelou, Nikolas; Hansen, Kasper Hjorth; Sjöholm, Mikael; Harris, M.; Slinger, C.; Hadley, P.; Scullion, R.; Ellis, G.; Vives, G.
In: Wind Energy, Vol. 16, 2013, p. 625–643.
DOI: 10.1002/we.1564
Full-Scale Field Test of a Blade-Integrated Dual-Telescope Wind Lidar
Anders Tegtmeier Pedersen et. al.
Poster presented at EWEA 2013, 4-7 February, Vienna
Publications 2012
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Dissemination laser wind techniques
T. Mikkelsen and Søren Knudsen
In: International Innovation Eurofocus, december 2012, p. 58-60
A spinner-integrated wind lidar for enhanced wind turbine control
T. Mikkelsen, N. Angelou, K. Hansen, M. Sjöholm, M. Harris, C. Slinger, P. Hadley, R. Scullion, G. Ellis and G. Vives
1- Department of Wind Energy, Technical University of Denmark, DTU Risø Campus, Frederiksborgvej 399, 4000 Roskilde, Denmark
2- ZephIR Ltd., Natural Power, The Old Barns, Fairoaks Farm, Hollybush, Ledbury HR8 1EU, UK
Determining the Velocity Fine Structure by a Laser Anemometer in VAD operation
Leif Kristensen, Peter Kirkegaard, and Torben Mikkelsen
DTU Wind Energy E–0008(EN), August 2012
WindScanner.eu - a new Remote Sensing Research Infrastructure for On- and Offshore Wind Energy
Torben Mikkelsen et. al.
Paper presented at WEMEP 2012. International Conference on Wind Energy Materials, Engineering and Policies at BITS Hyderabad, 22nd - 23rd November 2012, HYDERABAD (South INDIA).
Laser scanning of a recirculation zone on the Bolund escarpment
Mann, Jakob; Angelou, Nikolas; Sjöholm, Mikael; Mikkelsen, Torben
In: Extended Abstracts of Presentations from the 16th International Symposium for the Advancement of Boundary-Layer Remote Sensing. Steering Committee of the 16th International Symposium for the Advancement of Boundary-Layer Remote Sensing, 2012. p. 19-22.
Helicopter downwash measured by continuous-wave Doppler lidars with agile beam steering
Sjöholm, Mikael; Angelou, Nikolas; Hansen, Per; Hansen, Kasper Hjorth; Mikkelsen, Torben; Haga, Steinar; Silgjerd, Jon Arne ; Starsmore, Neil
In: Extended Abstracts of Presentations from the 16th International Symposium for the Advancement of Boundary-Layer Remote Sensing. Steering Committee of the 16th International Symposium for the Advancement of Boundary-Layer Remote Sensing, 2012. p. 267-270.
First measurements by the DTU wind energy short range windscanner
Sjöholm, Mikael; Angelou, Nikolas; Hansen, Kasper Hjorth; Mann, Jakob; Mikkelsen, Torben
2012. Poster session presented at EWEA 2012 - European Wind Energy Conference & Exhibition, Copenhagen, Denmark.
Demonstration of short-range wind lidar in a high-performance wind tunnel
Anders Tegtmeier Pedersen, Belen Fernández Montes, Jens Engholm Pedersen, Michael Harris, and Torben Mikkelsen
Poster session presented at EWEA 2012 - European Wind Energy Conference & Exhibition, Copenhagen, Denmark