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Wind tunnel tests on ice accretion on wind turbine blades Adriána Hudecz, Holger H. Koss and Martin O. L. Hansen, DTU

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Wind tunnel tests on ice accretion on wind turbine blades Adriána Hudecz, Holger H. Koss and Martin O. L. Hansen, DTU

  1. 1. Wind Tunnel Tests on Ice Accretion on Wind Turbine Blades Preparation, Set-up Adriana Hudecz Martin O.L. Hansen Holger H. Koss
  2. 2. Purpose • Study the ice build-up • Study the effect of ice on the aerodynamics • Study the flow around the iced blade – flow visualization • Compare results with numerical programs and other studies 2 DTU Wind Energy, Technical University of Denmark 7 February 2012
  3. 3. Wind Tunnel • Climatic wind tunnel – FORCE Technology and DTU – Rain, ice, snow [Picture: http://www.cesdyn.byg.dtu.dk/Research/Climatic_Wind_Tunnel.aspx] 3 DTU Wind Energy, Technical University of Denmark 7 February 2012
  4. 4. Test set-up • NACA 64-618 airfoil section provided by LM Wind Power • 900 mm chord length and 1350 mm width 4 DTU Wind Energy, Technical University of Denmark 7 February 2012
  5. 5. Test set-up • NACA 64-618 airfoil section, provided by LM Wind Power • 900 mm chord length and 1350 mm width • A pair of AMTI MC5 Force transducer is also included in the set up • Equipped with pressure taps 5 DTU Wind Energy, Technical University of Denmark 7 February 2012
  6. 6. Test set-up - final In the workshop 6 DTU Wind Energy, Technical University of Denmark 7 February 2012
  7. 7. Test set-up - final In the tunnel Down stream Up stream 7 DTU Wind Energy, Technical University of Denmark 7 February 2012
  8. 8. Test set-up - final 8 DTU Wind Energy, Technical University of Denmark 7 February 2012
  9. 9. Wind Tunnel Tests - Preparation • Due to unexpected circumstances – Some velocity tests – test the set up – Flow visualization – with oil based smoke generator and laser 9 DTU Wind Energy, Technical University of Denmark 7 February 2012
  10. 10. Wind Tunnel Tests – Flow Visualization 10 DTU Wind Energy, Technical University of Denmark 7 February 2012
  11. 11. Wind Tunnel Tests – Flow Visualization 11 DTU Wind Energy, Technical University of Denmark 7 February 2012
  12. 12. Wind Tunnel Tests – Flow Visualization 12 DTU Wind Energy, Technical University of Denmark 7 February 2012
  13. 13. Wind Tunnel Tests – Further Plans • Dry test: – Test of the set-up both aerodynamics and pressure distribution, flow visualization • Ice test: – Test of ice build up with different velocity and temperature – Changes of aerodynamics as a function of time and amount ice – Flow visualization 13 DTU Wind Energy, Technical University of Denmark 7 February 2012
  14. 14. Thank you !Plans Contact: Adriana Hudecz, ahud@dtu.dk 14 DTU Wind Energy, Technical University of Denmark 7 February 2012

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