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Technical University of Denmark Af: Robert Mikkelsen Geometri af Vindmølle rotor og Skibspropeller Indhold •Flow gennem rotorer •Hastigheds trekanter •Skibs.

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Presentation on theme: "Technical University of Denmark Af: Robert Mikkelsen Geometri af Vindmølle rotor og Skibspropeller Indhold •Flow gennem rotorer •Hastigheds trekanter •Skibs."— Presentation transcript:

1 Technical University of Denmark Af: Robert Mikkelsen Geometri af Vindmølle rotor og Skibspropeller Indhold •Flow gennem rotorer •Hastigheds trekanter •Skibs propeller blad •Vindmølle blad

2 Wake states – Navier Stokes – Actuator Disc Propeller : C T = 3 Turbine : C T = -0.8 Turbulent – Vortex ring state : C T = -1.3 Technical University of Denmark

3 Propeller skrue – Pitch - Stigning International Towing Tank Committee (ITTC)

4 Technical University of Denmark Hastigheds Trekant for Propeller Rotor w wtwt V o +w ax φ ΩrΩr V rel φ φ1φ1 L F tan F ax VoVo Pitch Rotorplan

5 Technical University of Denmark Vinkler International Towing Tank Committee (ITTC)

6 Technical University of Denmark Hastigheds Trekant for Mølle Rotor w wtwt V o -w ax φ ΩrΩr V rel φ φ1φ1 L F tan F ax VoVo Rotorplan

7 Technical University of Denmark Reference Linje i Propeller Blad International Towing Tank Committee (ITTC)

8 Technical University of Denmark Skew Propeller International Towing Tank Committee (ITTC)

9 Technical University of Denmark Rake - Koning International Towing Tank Committee (ITTC)

10 Technical University of Denmark Profiler NACA RAF Eppler Wortmann (svævefly) Udvalgte profiler

11 Technical University of Denmark Conventionel propeller

12 Technical University of Denmark LM 19m vindmølle vinge

13 Technical University of Denmark High skew propeller

14 Technical University of Denmark High skew propeller

15 Technical University of Denmark CFD på High skew propeller

16 Technical University of Denmark CFD på High skew propeller

17 Technical University of Denmark Opgave - High skew propeller Highskewlay.dat r/R pitch chord Skew rake bagkant forkant e e e e e e e e e e e e e e e e e e e e e Highskewprofiles.dat xp(1) yp(1) xp(2) yp(2) xp(3) yp(3) E E E E E+00 …… E E E E E-01 …… E E E E E-01 …… •Generer propeller overflade Data: highskewlay.dat, highskewprofiles.dat


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