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Mitarbeiter
Dr.phil. Christian Willert
Dr.phil. Christian Willert
Dr.phil. Christian Willert

Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Institut für Antriebstechnik
Triebwerksmesstechnik
Linder Höhe
51147 Köln

Telefon:+49 2203 601-2308
Email:Christian Willert
Internet:http://www.dlr.de/at

Ausbildung:
Studium der angewandten Ingenieurwissenschaften (Applied Mechanics and Enginnering Sciences) an der University of California, San Diego (1984 - 1990)
Schwerpunkte: Strömungsmechanik, Signal- und Bildverarbeitung, Laser-optische Messtechniken

Promotion:
1993, University of California, San Diego

Berufslaufbahn:
 seit 1997   wissenschaftlicher Mitarbeiter am Institut für Antriebstechnik 
 1994-1997   Gastwissenschaftler (1994) bzw. wissenschaftlicher Mitarbeiter am Institut für Strömungsmechanik, Abteilung Messverfahren und Strömungsanalyse
 1993-1994   Post-Doctorate Researcher, Graduate Aeronautical Laboratories, California Institute of Technology
 1992-1993   Post-Doctorate Researcher, Institute for Nonlinear Science, University of California, San Diego (USA)

Arbeitsgebiete:
Laser-gestützte Strömungsmessverfahren (Particle Image Velocimetry, Doppler Global Velocimetry) für den gezielten Einsatz in Turbomaschinen und Brennkammerversuchen

Veröffentlichungen

Ausgewählte Veröffentlichungen in Fachzeitschriften:

  1. Willert C (2006) Assessment of camera models for use in planar velocimetry calibration. Exp Fluids (in press)
  2. Willert C, Hassa C, Stockhausen G, Jarius M, Voges M, Klinner J (2006) Combined PIV and DGV applied to a pressurized gas turbine combustion facility. Meas Sci Technol (in press)
    (PDF version from PIV’05 conference, Pasadena, USA)
  3. Willert C, Stockhausen G, Beversdorff M, Klinner J, Lempereur C, Barricau P, Quest J, Jansen U (2005) Application of Doppler global velocimetry in cryogenic wind tunnels. Exp Fluids 39:420-430
    (PDF version from 2004 Lisbon symposium)
  4. Willert C, Jarius M (2002) Planar flow field measurements in atmospheric and pressurized combustion chambers. Exp Fluids 33:931-939
    (PDF version from PIV’01 conference, Göttingen, Germany)
  5. Roehle I, Willert C (2001) Extension of Doppler global velocimetry to periodic flows. Meas Sci Technol 12:420-431
  6. Roehle I, Schodl R, Voigt P, Willert C (2000) Recent developments and applications of quantitative laser light sheet measuring techniques in turbomachinery components. Measurement Science & Technology 11:1023-1035.
  7. Raffel M, Sehlhorst U, Willert C (1998) Vortical flow structures at a helicopter rotor model measured by LDV and PIV. Aeronautical Journal:102:221-227
  8. Willert C (1997) Stereoscopic digital particle image velocimetry for the application in wind tunnel flows. Meas Sci Technol 8:1465-1479
    (Highly Commended Article 1997)
  9. Willert C, Gharib M (1997) The interaction of spatially modulated vortex pairs with free surfaces. J Fluid Mech 345:227-250
  10. Willert C, Raffel M, Kompenhans J, Stasicki B., Kähler C. (1997) Recent applications of particle image velocimetry in aerodynamic research. Flow Meas Instrum 7:247-256.
  11. Willert C (1996) The fully digital evaluation of photographic PIV recordings. Appl Sci Research 56:79-102
  12. Hornung H, Willert C, Turner S (1995) The flow field downstream of a hydraulic jump. J Fluid Mech 287:299-316
  13. Willert C, Gharib M (1992) Three-dimensional particle imaging with a single camera. Exp Fluids 12:353-358
  14. Willert C, Gharib M (1991) Digital particle image velocimetry. Exp Fluids 10:181-193
    (cited by more than 400 journal articles)

Bücher und Buchkapitel:

  1. Willert C (2005) Doppler global velocimetry - Fundamentals, implementation and selected applications. VKI Lecture Series 2005-01: “Advanced Measurement Techniques for Supersonic Flows”, von Karman Institute of Fluid Dynamics, Brussels (ISBN 2-930389-57-5)
  2. Willert C, Lempereur C, Barricau P, Wernert P, Martinez B (2005) Applications of Doppler global velocimetry in transonic and supersonic wind tunnels. VKI Lecture Series 2005-01: “Advanced Measurement Techniques for Supersonic Flows”, von Karman Institute of Fluid Dynamics, Brussels (ISBN 2-930389-57-5)
  3. Raffel M, Willert C, Kompenhans J (1998) Particle image velocimetry – a practical guide. Springer Verlag - Berlin Heidelberg NewYork (ISBN 3-540-63683-8)
    also available in Japanese
  4. Kompenhans J, Raffel M, Willert C (1996) PIV applied to aerodynamic investigations in wind tunnels. VKI Lecture Series 1996-03: “Particle Image Velocimetry and Associated Techniques”, von Karman Institute for Fluid Dynamics (ISSN 0377-8312)
  5. Gharib M, Willert C (1989) Particle tracing revisited. Lecture Notes in Engineering: “Advances in Fluid Mechanics Measurements”, No. 45, Ed. M. Gad-el-Hak, Springer Verlag, New York, pp. 109-126 (ASIN 0-3875-1136-9)

Aktuelle Tagungsbeiträge:

  1. Willert C, Stockhausen G, Klinner J, Lempereur C, Barricau P, Loiret P, Raynal JC (2006) Performance and accuracy investigations of two Doppler global velocimetry systems applied in parallel. 13th Intl Symp Applic of Laser Techniques to Fluid Mechanics, Lisbon, Portugal (PDF)
  2. Lempereur C, Barricau P, Gleyzes C, Willert C, Stockhausen G, Klinner J (2006) Doppler Global Velocimetry in wind tunnels Implementation issues and performance analysis. 13th Intl Symposium on Applic Laser Techniques to Fluid Mechanics, Lisbon, Portugal (PDF)
  3. Voges M, Beversdorff M, Willert C, Krain H (2006) Application of particle image velocimetry to a transonic centrifugal compressor. 13th International Symposium on Application of Laser Techniques to Fluid Mechanics, Lisbon, Portugal (PDF)
  4. Richard H, Bosbach J, Henning A, Raffel M, Willert C, van der Wall BG (2006) 2C and 3C PIV Measurements on a Rotor in Hover Condition. 13th Intl Symp Applic Laser Techniques to Fluid Mechanics, Lisbon, Portugal (PDF)
  5. Geigle KP, Meier W, Aigner M, Willert C, Jarius M, Schmitt P, Schuermans B (2006) Phase resolved laser diagnostic measurements of a downscaled, fuel staged gas turbine combustor at elevated pressure and comparison with LES prediction. ASME Turbo Expo − Power for Land, Sea, and Air, Barcelona, Spain, GT2006-90875
  6. Hassa C, Willert C, Fischer M, Stockhausen G, Roehle I, Meier W, Wehr L, Kutne P (2006) Nonintrusive flowfield, temperature and species measurements on a generic aeroengine combustor at elevated pressures. ASME Turbo Expo − Power for Land, Sea, and Air, Barcelona, Spain, GT2006-90213
Artikel zum Thema
Triebwerksmesstechnik
Dr. Christian Willert
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