C
C. Dollinger
Researcher at University of Bremen
Publications - 13
Citations - 156
C. Dollinger is an academic researcher from University of Bremen. The author has contributed to research in topics: Turbine & Flow visualization. The author has an hindex of 6, co-authored 13 publications receiving 97 citations.
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Journal ArticleDOI
IR thermographic visualization of flow separation in applications with low thermal contrast
TL;DR: In this article, a measurement method for IR thermographic visualization of separated flow on rotor blades for wind turbines is demonstrated, which evaluates temporal temperature fluctuations from a thermographic images series by means of the standard deviation as well as the analysis of selected Fourier coefficients.
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Measurement uncertainty of IR thermographic flow visualization measurements for transition detection on wind turbines in operation
TL;DR: In this article, the measurement uncertainty budgets for three signal processing algorithms are derived and validated with wind tunnel experiments and field measurements on a 1.5MW wind turbine under sunny and cloudy weather conditions.
Journal ArticleDOI
IR thermographic flow visualization for the quantification of boundary layer flow disturbances due to the leading edge condition
C. Dollinger,Nicholas Balaresque,Nicholas Gaudern,Daniel Gleichauf,Michael Sorg,Andreas Fischer +5 more
TL;DR: In this paper, a non-invasive, camera-based measurement of the boundary layer flow disturbances on wind turbines in operation is proposed using thermographic flow visualization, where the actual and the undisturbed laminar-turbulent transition positions are determined in the thermographic images and a subsequent assignment to the rotor blade geometry obtains chord-based information.
Journal ArticleDOI
Investigation of Laminar–Turbulent Transition on a Rotating Wind-Turbine Blade of Multimegawatt Class with Thermography and Microphone Array
Torben Reichstein,Alois Peter Schaffarczyk,C. Dollinger,N. Balaresque,Erich Schülein,Clemens Jauch,Andreas Fischer +6 more
TL;DR: In this article, an aerodynamic glove was used to classify the boundary-layer state of a 2 megawatt wind turbine (WT) operating in the northern part of Schleswig-Holstein, Germany.
Journal ArticleDOI
Optimization of differential infrared thermography for unsteady boundary layer transition measurement
TL;DR: Differential infrared thermography (DIT) is a method of analyzing infrared images to measure the unsteady motion of the laminar-turbulent transition of a boundary layer as discussed by the authors.