← Louis Gagnon : Publications
revues scientifiques // scientific journals
18. Gagnon, L., Donners, L., Zimmer, F., Kessler, M., Aerodynamic Performance of a Hovering Cycloidal Rotor: A CFD Study with Experimental Validation, Journal of the American Helicopter Society, 69:032004 2024, https://doi.org/10.4050/JAHS.69.032004
17. Zimmer, F. and Gagnon, L., « Study on the Performance of a Cycloidal Rotor in Hover at Different Reynolds Numbers », Journal of Fluids Engineering, 145(5), 2023, https://doi.org/10.1115/1.4056844
16. Gagnon, L., Morandini, M., and Fournier, S. « Parametric optimization of a cyclogiro aircraft design for efficient hover with aeroelastic considerations », accompanying code, Journal of Applied and Computational Mechanics, 7(3):1774-1787, 2021, doi:10.22055/jacm.2021.35872.2752
15. Gagnon, L. « Numerical Investigation of Aerodynamic Fairings on a Cycloidal Rotor », accompanying videos, in New Results in Numerical and Experimental Fluid Mechanics XIII. STAB/DGLR Symposium 2020, Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 151. Springer, Cham., Edited by Dillmann A., Heller G., Krämer E., Wagner C., 2021, https://doi.org/10.1007/978-3-030-79561-0_33
14. Gagnon, L., Morandini, M., and Ghiringhelli, G.L., « A review of friction damping modeling and testing », Archive of Applied Mechanics, 90:107-126, 2020, doi:10.1007/s00419-019-01600-6
13. Gagnon, L., Morandini, M., and Ghiringhelli, G.L., « A review of particle damping modeling and testing », Journal of Sound and Vibration, 459, 2019, doi: 10.1016/j.jsv.2019.114865
12. Gagnon, L., Quaranta, G., and Schwaiger, M., « Open Source 3D CFD of a Quadrotor Cyclogyro Aircraft », OpenFOAM® (Selected papers of the 11th Workshop), Edited by Nóbrega J., Jasak H., 2019, doi: 10.1007/978-3-319-60846-4_27
11. Gagnon, L., Quaranta, G., Schwaiger, M., and Wills, D., « Aerodynamic analysis of an unmanned cyclogiro aircraft », accompanying videos, SAE Tech Paper 2018-01-6005, 2018, doi: 10.4271/2018-01-6005
10. Gagnon, L., Morandini, M., Quaranta, G., Masarati, P., Xisto, C.M., and Páscoa, J.C., « Aeroelastic Analysis of a Cycloidal Rotor Under Various Operating Conditions », AIAA Journal of Aircraft, 55(4):1675-1688, 2018, doi: 10.2514/1.C034005
9. Xisto, C.M., Leger, J.A., Páscoa, J.C., Gagnon, L., Masarati, P., Angeli, D., and Dumas, A. « Parametric Analysis of a Large-scale Cycloidal Rotor in Hovering Conditions », Journal of Aerospace Engineering, 30(1), 2017, doi: 10.1061/(ASCE)AS.1943-5525.0000658
8. Gagnon, L., Morandini, M., Quaranta, G., Muscarello, V., and Masarati, P., « Aerodynamic models for cycloidal rotor analysis
», J. of Aircraft Engineering and Aerospace Technology, 88(2):215-231, 2016, doi: 10.1108/AEAT-02-2015-0047
7. Bilodeau, J.-P., Gagnon, L., and Doré, G., « Assessment of the relationship between the International Roughness Index and dynamic loading of heavy vehicles », Int. J. of Pavement Engineering, 18(8):693-701, 2017, doi: 10.1080/10298436.2015.1121780
6. Gagnon, L., Richard, M.J., and Doré, G., « A multibody dynamics model to assess the impact of road unevenness on the efficiency of a semitrailer truck », Int. J. of Vehicle Systems Modelling and Testing, 10(1):1-28, 2015, doi: 10.1504/IJVSMT.2015.067519
5. Múčka, P., and Gagnon, L., « Influence of tyre-road contact model on vehicle vibration response », Vehicle System Dynamics, 53(9):1227-1246, 2015, doi: 10.1080/00423114.2015.1041992
4. Gagnon, L., Doré, G., and Richard, M.J., « An overview of various new road profile quality evaluation criteria : part 1 », Int. J. of Pavement Engineering, 16(3):224-238, 2015, doi: 10.1080/10298436.2014.942814
3. Gagnon, L., Doré, G., and Richard, M.J., « An overview of various new road profile quality evaluation criteria : part 2 », Int. J. of Pavement Engineering, 16(9):784-796, 2015, doi: 10.1080/10298436.2014.960998
2. Gagnon, L., Richard, M.J., Masarati P., Morandini, M., and Doré, G., « An Implicit Ring Tire Model for Multibody Simulation with Energy Dissipation », Tire Science and Technology, 42(2):62-84, 2014, url: http://tiresciencetechnology.org/doi/abs/10.2346/tire.14.420203
1. Gagnon, L., Richard, M.J., and Lévesque, B., « Simulation of a rotating device that reduces the aerodynamic drag of an automobile », Trans. Can. Soc. Mech. Eng., 35(2):229-249, 2011, url: http://www.nrcresearchpress.com/doi/abs/10.1139/tcsme-2011-0014
thèses // theses
Gagnon, L., « Développement d'un modèle dynamique et quantification de l'influence du profil de la route sur un véhicule », PhD Thesis, Laval University, Québec, Canada, 2013, url: https://corpus.ulaval.ca/jspui/bitstream/20.500.11794/24218/1/30171.pdf
Gagnon, L., « Calcul de la résistance aérodynamique d’un véhicule muni de pièces en mouvement », Master's Thesis, Laval University, Québec, Canada, 2010, url: https://corpus.ulaval.ca/jspui/bitstream/20.500.11794/21795/1/27288.pdf
thèses supervisées // supervised theses
9. Schollenberger, K., « Optimizing Automated Postprocessing of Point Clouds for Accurate Wind Turbine Blade CFD Analysis », Bachelor's Thesis, Stuttgart University, Stuttgart, Germany, 2024.
9. Heider, M., « Create an automated structured mesh generation method for rotor blades using exclusively open source software », Bachelor's Thesis, Stuttgart University, Stuttgart, Germany, 2023.
8. Kasper, K., « Using URANS CFD to Optimize the Pitching Motion and Path of the Cycloidal Rotor Blades », Master's Thesis, Stuttgart University, Stuttgart, Germany, 2022.
7. Donners, L., « Experimental validation of a cycloidal rotor URANS CFD model and geometric parameter optimization », Bachelor's Thesis, accompanying code, Stuttgart University, Stuttgart, Germany, 2022.
6. Schließus, J., « Create a Fluid-Structure Simulation Framework for Cycloidal Rotors », Bachelor's Thesis, accompanying code, Stuttgart University, Stuttgart, Germany, 2021.
5. Huang, D., « Evaluate the Performance of a Camber Controlled Cycloidal Rotor », Master's Thesis, accompanying code, Stuttgart University, Stuttgart, Germany, 2021.
4. Zimmer, F., « Investigation of the Reynolds Number on the Performance of a Cycloidal Rotor », Bachelor's Thesis, accompanying video, Stuttgart University, Stuttgart, Germany, 2021, Investigation of the Reynolds Number on the performance of a cycloidal rotor
3. Ehrenfeld, S., « Development of a Trim Method for Cycloidal Rotor in a CFD Simulation », Bachelor's Thesis, Stuttgart University, Stuttgart, Germany, 2021, url: https://stg.ibs-bw.de/aDISWeb/app?service=direct/0/Home/$DirectLink&sp=SOPAC02&sp=SAKSWB-IdNr175543488X
2. Ganzmann, J., « CFD Simulation of VTOL-Cyclogyros using Chimera / Overset Mesh Motion », Bachelor's Thesis, Stuttgart University, Stuttgart, Germany, 2020, url: https://stg.ibs-bw.de/aDISWeb/app?service=direct/0/Home/$DirectLink&sp=SOPAC02&sp=SAKSWB-IdNr1742240755
1. Cogan, S., « CFD-based optimization of cyclorortor performance with varying Reynold's number and pitching function », Bachelor's Thesis, Stuttgart University, Stuttgart, Germany, 2020, url: https://stg.ibs-bw.de/aDISWeb/app?service=direct/0/Home/$DirectLink&sp=SOPAC02&sp=SAKSWB-IdNr1742829899
congrès scientifiques // academic conferences
27. Gagnon, L.* and Lutz, T. « Transforming Laser-Scanned 750 kW Turbine Surface Geometry Data into Smooth CAD for CFD Simulations », proceedings of the Torque 2024 conference, Journal of Physics: Conference Series, Volume 2767, Measurement and testing, 2024, doi: 10.1088/1742-6596/2767/4/042002
26. Gagnon, L.* and Lutz, T. « Automatic Reconstruction of the Measured Surface of Wind Turbine Blades from the WindForS Complex Terrain Testfield on the Albtrauf for CFD Modeling », presentation only, 21. STAB-Workshop, Göttingen, Germany, 7-8 November 2023
25. Gagnon, L.*, « What 3 years as a guest at IAG-Stuttgart brought to cyclorotor simulation: an overview of progress and results », presentation only, 5th French/Belgian OpenFOAM® users conference, Lyon, France, 17-18 May 2022
24. Schließus, J.* and Gagnon, L. « Parallel Fluid-Structure Simulation of Cycloidal Rotors », abstract and presentation, accompanying code, presentation pdf, presentation video, Multi-scale, Multi-physics and Coupled Problems on Highly Parallel Systems (MMCP22) workshop, HPC Asia 2022, held virtually, January 14, Kobe, Japan, 2022
23. Huang, D.* and Gagnon, L. « Relying on Dynamically Morphing Blades to Increase the Efficiency of a Cycloidal Rotor », accompanying code, presentation pdf, accompanying videos, 11th European Aeronautics Science Network International Conference, held virtually, September 1 to 4, 2021, doi: 10.1088/1757-899X/1226/1/012014
23. Cogan, S.* and Gagnon, L. « Numerical Analysis of Cyclorotor Aerodynamic Properties in Hovering State », presented two years in a row due to a technical issue with publication, presentation pdf, accompanying video, 11th European Aeronautics Science Network International Conference, held virtually, September 1 to 4, 2021, doi: 10.1088/1757-899X/1226/1/012039
22. Ganzmann, J.* and Gagnon, L. « Study of the Overset Approach for Simulating Cycloidal Rotors and Comparison to other Rigid Mesh Motion Approaches », presentation only, 16th OpenFOAM Workshop, held virtually, June 8-11, 2021
21. Cogan, S.* and Gagnon, L. « Numerical Analysis of Cyclorotor Aerodynamic Properties in Hovering State », paper will be published at the next conference, 10th European Aeronautics Science Network International Conference, held virtually, September 2 to 4, 2020
20. Gagnon, L., « Meshing for highly parallel rotating machinery using AMI », Splash presentation only, 15th OpenFOAM Workshop, held virtually in Arlington, Virginia, June 22-26, 2020
19. Gagnon, L. and Masarati, P.*, « Autonomous Untethered Flight of Multibody Dynamics Rotorcraft With Cycloidal Rotors », companion video, presentation PDF, DETC2018-85152, ASME IDETC/CIE 2018, Québec City, Canada, August 26-29, 2018, doi: 10.1115/DETC2018-85152
18. Terze, Z.*, Pandža, V., Zlatar, D., Masarati, P., and Gagnon, L. « Vortical Flow Airfoil Dynamics in Lie Group Setting: Geometric Reduction and Numerical Analysis », DETC2018-85879, ASME IDETC/CIE 2018, Québec City, Canada, August 26-29, 2018
17. Gagnon, L., « Studying tires, roads, and cycloidal rotors with multibody dynamics », presentation only, 1st Chrono-MBDyn User Meeting, Parma, Italy, April 19 to 21, 2017
16. Gagnon, L., « MBDyn's experience at the Google Summer of Code », presentation only, 1st Chrono-MBDyn User Meeting, Parma, Italy, April 19 to 21, 2017
15. Gagnon, L.*, Quaranta, G., Schwaiger, M., and Wills, D., « Quadrotor cyclogyro aircraft in forward flight CFD model », presentation only, 11th OpenFOAM Workshop, Guimarães, Portugal, June 26 to 30, 2016
14. Gagnon, L.*, Masarati, P., Morandini, M., and Quaranta, G., « Flight scenarios study of two cycloidal rotor aircraft concepts », 4th Joint International Conference on Multibody System Dynamics, Montréal, Canada, May 29 to June 2, 2016
13. Gagnon, L.*, Quaranta, G., Morandini, M., and Masarati, P., « Cycloidal rotor aerodynamic and aeroelastic analysis », 4th European Aeronautics Science Network Workshop, Aachen, Germany, October 27 to 29, 2014
12. Gagnon, L.*, Morandini, M., Quaranta, G., Muscarello, V., Masarati, P., Bindolino, G., Xisto, C.M., Páscoa, J.C., « Feasibility assessment: a cycloidal rotor to replace conventional helicopter technology », 40th European Rotorcraft Forum, Southampton, UK, September 2 to 4, 2014
11. Xisto, C.M.*, Páscoa, J.C., Abdollahzadeh, M., Leger, J.A., Masarati, P., Gagnon, L., Schwaiger, M., and Wills, D., « PECyT - Plasma Enhanced Cycloidal Thruster », AIAA Modeling and Simulation Conference, Cleaveland, Ohio, July 28 to 30, 2014
10. Xisto, C.M.*, Páscoa, J.C., Leger, J.A., Masarati, P., Quaranta, G. Morandini, M., Gagnon, L., Wills, D., and Schwaiger, M., « Numerical modelling of geometrical effects in the performance of a cycloidal rotor », 6th European Conference on Computational Fluid Dynamics, Barcelona, Spain, July 20 to 25, 2014
9. Gagnon, L., Quaranta, G., Morandini, M., Masarati, P.*, Lanz, M., Xisto, C.M., Páscoa, J.C., « Aerodynamic and Aeroelastic Analysis of a Cycloidal Rotor », 44th AIAA Fluid Dynamics Conference, Atlanta, Georgia, June 16 to 20, 2014
8. Gagnon, L.*, Morandini, M., Quaranta, G., Muscarello, V., Bindolino, G., and Masarati, P., « Cyclogyro Thrust Vectoring for Anti-Torque and Control of Helicopters », 70th American Helicopter Society Forum, Montréal, Canada, May 20 to 22, 2014
7. Gagnon, L.*, « Un nouvel outil d'analyse mécanique du profil longitudinal d'une route », presentation only, 48e congrès de l'AQTr, Montréal, Canada, March 25 to 27, 2013
6. Gagnon, L.*, Richard, M.J., Beardsell, G., and Boudreau, M., « The Process of Making an Aerodynamically Efficient Car Body for the SAE Supermileage Competition », SAE Technical Paper 2012-01-0176, 2012, doi: 10.4271/2012-01-0176
5. Gagnon, L., Richard, M.J., Masarati, P.*, Morandini, M., and Doré, G., « Multibody simulation of tires operating on an uneven road », poster and paper, Multibody Dynamics 2011, Brussels, Belgium, July 4 to 7, 2011
4. Gagnon, L.* and Richard, M.J., « Parallel CFD of a prototype car with OpenFOAM », OpenFOAM Workshop 5, Göteborg, Sweden, June 21 to 24, 2010
3. Gagnon, L.*, Richard, M.J., and Lévesque, B., « Capturing vortex energy from the flow on the Ahmed car », COBEM 2009, Gramado-RS, Brazil, Nov. 15 to 20, 2009
2. Gagnon, L.*, Richard, M.J., and Lévesque, B., « Using OpenFOAM to model energy taken from the swirl behind a car », OpenFOAM Workshop 4, Montréal, June 1 to 4, 2009
1. Gagnon, L.*, Richard, M.J., and Lévesque, B., « Recapturing energy from a vortex behind the Ahmed car using a paddle wheel », CASI-AERO 2009 Conference, Ottawa, May 5 to 7, 2009
*: presenter
vulgarisation // popularization
Gagnon, L., Richard, M.J., Doré, G., Masarati P., and Morandini, M. « Semi simulation : A multibody tire model for measuring energy dissipation and evaluating the dynamic response of a semi-trailer truck to uneven road conditions », Tire Technology International, March 2015
Gagnon, L., Richard, M.J., Beardsell, G., and Boudreau, M., « Shed a Few Joules with Better Aerodynamics », SAE Momentum, 3(5):4-6, 2012
Gagnon, L., Richard, M.J., and Doré, G, « L'influence de l'uni de la route sur l'efficacité du transport », Via Bitume, 6(1):43-45, 2011
séminaires // seminars
« Fortschritt im Bereich Cycloidal Rotoren », Doktorandenseminar, University Stuttgart, Germany, 19 July 2022
« A Novel and Simple Aircraft Requiring Minimal Power to Hover: Folge 2 », Doktorandenseminar, University Stuttgart, Germany, 20 July 2021
« A Novel and Simple Aircraft Requiring Minimal Power to Hover », Doktorandenseminar, University Stuttgart, Germany, 3 December 2019
« Create and optimize a path following drone with MBDyn, Dakota, and Octave », hands-on session, 1st Chrono-MBDyn User Meeting, Parma, Italy, April 19 to 21, 2017
« Studying tires, roads, and cycloidal rotors with multibody dynamics », Politecnico di Milano, Italy, Jan 22, 2015
Invited lecture in the « Multibody System Dynamics » PhD course, Politecnico di Milano, Italy, November 2015
blogs
Cycloidal Rotor 3D CFD Simulation
Google Summer of Code 2017 wrap-up for MBDyn
Exporting optimization constraints and gradients from SageMath to C++
Converting SageMath equation notation to Latex math notation (external link)
Finding the area and center of mass of NACA 4 number symmetric airfoils
Google Summer of Code 2015 wrap-up for MBDyn