Publications
Google Scholar: https://scholar.google.com/citations?user=bIPx33MgXdsC&hl=en
Scopus: https://www.scopus.com/authid/detail.uri?authorId=24479434200
Journal Publications (* indicates students of Prof. Lee)
- J. Sagaga* and S. Lee, “High-Fidelity Computational Study of Aerodynamic Noise of Side-by-Side Rotor in Full Configuration”, under review, 2023.
- J. Shum* and S. Lee, “Computational Study of Airfoil Design Parameters and Sensitivity Analysis for Dynamic Stall under Pitching Motion”, under review, 2023.
- D. Kang* and S. Lee, “Effect of Boundary-Layer Tripping on Airfoil Noise in Numerical Simulations”, under review, 2023.
- S. Li* and S. Lee, “Analytic Prediction of Rotor Broadband Noise with Serrated Trailing Edges with Applications to Urban Air Mobility Aircraft,” under review, 2023.
- J. Sagaga* and S. Lee, “Performance, Aerodynamics, and Aeroacoustics of Side-by-Side Air Taxi Rotors in Hover Using High-Fidelity CFD”, AIAA Journal, accepted for publication, 2023.
- D. Kang*, S. Lee, D, Brouzet, and S. K. Lele, “Wavelet-based Pressure Decomposition for Airfoil Noise in Low-Mach Number Flows”, Physics of Fluids, Vol. 35 (7), pp. 075112, 2023. (Invited) [link]
- S. Lee, D. Kang*, D, Brouzet, and S. K. Lele, “Airfoil Trailing-Edge Noise Source Identification Using Large-Eddy Simulation and Wavelet Transform”, Center for Turbulence Research, Proceedings of the Summer Program, 2022. [link]
- J. Batther* and S. Lee, “Numerical Investigation of Dynamic Stall Using Delayed Detached Eddy Simulations”, Computers and Fluids, Vol. 249, pp. 105691, 2022. [link]
- H. Gill* and S. Lee, “Effect of 2D Ice Accretion on Turbulent Boundary Layer and Trailing-Edge Noise”, International Journal of Aeroacoustics, Vol. 21 (3-4), 2022, pp. 260-285. [link]
- S. Li* and S. Lee, “Acoustic Analysis and Sound Quality Assessment of a Quiet Helicopter for Air Taxi Operations”, Journal of the American Helicopter Society, Vol. 67, pp. 032001, 2022. [link]
- Z. Jia* and S. Lee, “High-Fidelity Computational Analysis on the Noise of a Side-by-Side Hybrid VTOL Aircraft,” Journal of the American Helicopter Society, Vol. 67, pp. 022005, 2022. [link]
- C. Liu* and S. Lee, “Parametric Airfoil Design and Sensitivity Analysis for Turbulent Boundary Layer Trailing-Edge Noise Reduction,” AIAA Journal, Vol. 60 (4), 2022, pp. 2324-2341. [link]
- Z. Jia* and S. Lee, “Computational Study on Noise of Urban Air Mobility Quadrotor Aircraft,” Journal of the American Helicopter Society, Vol. 67, pp. 012009, 2022. [link]
- S. Lee, L. Ayton, F. Bertagnolio, S. Moreau, T. P. Chong, and P. Joseph, “Turbulent Boundary Layer Trailing-Edge Noise: Theory, Computation, Experiment, and Application,” Progress in Aerospace Sciences, Vol. 126, pp. 100737, 2021. [link]
- S. Li* and S. Lee, “Prediction of Urban Air Mobility Multi-Rotor VTOL Broadband Noise Using UCD-QuietFly,” Journal of the American Helicopter Society, Vol. 66, pp. 032004, 2021. [link]
- Z. Jia* and S. Lee, “Aerodynamically Induced Noise of a Lift-Offset Coaxial Rotor with Pitch Attitude in High-Speed Forward Flight,” Journal of Sound and Vibration, Vol. 491, pp. 115737, 2021. [link]
- S. Li* and S. Lee, “Prediction of Rotorcraft Broadband Trailing-Edge Noise and Parameter Sensitivity Study,” Journal of the American Helicopter Society, 65, 042006, 2020. [link]
- S. Lee and M. Dassonville*, “Iterative Blade Element Momentum Theory for Predicting Coaxial Rotor Performance in Hover,” Journal of the American Helicopter Society, 65, 042005, 2020. [link]
- Y. Shi* and S. Lee, “Numerical Study of 3-D Finlets Using RANS CFD for Trailing Edge Noise Reduction,” International Journal of Aeroacoustics, Vol. 19 (1-2), 2020. pp. 95-118. [link]
- Z. Jia*, S. Lee, K. Sharma and K.S. Brentner, “Aeroacoustic Analysis of a Lift-Offset Coaxial Rotor Using High-Fidelity CFD/CSD Loose Coupling Simulation,” Journal of the American Helicopter Society, 65, 012011, 2020. [link]
- Z. Jia* and S. Lee, “Impulsive Loading Noise of a Lift-Offset Coaxial Rotor in High-Speed Forward Flight,” AIAA Journal, Vol. 58 (2), February, 2020. pp. 687-701. [link]
- Y. Shi* and S. Lee, “Airfoil Trailing Edge Noise Reduction Using a Boundary-Layer Bump,”Acta Acustica united with Acustica, Vol. 105 (5), 2019, pp. 814-826. [link]
- D. Qin*, G. Pan, S. Lee, Q. Huang and Y. Shi, “Underwater Radiated Noise Reduction Technology Using Sawtooth Duct for Pumpjet Propulsor,” Ocean Engineering, Vol. 188, 2019, pp. 106228 (15 pages). [link]
- P. Wei, S.N. Chan, S. Lee and Z. Kong, “Mitigating Ground Effect on Mini Quadcopters with Model Reference Adaptive Control,” International Journal of Intelligent Robotics and Applications, Vol. 3 (3), 2019, pp. 283-297. [link]
- S. Lee, “The Effect of Airfoil Shape on Trailing Edge Noise,” Journal of Theoretical and Computational Acoustics, Vol. 27 (2), 2019, pp. 1850020 (26 pages) [link]
- S. Lee and J.G. Shum*, “Prediction of Airfoil Trailing Edge Noise Using Empirical Wall Pressure Spectrum Models,” AIAA Journal, Vol. 57 (3), March, 2019, pp. 888-897. [link]
- S. Lee, “Empirical Wall-Pressure Spectral Modeling for Zero and Adverse Pressure Gradient Flows,” AIAA Journal, Vol. 56 (5), May, 2018, pp. 1818-1829. [link]
- S. Lee, K.S. Brentner and P.J. Morris, “Long-Range and Nonlinear Propagation of Helicopter High-Speed Impulsive Noise,” Journal of the American Helicopter Society, Vol. 62 (2), April-June, 2017, pp. 022007 (10 pages). [link]
- S. Lee, “Review: The Use of Equivalent Source Method in Computational Acoustics,” Journal of Computational Acoustics, Vol. 25 (1), March. 2017, pp. 1630001 (19 pages). [link]
- S. Lee, D. Lee and S. Honhoff, “Prediction of Far-Field Wind Turbine Noise Propagation with Parabolic Equation,” Journal of the Acoustical Society of America, Vol. 140 (2), Aug. 2016, pp. 767-778. [link]
- S. Lee and K.S. Brentner, “Comment on Acoustic Pressure Gradient and Velocity Formulations,” AIAA Journal, Vol. 54 (5), May 2016, pp. 1809-1810. [link]
- S. Lee, “Inverse Design of Horizontal Axis Wind Turbine Blades Using a Vortex Line Method,” Wind Energy, Vol. 18 (2), Feb. 2015, pp. 253-266. [link]
- S. Lee, K.S. Brentner and P.J. Morris, “Time-domain Approach for Acoustic Scattering of Rotorcraft Noise,” Journal of the American Helicopter Society, Vol. 57 (4), Oct-Dec. 2012, pp. 1-12 (12). [link]
- S. Lee, K.S. Brentner and P.J. Morris, “Assessment of Time-Domain Equivalent Source Method for Acoustic Scattering,” AIAA Journal, Vol. 49 (9), Sep. 2011, pp. 1897-1906. [link]
- S. Lee, K.S. Brentner and P.J. Morris, “Acoustic Scattering in the Time Domain Using an Equivalent Source Method,” AIAA Journal, Vol. 48 (12), Dec. 2010, pp. 2772-2780. [link]
- S. Lee, P.J. Morris and K.S. Brentner, “Improved Algorithm for Nonlinear Sound Propagation with Aircraft and Helicopter Noise Applications,” AIAA Journal, Vol. 48 (11), Nov. 2010, pp. 2586-2595. [link]
- S. Lee, J.P. Erwin and K.S. Brentner, “A Method to Predict Acoustic Scattering of Rotorcraft Noise,” Journal of the American Helicopter Society, Vol. 54 (4), Oct-Dec. 2009, 042007. [link]
- S. Y. Wie, S. Lee, and D.J. Lee, “Potential Panel and Time-Marching Free-Wake Coupling Analysis for Helicopter Rotor,” Journal of Aircraft, Vol. 46 (3), May-June 2009, pp. 1030-1041. [link]
- S. Lee, K.S. Brentner, F. Farassat and P.J. Morris, “Analytic Formulation and Numerical Implementation of an Acoustic Pressure Gradient Prediction,” Journal of Sound and Vibration, Vol. 319 (3-5), Jan. 2009, pp. 1200-1221. [link]
Peer-Reviewed Conference Proceedings (* indicates students of Prof. Lee)
- T. Ramsarran, K.S. Brentner, N. Trembois*, E. Brown*, and S. Lee, “Evaluating Propeller-Wing Interactional Noise Predictions from a Medium-Fidelity Approach”, 6th Decennial VFS Aeromechanics Specialists’ Conference, Santa Clara, California, February 6-8, 2024.
- D. Kang* and S. Lee, “A New Acoustic Source Identification and Visualization Method for Airfoil Noise Using Large-Eddy Simulations,” AIAA SciTech, Orlando, Florida, January 8-12, 2024.
- M. Ruh, A. Fletcher, D. Sarojini, M. Sperry, J. Yan, L. Scotzniovsky, S. van Schie, M. Warner, N. Orndorff, R. Xiang, A. Joshy, H. Zhao, J. Krokowski, H. Gill*, S. Lee, Z. Cheng, Z. Cao, C. Mi, C. Silva, L. Wolfe, J. Chen, and J. Hwang, “Large-scale Multidisciplinary Design Optimization of a NASA Air Taxi Concept Using a Comprehensive Physics-based System Model ,” AIAA SciTech, Orlando, Florida, January 8-12, 2024.
- H. Gill* and S. Lee, “Development of New Empirical Rotor Broadband Noise Prediction Models for Urban Air Mobility Applications,” AIAA SciTech, Orlando, Florida, January 8-12, 2024.
- J. Miranda* and S. Lee, “Community Noise Impact of Urban Air Mobility Aircraft with Noise Propagation Effects,” AIAA Aviation Forum, San Diego, California, June 12-16, 2023. [link]
- D. Kang* and S. Lee, “A Revisit of Amiet’s Trailing-edge Noise Theory through Large-Eddy Simulations,” AIAA Aviation Forum, San Diego, California, June 12-16, 2023. (Selected as one of the top 5 best student papers in the aeroacoustics conference) [link]
- J. Sagaga* and S. Lee, “Acoustic Predictions for Side-by-Side Air Taxi in Full Configuration,” AIAA Aviation Forum, San Diego, California, June 12-16, 2023. [link]
- J. Shum* and S. Lee, “Numerical Investigation of the Effect of Trailing-Edge Morphing on Dynamic Stall using Delayed Detached Eddy Simulation,” AIAA Aviation Forum, San Diego, California, June 12-16, 2023. [link]
- J. Won* and S. Lee, “Towards Accurate Broadband Noise Predictions Using CFD”, 79th VFS International Annual Forum, West Palm Beach, Florida, May 16-18, 2023. [link]
- J. Sagaga* and S. Lee, “Acoustic Predictions for Side-by-Side Rotor with Ground Effect”, 79th VFS International Annual Forum, West Palm Beach, Florida, May 16-18, 2023. [link]
- N. Trembois*, S. Lee, T. Ramsarran, and K.S. Brentner, “Prediction of Interactional Aerodynamic Noise of Propellers and Wing Using High-Fidelity
CFD”, 79th VFS International Annual Forum, West Palm Beach, Florida, May 16-18, 2023. [link] - N. Orndorff, M. Sperry, L. Scotzniovsky, H. Gill*, D. Sarojini, J. Hwang, S. Lee, Z. Cheng, S. Zhao, and C. Mi, “Air-taxi Transition Trajectory Optimization Using Physics-based Aerodynamic, Acoustic, and Motor Models “, AIAA SciTech, National Harbor, MD, January 23-27, 2023. [link]
- D. Sarojini, M, Ruh, A.J. Joshy, J. Yan, A. Ivanov, L. Scotzniovsky, A. Fletcher, N. Orndorff, M. Sperry, V. Gandarillas, I. Asher, J. Chambers, H. Gill*, S. Lee, Z. Cheng, G. Rodrigues, S. Zhao, C. Mi, T. Nascenzi, T. Cuatt, T. Winter, A. Guibert, A. Cronk, H. Kim, S. Meng, and J. Hwang, “Large-Scale Multidisciplinary Design Optimization of an eVTOL Aircraft using Comprehensive Analysis”, AIAA SciTech, National Harbor, MD, January 23-27, 2023. [link]
- H. Gill*, S. Lee, M. Ruh, and J. Hwang, “Applicability of Low-Fidelity Tonal and Broadband Noise Models on Small-Scaled Rotors”, AIAA SciTech, National Harbor, MD, January 23-27, 2023. [link]
- D. Kang* and S. Lee, “On the Effect of Boundary-layer Tripping for Trailing-edge Noise Predictions”, AIAA SciTech, National Harbor, MD, January 23-27, 2023. [link]
- J. Shum* and S. Lee, “Effect of Airfoil Design Parameters on Deep Dynamic Stall under Pitching Motion”, AIAA SciTech, National Harbor, MD, January 23-27, 2023. [link]
- D. Kang* and S. Lee, “Assessment of Wavelet-based Separation Algorithms on Turbulent Boundary Layer Trailing-Edge Noise Prediction,” 11th International Conference on Computational Fluid Dynamics (ICCFD11), Maui, Hawaii, July 11-15, 2022. [link]
- S. Li* and S. Lee, “Extensions and Applications of Lyu and Ayton’s Serrated Trailing-Edge Noise Model to Rotorcraft,” 28th AIAA/CEAS Aeroacoustics Conference, Southampton, UK, June 14-17, 2022. [link]
- D. Kang* and S. Lee, “Application of Wavelet Analysis to Trailing-Edge Noise,” 28th AIAA/CEAS Aeroacoustics Conference, Southampton, UK, June 14-17, 2022. [link]
- J. Batther* and S. Lee, “Investigation of Dynamic Stall Leading-Edge Flow Features at a Low Transitional Reynolds Number”, 78th VFS International Annual Forum, Fort Worth, Texas, May 10-14, 2022. [link]
- S. Li* and S. Lee, “Analytic Prediction of Rotor Broadband Noise with Serrated Trailing Edges”, 78th VFS International Annual Forum, Fort Worth, Texas, May 10-14, 2022. (Nominated for the best paper in the acoustic session) [link]
- H. Gill* and S. Lee, “Trailing-Edge Noise Predictions of Rotorcraft Airfoils”, 78th VFS International Annual Forum, Fort Worth, Texas, May 10-14, 2022. [link]
- S. Li* and S. Lee, “Predictions and Validations of Small-Scale Rotor Noise Using UCD-QuietFly,” VFS Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA., Jan. 25-27, 2022. [link]
- H. Gill* and S. Lee, “Effect of 2D Ice Accretion on Trailing-Edge Noise,” 27th AIAA/CEAS Aeroacoustics Conference, Virtual Event, August 2-6, 2021. [link]
- J. Sagaga* and S. Lee, “Acoustic Predictions for the Side-by-Side Air Taxi Rotor in Hover,” 77th VFS International Annual Forum, Virtual Event, May 10-14, 2021. (Nominated for the best paper in the acoustic session) [link]
- S. Li* and S. Lee, “Acoustics Analysis of a Quiet Helicopter for Air Taxi Operations,” 77th VFS International Annual Forum, Virtual Event, May 10-14, 2021. (Selected as the best paper in the acoustics session) [link]
- S. Lee and I. Shlesinger*, “Coaxial Rotor Broadband Noise Prediction in Hover,” 76th VFS International Annual Forum, Virginia Beach, Virginia, October 6-8, 2020 [link][presentation]
- Z. Jia* and S. Lee, “Aeroacoustic Analysis of a Side-by-Side Hybrid VTOL Aircraft,” 76th VFS International Annual Forum, Virginia Beach, Virginia, October 6-8, 2020 [link][presentation]
- C. Liu* and S. Lee, “Surrogate-Based Optimization for Airfoil Trailing-Edge Noise Reduction Using Morphed Trailing-Edge Shapes,” Inter-noise 2020, Seoul, Korea, August 23-26, 2020 [link][presentation]
- C. Liu* and S. Lee, “Parametric Airfoil Design for Trailing-Edge Noise Reduction,” 26th AIAA/CEAS Aeroacoustics Conference, Virtual Event, June 15-19, 2020 (Selected as one of the top 5 best student papers in the aeroacoustics conference) [link][presentation]
- S. Li* and S. Lee, “A Machine Learning-Based Fast Prediction of Rotorcraft Broadband Noise,” 26th AIAA/CEAS Aeroacoustics Conference, Virtual Event, June 15-19, 2020 [link][presentation]
- J. Shum* and S. Lee, “Computational Fluid Dynamics Best Practices for 2D Dynamic Stall Predictions,” AIAA Fluid Dynamics Conference, Virtual Event, June 15-19, 2020 [link][presentation]
- J. Sagaga* and S. Lee, “CFD Hover Predictions for the Side-by-Side Urban Air Taxi Concept Rotor,” AIAA Applied Aerodynamics Conference, Virtual Event, June 15-19, 2020 [link][presentation]
- Z. Jia* and S. Lee, “Acoustic Analysis of Urban Air Mobility Quadrotor Aircraft,” Vertical Flight Society (VFS) Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA., Jan. 20-23, 2020 [link] [presentation]
- S. Li* and S. Lee, “UCD-QuietFly: A New Program to Predict Multi-Rotor eVTOL Broadband Noise,” Vertical Flight Society (VFS) Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA., Jan. 20-23, 2020 [link] [presentation]
- K. Sharma, K.S. Brentner, Z. Jia* and S. Lee, and P. Anusonti-Inthra, “Aeroacoustic Predictions of Free-Wake, Vortex Particle Method, and Computational Fluid Dynamics for a Coaxial Rotor System,” Vertical Flight Society (VFS) Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA., Jan. 20-23, 2020 [link]
- Z. Jia* and S. Lee, “Acoustic Analysis of a Quadrotor eVTOL Design via High-Fidelity Simulations,” 25th AIAA/CEAS Aeroacoustics Conference, Delft, Netherlands, May 20-24, 2019 [link] [presentation]
- Y. Shi* and S. Lee, “Numerical Study of 3-D Finlets Using RANS CFD for Trailing Edge Noise Reduction,” 25th AIAA/CEAS Aeroacoustics Conference, Delft, Netherlands, May 20-24, 2019 [link] [presentation]
- S. Li* and S. Lee, “Prediction of Rotorcraft Broadband Trailing-Edge Noise and Parameter Sensitivity Study,” 75th VFS International Annual Forum, Philadelphia, PA., May 13-19, 2019 [link] [presentation]
- S. Lee and M. Dassonville*, “Iterative Blade Element Momentum Theory for a Coaxial Rotor,” 75th VFS International Annual Forum, Philadelphia, PA., May 13-19, 2019 [link] [presentation]
- Z. Jia*, S. Lee, K. Sharma, and K.S. Brentner, “Effect of Pitch Attitude on the Performance and Acoustics of a Lift-Offset Coaxial Rotor Based on High-Fidelity CFD/CSD Simulations,” 75th VFS International Annual Forum, Philadelphia, PA., May 13-19, 2019 [link] [presentation]
- K. Sharma, K.S. Brentner, Z. Jia* and S. Lee, “Aeroacoustic Study of Coaxial Rotor under Varying Trim Conditions and Rotor Orientations using Free Wake Analysis,” 75th VFS International Annual Forum, Philadelphia, PA., May 13-19, 2019 [link]
- Z. Jia* and S. Lee, “Acoustics of a Lift-Offset Coaxial Rotor in High-Speed Forward Flight Based on High-Fidelity CFD/CSD Loose Coupling Simulations,” 7th Asian/Australian Rotorcraft Forum, Jeju, Korea, Oct 30 – Nov 1, 2018 [link]
- Z. Jia*, S. Lee, and K.S. Brentner, “Assessment of Turbulence Modeling and Wake-Grid Resolution for Lift-Offset Coaxial Rotor Simulations,” AIAA Paper 2018-4120, AIAA Applied Aerodynamics Conference, Atlanta, GA., June 25-29, 2018 [link]
- D.H. Nguyen* and S. Lee, “Investigation on the Accuracy of the TNO Model Using RANS CFD and XFOIL Inputs for Airfoil Trailing Edge Noise Predictions,” AIAA Paper 2018-2811, 24th AIAA/CEAS Aeroacoustics Conference, Atlanta, GA., June 25-29, 2018 [link]
- Y. Shi* and S. Lee, “Numerical Study of 2-D Finlets Using RANS CFD for Trailing Edge Noise Reduction,” AIAA Paper 2018-2812, 24th AIAA/CEAS Aeroacoustics Conference, Atlanta, GA., June 25-29, 2018 [link]
- S. Lee and J.G. Shum*, “Validation of an Empirical Wall Pressure Spectrum Model for Airfoil Trailing Edge Noise Predictions,” AIAA Paper 2018-3791, 24th AIAA/CEAS Aeroacoustics Conference, Atlanta, GA., June 25-29, 2018 [link]
- Z. Jia*, S. Lee, K. Sharma, and K.S. Brentner, “Aeroacoustic Analysis of a Lift-Offset Coaxial Rotor Using High-Fidelity CFD-CSD Loose Coupling Simulation,” 74th AHS International Annual Forum, Phoenix, AZ., May 14-17, 2018 (Nominated for the best paper in the acoustic session) [link] [presentation]
- S. Lee and A. Villaescusa*, “Comparison and Assessment of Recent Empirical Models for Turbulent Boundary Layer Wall Pressure Spectrum ,” AIAA Paper 2017-3688, 23nd AIAA/CEAS Aeroacoustics Conference, Denver, CO., June 5-9, 2017 [link]
- S. Lee, “Trailing Edge Noise Source Characteristics for Wind Turbine Airfoils,” AIAA Paper 2017-3168, 23nd AIAA/CEAS Aeroacouustics Conference, Denver, CO., June 5-9, 2017 [link]
- P.K. Dhawan* and S. Lee, “Validation and Numerical Parameter Study of a Semi-Empirical Trailing Edge Noise Model,” ICMAE M3039, 7th International Conference on Mechanical and Aerospace Engineering, London, UK, July 18-22, 2016. [link]
- S. Lee, “Source Characterization of Turbulent Boundary Layer Trailing Edge Noise Using an Improved TNO Model,” AIAA Paper 2016-2812, 22nd AIAA/CEAS Aeroacoustics Conference, Lyon, France, May 30-June 1, 2016 [link]
- S. Lee, D. Lee and S. Honhoff, “Prediction of Far-Field Wind Turbine Noise Propagation with Parabolic Equation,” AIAA Paper 2015-2840, 21st AIAA/CEAS Aeroacoustics Conference, Dallas, TX, Jun 22-26, 2015.
- S. Lee, “Inverse Design of Horizontal Axis Wind Turbine Blades Using a Vortex Line Method,” AIAA Paper 2012, 30th ASME Wind Energy Symposium, Nashville, TN, Jan 9-11, 2012.
- S. Lee, K.S. Brentner and P.J. Morris, “Assessment of Time-Domain Equivalent Source Method for Acoustic Scattering,” AIAA Paper 2010-3821, 16th AIAA/CEAS Aeroacoustics Conference, Stockholm, Sweden, June 7-9, 2010.
- S. Lee, K.S. Brentner and P.J. Morris, “Long-Range and Nonlinear Propagation of Helicopter High-Speed Impulsive Noise,” The American Helicopter Society 66th Annual Forum, Phoenix, Arizona, May 11-May 13, 2010.
- S. Lee, P.J. Morris and K.S. Brentner, “Nonlinear Acoustic Propagation Predictions with Applications to Aircraft and Helicopter Noise,” AIAA Paper 2010-1384, 48th AIAA Aerospace Sciences Meeting, Orlando, FL, Jan 4-7, 2010.
- S. Lee, K.S. Brentner and P.J. Morris, “Time-domain Approach for Acoustic Scattering of Rotorcraft Noise,” The American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27-May 29, 2009.
- S. Lee, K.S. Brentner and P.J. Morris, “Prediction of Acoustic Scattering in the Time Domain Using a Moving Equivalent Source Method,” AIAA Paper 2009-3177, 15th AIAA/CEAS Aeroacoustics Conference, Miami, FL, May 11-13, 2009.
- S. Lee, J.P. Erwin and K.S. Brentner, “Acoustic Scattering of Rotorcraft Noise,” The American Helicopter Society 64th Annual Forum, Montreal, QC, Canada, Apr 28-May 1, 2008.
- S.Y. Wie, S. Lee and D.J. Lee, “Numerical Investigation of Rotor Wake in Vertical and Forward Flight,” 4th International Conference on Vortex Flows and Models, Daejeon, Korea, Apr. 21- 23, 2008.
- S. Lee, K.S. Brentner and F. Farassat, ““Analytic Formulation and Numerical Implementation of an Acoustic Pressure Gradient Prediction,” AIAA Paper 2007-3710, 13th AIAA/CEAS Aeroacoustics Conference, Rome, Italy, May 21-23, 2007.
- S. Lee, K.S. Brentner, C. C. Hennes, B. T. Flynt, J. N. Theron and E. P.N. Duque,” Investigation of the Accuracy Requirements of Permeable Surfaces Used in Rotor Noise Prediction,” The American Helicopter Society 62nd Annual Forum, Phoenix, AZ, May 9-11, 2006.
- K.Y. Kim, S. Lee, D.J. Lee, S.H. Hong, and J.S. Choi, ” Noise Prediction of Hovering Tilt Rotor,” The Korean Society of Noise and Vibration Conference, Korea, May, 2005.
- D.J. Lee, S. Lee, W.J. Jeon, J.W.Lee and Y.N. Kim, ” Software Development for Fan Flow and Noise,” The Korean Society of Noise and Vibration Conference, Kyungju, Korea, May, 2004.
- S. Lee, B.S. Kim and D.J. Lee, “Analysis for aerodynamics of airplane wing and rotor blades by coupled vortex ring/doublet panel modeling of wake,” The Korean Society for Aeronautical & Space Sciences Conference, Kyungju, Korea, Nov, 2003.
- H.L. Choi, K.H. Chung, W.J. Jeon, B.S. Kim, S. Lee and D.J. Lee, “Noise Prediction for a Boxed Fan System,” Internoise2003, Cheju, Korea, Aug. 2003
- W.J. Jeon, S. Lee, C.K, Jung and D.J. Lee, “Software development for the analysis of flow/noise by fan,” The Korean Society of Mechanical Engineering Conference, Coex, Korea, 13-14 Nov. 2002.