Professor, Director of State ley laboratory of Turbulence at Peking University, China
Cunbiao Lee is a distinguished expert in hypersonic boundary-layer transitions, currently serving as the director of the State Key Laboratory for Turbulence & Complex Systems at Peking University 🇨🇳. His work focuses on fluid mechanics, especially in extreme aerodynamic conditions. Renowned for pioneering advanced diagnostic tools like temperature-sensitive paint and near-wall particle image velocimetry, he provides deep insights into the complex instabilities in hypersonic flow fields 🌪️📸. With over 100 technical papers and invited talks, Lee has significantly influenced the understanding of aerodynamic heating and nonlinear instability interactions in near-space environments 🌌. His work spans various flow configurations including flat plates, sharp cones, and delta wings ✈️. As a visionary scientist, he has contributed to national-scale projects, including the development of hypersonic quiet wind tunnels. A member of the AIAA and an associate editor of the AIAA Journal, Lee continues to drive innovation in experimental and theoretical fluid dynamics 🔬📘.
Professional Profile
Scopus
Education 🎓📘
Cunbiao Lee’s academic journey in aerospace sciences reflects his enduring dedication to fluid mechanics. He earned his undergraduate degree from Nanjing University of Aeronautics and Astronautics in 1984 🛩️. His passion for high-speed aerodynamics led him to complete a master’s degree from the Institute of Mechanics at the Chinese Academy of Sciences in 1990 🧪. He further pursued a Ph.D. in Aerospace Engineering from Beijing University of Aeronautics and Astronautics in 1995 🎓. His education laid the foundation for his expertise in turbulent flows, boundary-layer behavior, and nonlinear wave dynamics. With rigorous training across China’s top scientific institutions, Lee cultivated an exceptional grasp of theoretical and experimental mechanics. His multi-tiered education reflects not only academic excellence but also a progressive specialization in aerothermodynamics and hypersonic flow studies 🌬️🔥—essential domains in advancing aerospace technologies.
Professional Experience 🧑🏫🔧
Cunbiao Lee’s professional trajectory is marked by ascending academic excellence and national scientific leadership. After completing his Ph.D., he began a postdoctoral fellowship in 1995 at the Institute of Atmospheric Physics at the Chinese Academy of Sciences 🌦️. In 1998, he joined Tsinghua University as an associate professor, gaining recognition for his expertise in turbulent flow and instability physics 💡. His transition to Peking University in 2001 as a full professor marked a pivotal moment, where he became instrumental in developing China’s hypersonic wind tunnel research capabilities 🌪️. As director of the State Key Laboratory for Turbulence & Complex Systems, Lee has steered breakthrough projects, especially in experimental aerodynamics. His international presence includes over 100 invited talks and editor roles at Physics of Fluids and AIAA Journal 📚. His experience blends academic leadership, technical innovation, and national service on science advisory committees 🏛️🧑🔬.
Research Interests 🔬🌐
Cunbiao Lee’s research is at the forefront of hypersonic flow science and nonlinear wave dynamics. His core focus is on the transition processes in the hypersonic boundary layer—an area critical for designing high-speed aircraft and space vehicles 🚀🌀. His studies explore instability mechanisms, mode interactions, and aerodynamic heating principles that govern flow behavior under extreme conditions 🌡️📈. Lee has pioneered visualization and diagnostic techniques such as Rayleigh-scattering, infrared thermography, and near-wall PIV to decode complex flow fields 🖼️🧊. He explores transitions over various geometries—sharp cones, flared cones, flat plates, and delta wings—offering a comprehensive understanding of structural flow evolution ✈️. Lee’s contributions extend to novel instability mode phase-locking theories and nonlinear wave coupling, impacting both theoretical frameworks and practical designs for hypersonic vehicles. His multidimensional research influences experimental setups, computational models, and aerospace safety protocols 🧩⚙️.
Awards and Honors 🏅
Cunbiao Lee’s trailblazing research has garnered significant national and international recognition. In 2005, he received the prestigious National Outstanding Young Scientist Award from the Chinese government—a testament to his scientific excellence and innovative contributions 🥇📊. His leadership at the State Key Laboratory has placed him at the helm of several national research initiatives, particularly in the strategic domain of hypersonic flow dynamics. Lee serves on editorial boards of top-tier journals, including Physics of Fluids and Experiments in Fluids, and currently holds an associate editor position at the AIAA Journal 📘✍️. He is a long-standing member of the American Institute of Aeronautics and Astronautics (AIAA), representing China in global aerospace dialogues 🌍✈️. Lee’s career is a blend of academic rigor and national service, underlined by his involvement in science policymaking and research infrastructure development across China’s aerospace landscape 🏛️🧠.
Publications Top Notes
1. Measurement of the Second-mode’s Propagation Velocity in the Hypersonic Boundary Layers of a Flared Cone with Dual-frame Focusing Schlieren and Optical Flow Velocimetry
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Authors: Xiaolong Wang, Bo Zhou, Zhixin Zhao, Puyuan Wu, Cunbiao Lee
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Year: 2025
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Source: Aerospace Science and Technology
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Summary: This study utilizes dual-frame focusing schlieren and optical flow velocimetry to measure the propagation velocity of second-mode waves in hypersonic boundary layers over a flared cone. The approach offers high-resolution insights into wave behavior, enhancing understanding of boundary layer stability in hypersonic flows.
2. Experimental and Numerical Investigation of Turbulent Spots in a Flat Plate Boundary Layer
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Authors: Ning Hu, Yiding Zhu, Cunbiao Lee, Charles R. Smith
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Year: 2025
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Source: Journal of Fluid Mechanics
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Summary: The paper examines the evolution of turbulent spots in a flat plate boundary layer using time-resolved tomographic particle image velocimetry (Tomo-PIV) and direct numerical simulations (DNS). It provides detailed insights into the flow structures and their development, contributing to the understanding of transition mechanisms in boundary layers.
3. Self-organized Oblique Waves Upstream of the Leading Edge of a Flat Plate
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Authors: Congrui Yang, Zhenghao Feng, Cunbiao Lee
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Year: 2025
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Source: Physics of Fluids
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Summary: This study reports the first observation of self-organized oblique waves forming upstream of the leading edge of a flat plate. The findings reveal new aspects of flow behavior that could influence the design and analysis of aerodynamic surfaces.
4. Three-dimensional Wave Structure Within the Puff of Pipe Flow
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Authors: Puyuan Wu, Dingwei Gu, Xianyang Jiang, Cunbiao Lee
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Year: 2025
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Source: Physics of Fluids
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Summary: Through direct numerical simulations, this paper investigates the three-dimensional wave structures within puffs in pipe flow at various Reynolds numbers. The study enhances the understanding of transitional flow dynamics in pipe systems.
5. Internal Structures of Turbulent Spots
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Authors: Ning Hu, Bingyin Du, Cunbiao Lee
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Year: 2025
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Citations: 2
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Source: Physics of Fluids
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Summary: The research uncovers soliton-like coherent structures within turbulent spots, acting as three-dimensional waves that induce wave-like peaks on material surfaces. These findings provide deeper insights into the complexity of turbulent spot structures.
6. Investigation of an Overlap of Heating Peaks in the Hypersonic Boundary Layer Over a Blunt Cone
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Authors: Zhenghao Feng, Chong Cai, Cunbiao Lee, Daoning Yang
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Year: 2024
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Citations: 2
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Source: Physical Review Fluids
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Summary: This study reports the experimental observation of overlapping heating peaks in a Mach 6 hypersonic boundary layer over a slightly blunted cone. The findings suggest that small nose bluntness can delay but not eliminate the evolution of second-mode instabilities, affecting thermal loads on hypersonic vehicles.
7. Exploring the Boundary Layer Transition of Hypersonic Flow Over a Compound Delta Wing
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Authors: Habib Ullah, Hongtian Qiu, Ganglong Yu, Muhammad Ijaz Khan, Cunbiao Lee
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Year: 2024
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Citations: 1
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Source: Physics of Fluids
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Summary: The paper investigates the boundary layer transition on a compound delta wing at Mach 6 through experimental and numerical methods. The study identifies the onset of traveling cross-flow vortices near the leading edge, contributing to the understanding of transition mechanisms in complex wing geometries.
8. Boundary Layer Transition of Hypersonic Flow Over a Delta Wing
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Authors: Hongtian Qiu, Mingtao Shi, Yiding Zhu, Cunbiao Lee
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Year: 2024
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Citations: 3
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Source: Journal of Fluid Mechanics
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Summary: This study systematically examines cross-flow transition over a delta wing in a Mach 6.5 hypersonic wind tunnel using Rayleigh scattering flow visualization, high-speed schlieren, and pressure sensors. The research identifies three unstable modes contributing to the transition process.
9. An Effective Control Strategy for Transitional Hypersonic Boundary Layers
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Authors: Jiaming Yu, Wangqiao Chen, Xun Huang, Yiding Zhu, Cunbiao Lee
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Year: 2023
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Citations: 3
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Source: Physics of Fluids
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Summary: The paper presents a control strategy using grooved wavy walls covered with an acoustically transparent film to reduce aerodynamic heating in transitional hypersonic boundary layers. The approach effectively delays transition by suppressing the growth of Mack’s second mode.
10. The Dynamic Feedback Cycle of the Two-dimensional Kármán Vortex Street
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Authors: Yanming Hao, Cunbiao Lee, Qingdong Cai
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Year: 2023
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Citations: 3
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Source: Physics of Fluids
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Summary: This study analyzes the complete process of generation, development, and maintenance of the two-dimensional Kármán vortex street through numerical simulations. It explores the feedback mechanisms involved in the vortex street’s dynamics.
Conclusion 🌟🧭
Cunbiao Lee is a pioneering force in the realm of hypersonic boundary-layer transition research. His academic pedigree, spanning China’s elite institutions, and his impactful leadership roles illustrate a career defined by excellence, innovation, and service 🌐🔍. Through groundbreaking experimental techniques and deep theoretical insight, Lee has advanced our understanding of complex flow instabilities that shape next-generation aerospace systems 🚀💡. His contributions to diagnostic methodologies and wind tunnel development have positioned China at the forefront of hypersonic research. Beyond the laboratory, Lee plays a crucial role in mentoring young scientists and shaping national aeronautics policy. With an international scholarly presence and a sustained commitment to scientific excellence, Cunbiao Lee exemplifies the modern researcher—driven by curiosity, grounded in discipline, and dedicated to solving the challenges of high-speed flight and turbulent transition dynamics 🛫📚. His work continues to inspire and propel the boundaries of aerospace engineering.