Luo YongyaoAssociate Professor

Tel: 010-62787969

Email: luoyy@mail.tsinghua.edu.cn

Address: Department of Energy and Power Engineering, Tsinghua University, Beijing, 100084

Education background

1998.9-2002.7 Bachelor, Department of Thermal Engineering, Tsinghua University

2002.9-2005.7 Master, Department of Thermal Engineering, Tsinghua University

2007.9-2010.12 Ph.D, Department of Thermal Engineering, Tsinghua University

Experience

2005.7-2007.8 Assistant Engineer, Department of Thermal Engineering, Tsinghua University

2011.1-2013.2 Post Doctor, Department of Hydraulic Engineering, Tsinghua University

2011.6-2012.6 Post Doctor, Department of Engineering, University of Wollongong

2013.3- Assistant Professor, Department of Thermal Engineering, Tsinghua University

Areas of Research Interests/ Research Projects

Effects of fluid-structure interaction on dynamic characteristics for fluid machinery

Research Status

[1] China Postdoctoral Science Foundation Grant (No. 2012M510439), Study on characteristics of runner dynamic stresses for pump-turbine during starting and shut-down. 2012.1-2013.1

[2] National Natural Science Foundation of China (No.51409148), Study on the effect mechanism of cavitating flowing water to added mass and vibration characteristics of hydroturbine runner. 2015.1-2017.12

[3] National Natural Science Foundation of China (No.51779122), Study on the influence mechanism of cavitation evolution on natural characteristics and dynamic stresses of hydroturbine runners. 2018.1-2021.12

Honors And Awards

[1] Key Technology Research on Operation Stability Improvement of Modern Hydropower System. Grade II Prize of Science and Technology Progress of the Ministry of Education, 2011, ranked 10th.

[2] Key Technology Research on Hydraulic Characteristics and Fatigue Life in Transient Process of the Bulb Turbine. Grad II Prize of Dayu Water Science and Technology of the Ministry of Water Resources, 2012, ranked 3rd.

[3] Teaching Platform Development of Hydroelectric. The Frist Prize of Excellent Teaching Software in Tsinghua University, 2012, ranked 3rd.

[4] Study on Dynamic Characteristics of Fluid-Structure Interaction in Fluid Machinery. Grad II Prize of Dayu Water Science and Technology of the Ministry of Water Resources, 2014, ranked 2nd.

Academic Achievement

[1] Jin F, Luo Y, Wang Z. Research on the Starting-up Process of a Prototype Reversible Pump Turbine with Misaligned Guide Vanes: An Energy Loss Analysis[J]. Energy, 2024, 304: 132219.

[2] Jin F, Luo Y. Research on Pressure Propagation in Long-Distance Water Pipelines for Fault Conditions by VMD and Wavelet Transform[J]. Engineering Failure Analysis, 2024, 165: 108748.

[3] Zhao Q, Luo Y, Cao J, et al. Numerical Simulation on the Dynamic Behavior of the Bolt Connecting the Head-Cover and Stay Ring in Pumped Storage Unit[J]. Journal of Energy Storage, 2024, 80: 110210.

[4] Wu H, Jin F, Luo Y, et al. Suppressing the Vortex Rope Oscillation and Pressure Fluctuations by the Air Admission in Propeller Hydro-Turbine Draft Tube[J]. JOURNAL OF APPLIED FLUID MECHANICS, 2024, 17(1): 219–232.

[5] Song X, Luo Y, Wang Z. Mechanism of the Influence of Sand on the Energy Dissipation inside the Hydraulic Turbine under Sediment Erosion Condition[J]. Energy, 2024, 294: 130794.

[6] Cao J, Luo Y, Liu X, et al. Numerical Theory and Method on the Modal Behavior of a Pump-Turbine Rotor System Considering Gyro-Effect and Added Mass Effect[J]. Journal of Energy Storage, 2024, 85: 111064.

[7] Cao J, Luo Y, Deng L, et al. Thermo-Hydrodynamic Lubrication and Energy Dissipation Mechanism of a Pump-Turbine Thrust Bearing in Load-Rejection Process[J]. Physics of Fluids, 2024, 36(3): 037138.

[8] Zhao Q, Luo Y, Zhai L, et al. Failure Analysis on the Bolt Connecting the Head-Cover and Stay Ring in Pumped Storage Unit: Part Ⅰ-Experimental Study[J]. Engineering Failure Analysis, 2023, 153: 107557.

[9] Song X, Luo Y, Chao L, et al. Numerical Simulation and Experimental Study on an Innovative Vortex Eliminator Using a Modified SST Turbulence Model for Gas-Liquid Two-Phase Flow[J]. Ocean Engineering, 2023, 268: 113383.

[10] Luo Y, Yang G, Cao J, et al. Multibody Dynamics Analysis of a Kaplan Turbine Runner in Full Operating Conditions[J]. Journal of Energy Storage, 2023, 72: 108269.

[11] Luo Y, Cao J, Zhai L, et al. Pressure Pulsation and Dynamic Behavior Analysis of an Ultra-Low Head Bidirectional Rim-Generator Turbine with Special Emphasis on the Gravity Effect[J]. Ocean Engineering, 2023, 286: 115524.

[12] Jin F, Wang H, Luo Y, et al. Visualization Research of Energy Dissipation in a Pump Turbine Unit during Turbine Mode’s Starting Up[J]. Renewable Energy, 2023, 217: 119172.

[13] Jin F, Luo Y, Zhao Q, et al. Energy Loss Analysis of Transition Simulation for a Prototype Reversible Pump Turbine during Load Rejection Process[J]. Energy, 2023, 284: 129216.

[14] Jin F, Luo Y, Wang H, et al. Dynamic Response of a Pump-Turbine Runner during Turbine’s Mode Starting Up[J]. Journal of Energy Storage, 2023, 74: 109339.

[15] Jin F, Luo Y, Bi H, et al. Transient Simulation of Reversible Pump Turbine during Pump Mode’s Starting Up[J]. Journal of Energy Storage, 2023, 68: 107678.

[16] Song X, Luo Y, Wang Z. Numerical Prediction of the Influence of Free Surface Vortex Air-Entrainment on Pump Unit Performance[J]. Ocean Engineering, 2022, 256: 111503.

[17] Luo Y, Tao R, Peng G. Comparative Numerical Study of the Dynamic Motion of OWC Impulse Turbine in the Starting Process[J]. Ocean Engineering, 2022, 245: 110429.

[18] Luo Y, Cao J, Wang Z. Design and Optimization of a Bidirectional Rim-Generator Turbine Runner: Hydraulic Performance Optimization and Structure Strength Evaluation[J]. Ocean Engineering, 2022, 257: 111639.

[19] Cao J, Yang G, Luo Y, et al. Failure Investigation of a Kaplan Turbine Blade Lever[J]. Engineering Failure Analysis, 2022, 142: 106840.

[20] Cao J, Luo Y, Zhuang J, et al. Effect of the Pressure Balance Device on the Flow Characteristics of a Pump-Turbine[J]. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2022, 236(8): 1533–1543.

[21] Cao J, Luo Y, Presas A, et al. Numerical Analysis on the Modal Characteristics of a Pumped Storage Unit Runner in Cavitating Flow[J]. Journal of Energy Storage, 2022, 56: 105998.

[22] Cao J, Luo Y, Presas A, et al. Influence of Rotation on the Modal Characteristics of a Bulb Turbine Unit Rotor[J]. Renewable Energy, 2022, 187: 887–895.

[23] Cao J, Luo Y, Mirza Umar B, et al. Influence of Structural Parameters on the Modal Characteristics of a Francis Runner[J]. Engineering Failure Analysis, 2022, 131: 105853.

[24] Cao J, Luo Y, Mao Z, et al. Dynamic Behavior Analysis of a Cracked Bulb Turbine Rotor Based on Acoustic Fluid-Structural Coupling Method[J]. Engineering Failure Analysis, 2022, 140: 106555.

[25] Luo Y, Presas A, Wang Z, et al. Operating Conditions Leading to Crack Propagation in Turbine Blades of Tidal Barrages. Influence of Head and Operating Mode[J]. Engineering Failure Analysis, 2020, 108: 104254.

[26] Presas A, Luo Y, Wang Z, et al. Fatigue Life Estimation of Francis Turbines Based on Experimental Strain Measurements: Review of the Actual Data and Future Trends[J]. Renewable and Sustainable Energy Reviews, 2019, 102: 96–110.

[27] Zhai L, Luo Y, Liu X, et al. Numerical Simulations for the Fluid-Thermal-Structural Interaction Lubrication in a Tilting Pad Thrust Bearing[J]. Engineering Computations, 2017, 34(4): 1149–1165.

[28] Liming Z, Yongyao L, Zhengwei W, et al. A Review on the Large Tilting Pad Thrust Bearings in the Hydropower Units[J]. Renewable and Sustainable Energy Reviews, 2017, 69: 1182–1198.

[29] Zhai L, Luo Y, Wang Z, et al. Nonlinear Vibration Induced by the Water-Film Whirl and Whip in a Sliding Bearing Rotor System[J]. Chinese Journal of Mechanical Engineering, 2016, 29(2): 260–270.

[30] Liu X, Luo Y, Wang Z. A Review on Fatigue Damage Mechanism in Hydro Turbines[J]. Renewable and Sustainable Energy Reviews, 2016, 54: 1–14.

[31] Liming Z, Yongyao L, Zhengwei W, et al. 3D Two-way Coupled TEHD Analysis on the Lubricating Characteristics of Thrust Bearings in Pump-turbine Units by Combining CFD and FEA[J]. Chinese Journal of Mechanical Engineering, 2016, 29(1): 112–123.

[32] Luo Y, Wang Z, Liu X, et al. Numerical Prediction of Pressure Pulsation for a Low Head Bidirectional Tidal Bulb Turbine[J]. Energy, 2015, 89: 730–738.

[33] Liu X, Luo Y, Karney B W, et al. Virtual Testing for Modal and Damping Ratio Identification of Submerged Structures Using the PolyMAX Algorithm with Two-Way Fluid–Structure Interactions[J]. Journal of Fluids and Structures, 2015, 54: 548–565.

[34] Liu X, Luo Y, Karney B W, et al. A Selected Literature Review of Efficiency Improvements in Hydraulic Turbines[J]. Renewable and Sustainable Energy Reviews, 2015, 51: 18–28.

[35] Luo Y, Wang Z, Peng G, et al. Numerical Simulation of a Heave-Only Floating OWC (Oscillating Water Column) Device[J]. Energy, 2014, 76: 799–806.

[36] Luo Y, Nader J-R, Cooper P, et al. Nonlinear 2D Analysis of the Efficiency of Fixed Oscillating Water Column Wave Energy Converters[J]. Renewable Energy, 2014, 64: 255–265.

[37] Luo Y, Wang Z, Zhang J, et al. Vibration and Fatigue Caused by Pressure Pulsations Originating in the Vaneless Space for a Kaplan Turbine with High Head[J]. Engineering Computations, 2013, 30(3): 448–463.

[38] Luo Y, Wang Z, Zeng J, et al. Fatigue of Piston Rod Caused by Unsteady, Unbalanced, Unsynchronized Blade Torques in a Kaplan Turbine[J]. Engineering Failure Analysis, 2010, 17(1): 192–199.

[39] Luo Y, Wang Z, Chen G, et al. Elimination of Upper Bracket Resonance in Extremely High Head Francis Hydro-Generators[J]. Engineering Failure Analysis, 2009, 16(1): 119–127.