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Journal Articles

Stall Inception Analysis on Axial Compressors with Different Rotor Loading Distributions under Radial Inlet Distortions

Accepted Manuscript
Dakun Sun, Hengyi Zhu, Dengke Xu, Jiahao Hu, Xiaofeng Sun
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng.
Paper No: FE-24-1235
https://doi.org/10.1115/1.4066640
Published Online: September 28, 2024
View Article titled, Stall Inception Analysis on Axial Compressors with Different Rotor Loading Distributions under Radial Inlet Distortions
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Topics: Compressors, Rotors, Stall inception, Stability, Flow (Dynamics), Blades, Design, Pressure, Errors, Experimental methods
Journal Articles

Resolvent Analysis for Subsonic Compressor With Impedance Boundary Condition Casing Treatment

Dakun Sun, Jiahao Hu, Ruize Xu, Jia Li, Xu Dong, Dengke Xu, Xiaofeng Sun
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2025, 147(1): 011006.
Paper No: TURBO-24-1036
https://doi.org/10.1115/1.4066148
Published Online: September 3, 2024
View Article titled, Resolvent Analysis for Subsonic Compressor With Impedance Boundary Condition Casing Treatment
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Topics: Boundary-value problems, Compressors, Optimization, Stall inception, Pressure, Rotors, Design, Flow (Dynamics), Blades
Journal Articles

Corrosion of Reinforcement in Reinforced Concrete: Influencing Factors, Detection Methods, and Control Techniques—A Review

Qihui Wang, Xing Zhou, Xiaofeng Sun, Ruby Aslam, Ruozhou Wang, Yi Sun, Zhitao Yan, Xueming Li
Journal: Journal of Testing and Evaluation
Publisher: ASTM International
Article Type: Review Articles
J. Test. Eval.. September 2024, 52(5): 3096–3122.
Paper No: JTE20230752
https://doi.org/10.1520/JTE20230752
Published Online: September 1, 2024
View Article titled, Corrosion of Reinforcement in Reinforced Concrete: Influencing Factors, Detection Methods, and Control Techniques—A Review
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Proceedings Papers

Numerical and Experimental Investigation of Steady Flow Distortion in Drooped Turbofan Intakes

Yuhan Zhang, Xu Dong, Zhenyu Li, Dakun Sun, Xiaofeng Sun
Proc. ASME. GT2024, Volume 1: Aircraft Engine, V001T01A032, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124697
https://doi.org/10.1115/GT2024-124697
View Paper titled, Numerical and Experimental Investigation of Steady Flow Distortion in Drooped Turbofan Intakes
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Topics: Computational fluid dynamics, Flow (Dynamics), Turbofans, Aircraft engines, Compressors, Ducts, Experimental design, Geometry, Internal flow, Pressure
Proceedings Papers

Sensitivity Analysis for Flow Stability of Axial Compressor Based on Meridional Flow

Haoyu Ni, Yibo Fang, Dengke Xu, Hengyi Zhu, Dakun Sun, Xiaofeng Sun
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A043, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128643
https://doi.org/10.1115/GT2024-128643
View Paper titled, Sensitivity Analysis for Flow Stability of Axial Compressor Based on Meridional Flow
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Topics: Compressors, Flow (Dynamics), Sensitivity analysis, Stability, Stall inception
Proceedings Papers

Effects of Radially Variable Sweep Vanes on Rotor-Stator Interaction Noise

Zihan Shen, Xiaoyu Wang, Guangyu Zhang, Xiaofeng Sun
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT33A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-120948
https://doi.org/10.1115/GT2024-120948
View Paper titled, Effects of Radially Variable Sweep Vanes on Rotor-Stator Interaction Noise
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Topics: Noise (Sound), Rotors, Stators, Design, Cascades (Fluid dynamics), Chords (Trusses), Aircraft engines, Ducts, Modeling, Pressure
Proceedings Papers

Design of Broadband Liner Based on Cremer Concept

Ji Zhang, Xianghai Qiu, Lin Du, Xiaofeng Sun
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT33A008, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124758
https://doi.org/10.1115/GT2024-124758
View Paper titled, Design of Broadband Liner Based on Cremer Concept
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Topics: Design, Noise control
Proceedings Papers

Non-Synchronous Vibration and Related Tip Clearance Flow Characteristic in a Low-Speed Axial Fan

He Zhang, Ming Zhang, Xu Dong, Dakun Sun, Xiaofeng Sun
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A024, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129094
https://doi.org/10.1115/GT2024-129094
View Paper titled, Non-Synchronous Vibration and Related Tip Clearance Flow Characteristic in a Low-Speed Axial Fan
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Topics: Clearances (Engineering), Flow (Dynamics), Vibration
Journal Articles

Model Verification and Experimental Study of the Turbomachinery Wake Flow Field Reconstruction

Hanting Gao, Xu Dong, Ruize Xu, Lei Gao, Dakun Sun, Xiaofeng Sun
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2024, 146(2): 021203.
Paper No: FE-23-1381
https://doi.org/10.1115/1.4064104
Published Online: December 11, 2023
View Article titled, Model Verification and Experimental Study of the Turbomachinery Wake Flow Field Reconstruction
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Topics: Flow (Dynamics), Rotors, Turbomachinery, Vortices, Wake turbulence, Wakes, Interpolation, Vorticity, Errors
Proceedings Papers

A Study of Stall Process in an Axial Flow Compressor With Foam Metal Casing Treatment

Jia Li, Dakun Sun, Ruize Xu, Xu Dong, Xiaofeng Sun
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A024, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82828
https://doi.org/10.1115/GT2022-82828
View Paper titled, A Study of Stall Process in an Axial Flow Compressor With Foam Metal Casing Treatment
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Topics: Axial flow, Compressors, Metals, Stall inception, Flow (Dynamics), Rotors, Blades, Chords (Trusses), Design, Emissions
Proceedings Papers

Experimental Study on the Surface Geometry of Foam-Metal Casing Treatment

Yuqing Wang, Dakun Sun, Jia Li, Jinming Zhang, Xu Dong, Xiaofeng Sun
Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T10A017, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82966
https://doi.org/10.1115/GT2022-82966
View Paper titled, Experimental Study on the Surface Geometry of Foam-Metal Casing Treatment
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Topics: Acoustics, Compressors, Geometry, Metals
Proceedings Papers

Experimental Study on Different Tip Clearance of Low-Speed Axial Fan

Ming Zhang, Jia Li, Xu Dong, Dakun Sun, Xiaofeng Sun
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A037, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59899
https://doi.org/10.1115/GT2021-59899
View Paper titled, Experimental Study on Different Tip Clearance of Low-Speed Axial Fan
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Topics: Clearances (Engineering)
Journal Articles

Foam-Metal Casing Treatment on an Axial Flow Compressor: Stability Improvement and Noise Reduction

Dakun Sun, Jia Li, Xu Dong, Ruize Xu, Xiaofeng Sun
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2022, 144(1): 011003.
Paper No: TURBO-20-1107
https://doi.org/10.1115/1.4051782
Published Online: September 7, 2021
View Article titled, Foam-Metal Casing Treatment on an Axial Flow Compressor: Stability Improvement and Noise Reduction
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Topics: Compressors, Metals, Pressure, Stability, Flow (Dynamics), Noise control, Blades, Noise (Sound)
Proceedings Papers

Effect of the Foam Metal Casing Treatment on a Low-Speed Axial Compressor

Jia Li, Dakun Sun, Reize Xu, Xu Dong, Xiaofeng Sun
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A020, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15149
https://doi.org/10.1115/GT2020-15149
View Paper titled, Effect of the Foam Metal Casing Treatment on a Low-Speed Axial Compressor
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Topics: Compressors, Metals
Journal Articles

Analysis Method of Compressor Stability Based on Eigenvalue Theory

Dengke Xu, Chen He, Dakun Sun, Xiaofeng Sun
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. July 2020, 142(7): 071204.
Paper No: FE-19-1236
https://doi.org/10.1115/1.4046558
Published Online: March 27, 2020
View Article titled, Analysis Method of Compressor Stability Based on Eigenvalue Theory
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Topics: Blades, Compressors, Flow (Dynamics), Rotors, Stability, Eigenvalues
Proceedings Papers

Suppression of Combustion Instabilities in a Premixed Swirl Combustor With Acoustic Liner

Liangliang Xu, Guoqing Wang, Changcai Mo, Xunchen Liu, Lei Li, Fei Qi, Xiaofeng Sun
Proc. ASME. GT2019, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A035, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90600
https://doi.org/10.1115/GT2019-90600
View Paper titled, Suppression of Combustion Instabilities in a Premixed Swirl Combustor With Acoustic Liner
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Topics: Acoustics, Combustion, Combustion chambers, Flow (Dynamics), Temperature, Air flow, Combustion systems, Energy dissipation, Flames, Mach number
Journal Articles

Calculation of Stall Margin Enhancement With Micro-Tip Injection in an Axial Compressor

Xiaohua Liu, Jinfang Teng, Jun Yang, Xiaofeng Sun, Dakun Sun, Chen He, Juan Du
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. August 2019, 141(8): 081109.
Paper No: FE-18-1631
https://doi.org/10.1115/1.4042561
Published Online: March 4, 2019
View Article titled, Calculation of Stall Margin Enhancement With Micro-Tip Injection in an Axial Compressor
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Topics: Compressors, Ejectors, Flow (Dynamics), Pressure, Rotors, Blades
Journal Articles

Further Investigation on Acoustic Stall-Warning Approach in Compressors

Xu Dong, Fanyu Li, Ruize Xu, Dakun Sun, Xiaofeng Sun
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. June 2019, 141(6): 061001.
Paper No: TURBO-17-1137
https://doi.org/10.1115/1.4041900
Published Online: January 21, 2019
View Article titled, Further Investigation on Acoustic Stall-Warning Approach in Compressors
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Topics: Acoustics, Blades, Compressors, Pressure, Sensors, Signals, Rotors, Resolution (Optics)
Journal Articles

Effect of RANS Method on the Stall Onset Prediction by an Eigenvalue Approach

Zhe Xie, Yangwei Liu, Xiaohua Liu, Lipeng Lu, Xiaofeng Sun
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. March 2019, 141(3): 031401.
Paper No: FE-18-1290
https://doi.org/10.1115/1.4041362
Published Online: October 5, 2018
View Article titled, Effect of RANS Method on the Stall Onset Prediction by an Eigenvalue Approach
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Topics: Compressors, Eigenvalues, Flow (Dynamics), Reynolds-averaged Navier–Stokes equations, Simulation, Turbulence, Blades
Proceedings Papers

Effects of Rotating Inlet Distortion on Two-Stage Compressor Stability With Stall Precursor-Suppressed Casing Treatment

Dakun Sun, Jia Li, Xu Dong, Benhao Gu, Xiaofeng Sun
Proc. ASME. GT2018, Volume 2A: Turbomachinery, V02AT45A025, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76701
https://doi.org/10.1115/GT2018-76701
View Paper titled, Effects of Rotating Inlet Distortion on Two-Stage Compressor Stability With Stall Precursor-Suppressed Casing Treatment
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Topics: Compressors, Stability, Compression, Inlet guide vanes, Rotors, Wire mesh