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Li Y.,North China Electrical Power University | Kang S.,North China Electrical Power University | Fan X.-L.,NUMECA BEIJING Fluid Engineering Co. | Wang J.-L.,Dongfang Turbine Co. | Zhao P.,Dongfang Turbine Co.
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | Year: 2011

Numerical investigation of the steady and viscous flow around a back-swept blade was carried out by using a commercial software FINETM/Turbo. A 2.5 MW wind turbine DF90 was chosen as the baseline and was used to verify the numerical method. On this basis, the back-swept blade was assumed with sweeping back the planform at the outboard region. The influences of the back-swept planform on the aerodynamic performance were analyzed in details, and a method was proposed to define the static pressure coefficient. Source


Wang H.,Shouguang Kangyue Turbocharger Company Ltd | Guo R.,NUMECA BEIJING Fluid Engineering Co. | Kang S.,North China Electrical Power University
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2010

To enhance performance of the turbocharger compressor stage, the impeller profile optimized design was performed based on steady numerical simulation using FINE™/Design3D software. The efficiency, pressure ratio and power were taken as optimized objectives. The optimization procedure included parameterized modeling, 3D viscous flow aerodynamic numerical simulation, design of experiment, adoption of genetic algorithm and artificial neural network technique. Total pressure loss in volute was decreased by adjusting the velocity circulation. Compared with the original, total efficiency, pressure ratio of the optimized turbocharger and the engine power rise respectively by 6%, 0.11 and 0.5kW. Source


Fan X.-L.,NUMECA BEIJING Fluid Engineering Co. | Liu Y.-F.,NUMECA BEIJING Fluid Engineering Co. | Guo R.,NUMECA BEIJING Fluid Engineering Co. | Zhu Z.,NUMECA BEIJING Fluid Engineering Co. | Kang S.,North China Electrical Power University
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | Year: 2012

A Fluid-Structure-Interactive method was used to solve flutter problems in this paper. Main problems was Rotor blades for the Fluid-Structure coupling, through MpCCI platform and use the commercial software Turbo and ABAQUS do a coupling calculation. Obtained internal flow channel animation, under the different flow speed in the design, and flow field non-coupling and coupling calculations were compared. The results show that the blade vibration was effected significantly near the stall point. The analysis of compressor coupling can be used to predict the flutter. Source

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