A mass addition approach to the bypass turbomachine through flow inverse design problem

作者：Shan Peng^*

来源：Journal of Mechanical Science and Technology, 2008, 22(10): 1921-1925.

DOI：10.1007/s12206-008-0733-x

• Torbofan
• Turbomachine
• Streamline curvature
• Through flow
• Fan splitter
• Shrouded rotor blade

In the design of a low bypass ratio fan stage, this paper links the through flow inverse design problems of the fall rotor. the core channel fan stator and the bypass channel fail stator together, as an organic whole, with the fan splitter aerodynamic design problem. It forms thus a Unified through flow inverse problem for two-channel turbomachines. While an overall quasi-radial-equilibrium of the streamlines is iteratively achieved among five parts - the fan rotor. the core channel fan stator, the bypass channel In stator. the fan splitter and the position of the fan splitter, the blading processes for one fan blade, two fan vanes and one fan splitter ring are performed. This method designs in one pass a fan stage and a splitter with a precise bypass ratio. Its primary and key approach scheme is the introduction Of a mass addition flow half way through the through flow streamline development. This scheme can serve as a new feature which can be inserted into those existing through flow programs. When Subtracting a mass flow after adding a mass flow alternatively. this scheme can also be used to treat the inverse design problem of a fan/compressor rotor blade with part-span shrouds.

• 出版日期2008-10
• 单位北京大学