High-pressure compressor performance evaluation method for variable-cycle core compression system
A compression system and compressor technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of large errors, difficult to specify the entrance field, etc., and achieve the effect of small errors
Active Publication Date: 2019-11-19
AECC SHENYANG ENGINE RES INST
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[0004] If the traditional method is used to calculate and test the two components of the CDFS and the high-pressure compressor, reliable CDFS performance can be obtained, but for the high-pressure compressor, it is difficult to give a reasonable inlet field, so only an approximate performance, the error is relatively large
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[0031] In order to make the purpose, technical solutions and advantages of the implementation of this application clearer, the technical solutions in the embodiments of the application will be described in more detail below in conjunction with the drawings in the embodiments of the application. In the drawings, the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the application, but should not be understood as a limitation to the application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application. The embodiments of the present applic...
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The invention belongs to the field of aero-engine aerodynamic performance testing, and particularly relates to a high-pressure compressor performance evaluation method for a variable-cycle core compression system. The method comprises the following steps: determining a core engine driving fan-level working state corresponding to the characteristics of a high-pressure compressor; constructing a core engine driving fan stage, high-pressure compressor and front duct joint calculation model; presetting boundary conditions of a front duct outlet and a high-pressure compressor outlet in the joint calculation model, and calculating the joint calculation model to obtain the performance of the joint compression system; and extracting the performance of the high-pressure compressor from the obtainedcombined compression system. The invention discloses a high-pressure compressor performance evaluation method for a variable-cycle core compression system. Compared with a performance evaluation method for independently carrying out calculation and testing on the high-pressure compressor, the performance evaluation method has the advantages that the high-pressure compressor can be placed in a more reasonable working environment, the obtained performance comprises the matching relation between the high-pressure compressor and the CDFS, the performance evaluation method is more practical, and errors are relatively small.
Description
Technical field [0001] The application belongs to the field of aeroengine aerodynamic performance testing, and in particular relates to a high-pressure compressor performance evaluation method for a variable-cycle core compression system. Background technique [0002] In a variable-cycle engine, the core engine drive fan stage (CDFS) and the high-pressure compressor form a combined compression system, which is driven by a high-pressure turbine. In this compression system, the pneumatic coupling between CDFS and the high-pressure compressor is obvious, and the pneumatic design needs to be considered as a unified system, and the overall professional design of the whole machine needs to use the respective performance parameters of the two components. [0003] Therefore, how to evaluate the performance of the entire system and the two sub-components is a problem that designers need to solve. At present, there are many researches on the individual components of CDFS, and relatively few...
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Inventor 刘永泉李晓庆高山梁彩云张德志
Owner AECC SHENYANG ENGINE RES INST