A Parallel Calculation Method of Dynamic Mesh in Lubrication Flow Area of ​​Rotor-sliding Bearing System

A sliding bearing and parallel computing technology, which is applied in the field of computational fluid dynamics simulation, can solve the problems of non-existence, data export errors, and inability to obtain accurate shaft journal center coordinates, so as to ensure calculation accuracy, overcome low simulation efficiency, and improve The effect of computational efficiency
CN112949112BActive Publication Date: 2022-05-20CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Publication Date
2022-05-20

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Abstract

A method for parallel calculation of the dynamic grid in the lubrication water domain of a rotor-sliding bearing system, including pre-processing operations in the lubrication water domain, parallel simulation calculation setting operations, structured dynamic grid calculation operations, flow field calculation operations, and post-processing steps; rotor-sliding The dynamic grid parallel computing method of the lubrication flow domain of the bearing system realizes the multi-core parallel simulation of the lubrication flow domain of the high-speed rotor-sliding bearing system based on the structured dynamic grid in the parallel computing environment, and solves the problem of the original dynamic grid program in parallel computing. Due to the lack of data transmission, summary, and export functions in the environment, the problem that it cannot be applied to the parallel environment has realized accurate and efficient simulation of the rotor axis trajectory in the rotor-sliding bearing system, and overcomes the low simulation efficiency of the existing calculation methods. Low disadvantages can improve calculation efficiency while ensuring calculation accuracy, and predict the stability of high-speed rotor-bearing systems.
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Description

technical field

[0001] The invention relates to a parallel computing method for a dynamic mesh in a lubricated flow domain of a rotor-sliding bearing system, which belongs to the technical field of computational fluid dynamics simulation simulation. Background technique

[0002] In the field of computational fluid dynamics (Computational Fluid Dynamics, CFD) simulation technology, serial computing can only rely on one thread in the processor to perform calculations. Waste of computing resources. Therefore, with the development of computational fluid dynamics simulation technology, the use of parallel technology has become a necessary means to improve the calculation speed of CFD.

[0003] Centrifugal compressors, steam turbines, gas turbines and other high-speed rotating machinery are widely used in petrochemical, power engineering and other fields. This type of machinery has the characteristics of high operating speed and high working power, and is a key part of the entir...

Claims

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