Rotor-sliding bearing system lubrication basin dynamic grid parallel computing method

A sliding bearing and parallel computing technology, which is applied in the field of computational fluid dynamics simulation, can solve problems such as non-existence, data export errors, and inaccurate acquisition of journal center coordinates, so as to improve computing efficiency, overcome low simulation efficiency, and ensure The effect of computational precision
CN112949112AActive Publication Date: 2021-06-11CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Publication Date
2021-06-11

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Abstract

The invention discloses a rotor-sliding bearing system lubrication basin dynamic grid parallel calculation method. The method comprises the steps of lubrication basin pretreatment operation, parallel simulation calculation setting operation, structured dynamic grid calculation operation, flow field calculation operation and post-treatment operation. According to the rotor-sliding bearing system lubrication basin dynamic grid parallel computing method, multi-core parallel simulation of a lubrication basin of a high-speed rotor-sliding bearing system based on a structured dynamic grid is achieved in a parallel computing environment; the problem that an original dynamic grid program cannot be suitable for a parallel environment due to lack of data transmission, summarization and export functions in the parallel computing environment is solved, accurate and efficient simulation of the rotor axis track in the rotor-sliding bearing system is achieved, and the defect that an existing computing method is low in simulation efficiency is overcome. The calculation efficiency can be improved while the calculation precision is ensured, and the stability of the high-speed rotor-bearing system is predicted.
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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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