Simulation method for random change of density of fluid in oil and gas transmission pipeline

The invention discloses a method for simulating random change of fluid density in an oil and gas transmission pipeline, which comprises the following steps of: constructing a random change model of the fluid density in the pipeline according to related random parameters of petroleum and natural gas...

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Bibliographic Details
Main Authors HU ZHONGYUAN, LIANG ZHENLIN, PAN JIAHUI, XIE WUDE
Format Patent
LanguageChinese
English
Published 18.10.2022
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention discloses a method for simulating random change of fluid density in an oil and gas transmission pipeline, which comprises the following steps of: constructing a random change model of the fluid density in the pipeline according to related random parameters of petroleum and natural gas transmitted in the pipeline; probability distribution of the related random parameters is obtained through a gas-liquid two-phase flow physical model experiment, and random valuing is carried out; according to the in-pipe fluid density random change model and the random values of the related random parameters, coupling a flexible pipeline structure vibration and density random change fluid power control equation; and solving the dynamic control equation by adopting a finite element method or a finite difference method to obtain a dynamic response result of vibration of the pipeline structure and a time domain response result of stress strain in the structure. According to the simulation method, the randomness analy
Bibliography:Application Number: CN202210729733