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摘要? 建立了考慮含蠟原油非牛頓性和析蠟相變過(guò)程的單盤(pán)式浮頂油罐內(nèi)含蠟原油溫降物理數(shù)學(xué)模型，并發(fā)展了一體化耦合求解方法,。模型中,，采用冪律方程描述罐內(nèi)含蠟原油的非牛頓特性；采用湍流大渦模擬方法計(jì)算罐內(nèi)含蠟原油的湍流流動(dòng)過(guò)程,；采用焓多孔介質(zhì)理論計(jì)算罐內(nèi)含蠟原油的析蠟相變過(guò)程,，并跟蹤罐內(nèi)含蠟原油的相變界面。利用文獻(xiàn)中的結(jié)果對(duì)本文模型進(jìn)行驗(yàn)證,?；隍?yàn)證的程序,，對(duì)實(shí)際單盤(pán)式浮頂油罐內(nèi)含蠟原油溫降過(guò)程進(jìn)行計(jì)算，研究罐內(nèi)含蠟原油溫降過(guò)程的演化規(guī)律,，并對(duì)罐頂,、罐底凝油層的增長(zhǎng)以及罐頂、罐底和罐壁處傳熱量的變化規(guī)律進(jìn)行研究,。研究結(jié)果可為單盤(pán)式浮頂油罐的設(shè)計(jì)和生產(chǎn)方案的制定提供一定的指導(dǎo),。

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關(guān)鍵詞 ：單盤(pán)式浮頂油罐, 溫降規(guī)律, 非牛頓性, 析蠟相變, 大渦模擬

Abstract：

　　Physical and mathematical models for the temperature drop process of the waxy crude oil in the single-plate floating roof oil tank are established with the consideration of non-Newtonian behavior and wax precipitation, and a coupled integrative numerical procedure is developed. In this research, the non-Newtonian behavior is described by the power-law equation. The turbulent flow is calculated by Large Eddy Simulation (LES) method. Wax precipitation of the waxy crude oil in the tank is simulated by the enthalpy-porous media theory, in which the gel oil interface is tracked. The numerical program is validated by the results obtained from the literatures. Based on the verified program, temperature drop process in a single-plate floating roof oil tank is calculated, and the evolution characteristics of the waxy crude oil in the tank are studied. Furthermore, gel oil growth on the tank top and tank bottom and heat flux on tank top, tank bottom and tank wall are also investigated in this research. The research results provide guidance for the scientific designing of the single-plate floating roof oil tank and making schedule of waxy crude oil turnover reasonably.

Key words： single-plate floating roof oil tank temperature drop characteristics non-newtonian behavior phase change LES

收稿日期: 2017-03-15 ????

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基金資助:國(guó)家自然科學(xué)基金(No. 51325603)資助

通訊作者: 宇波, [email protected]

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王敏,，李敬法，張欣雨,，宇波. 單盤(pán)式浮頂油罐內(nèi)含蠟原油溫降規(guī)律數(shù)值計(jì)算研究[J]. 石油科學(xué)通報(bào), 2017, 2(2): 267-278. WANG Min, LI Jingfa, ZHANG Xinyu, YU Bo. Numerical study on the temperature drop characteristics of waxy crude oil in a single-plate floating roof oil tank. Petroleum Science Bulletin, 2017, 2(2): 267-278.

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