本文選題：油液粘度 + 懸浮顆粒�。� 參考：《應(yīng)用力學學報》2017年03期

【摘要】：油液中所含顆粒物不利于設(shè)備的安全運行。根據(jù)油液中顆粒物尺寸較小、較稀的特性,利用懸浮流的理論建立了含懸浮顆粒油液的混合物模型,通過特征線法數(shù)值求解,并與SRC實驗數(shù)據(jù)比較,驗證了所建模型的有效性;利用該模型對不同油液粘度的懸浮流中各相的動態(tài)特征進行了分析。結(jié)果表明:油液的速度、壓力的躍變幅值隨著粘度的增大呈現(xiàn)較微弱的增大,懸浮顆粒的速度和濃度則隨著粘度的增大而增大;懸浮流中各相發(fā)生躍變的時刻在管路的不同區(qū)段而不同,在管路的始端、中段、末端分別為T/4(T為脈動周期)的奇數(shù)倍、T/8的奇數(shù)倍、T/4的偶數(shù)倍時刻;懸浮顆粒對油液具有較好的跟隨性,顆粒的速度和濃度分布分別受到油液速度和壓力的影響。
[Abstract]:The particulates contained in the oil are not conducive to the safe operation of the equipment. According to the small size and dilute characteristics of particles in oil, the model of mixture containing suspended particles is established by using the theory of suspended flow. The numerical solution is solved by the characteristic line method, and compared with the experimental data of SRC, the validity of the model is verified. The dynamic characteristics of each phase in suspension flow with different oil viscosity were analyzed by using this model. The results show that the oil velocity and pressure amplitude increase weakly with the increase of viscosity, while the velocity and concentration of suspended particles increase with the increase of viscosity. The jumping time of each phase in the suspension flow is different in different sections of the pipeline. In the beginning, middle and end of the pipeline are the odd times of T / 4 (T / 8) and the odd times of T / 8 and the even times of T / 4, respectively, at the beginning, the middle and the end of the pipeline are the odd number times of T / 4 (T / 8) and the time of even number of T / 4, respectively. The suspended particles have good following performance to the oil, and the velocity and concentration distribution of the particles are affected by the oil velocity and pressure, respectively.
【作者單位】： 重慶工商大學廢油資源化技術(shù)與裝備工程研究中心;
【基金】：國家自然科學基金(51375516) 重慶基礎(chǔ)與前沿研究項目(cstc2016jcyj A0185)
【分類號】：O35

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1 邵學軍,夏震寰;紊動流場中懸浮顆粒分布的隨機理論[J];力學學報;1991年01期

2 李蔭亭,關(guān)德相;大雷諾數(shù)平穩(wěn)湍流中懸浮顆粒的運動[J];科學通報;1980年06期

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4 ;[J];;年期

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