【文章內(nèi)容簡介】 分析概述：對計算結(jié)果進一步分析，對出口為70mm和90mm的裝置的效能進行分析。取z=,z=,z=,z=,z=。、壓強圖取z=,z=,z=,z=,z= ke模型出口70mm,z= ke模型出口70mm,z= ke模型出口70mm,z= ke模型出口70mm,z= ke模型出口70mm, z= ke模型出口70mm,z=、繪制壓強折線圖。依次點擊Report—Surface Intergrals打開Surface Intergrals對話框， Surface Intergrals對話框在Report Type中選擇AreaWeighted Average；在Filed Variable中選擇Pressure（壓強），Total Pressure。在Surfaces中選擇in、out、z=、z=、z=、z=、z=。點擊Compute。得到數(shù)據(jù)如下表。、出口70mm各橫截面壓強表1 、出口70mm各橫截面壓強出口70mm壓強圖位置（m)0壓強（Pa）418803899367008210442256.82422275.02912295.8 出口70mm各橫截面壓強、出口90mm各橫截面壓強表出口90mm各橫截面壓強出口90mm壓強圖位置（m)0壓強（Pa）6492828375695529368361951019.48 出口90mm各橫截面壓強小結(jié)：兩條壓強圖總體都是呈下降趨勢；，在出口處降到最低；出口70mm的減壓裝置比90mm的減壓裝置減壓效果更好表出口不同模型的減壓效果出口不同模型的減壓效果 　In（Pa）Out(Pa)壓強差(Pa)70mm90mm由表5可以得出出水口70mm的裝置比出水口90mm的減壓裝置減壓效果更好。第六章 結(jié)論通過對減壓裝置進行物理建模，然后對模型精心數(shù)值模擬計算，繪制減壓裝置各斷面的壓力和速度圖，,減壓裝置其余屬性保持相同時得出以下結(jié)論：，壓力明顯降低；；在減壓裝置處，壓力下降幅度更大；，都是在減壓裝置所在區(qū)域壓強開始下降；但是出口70mm的裝置比出口90mm的裝置減壓效果更好；參考文獻[1] 張紅霞. 可調(diào)式減壓消能裝置 [D].太原：太原理工大學(xué)，2009[2] 白丹，宋立勛，郭霖. 滴灌減壓消能件[D].西安：西安理工大學(xué)，2012[3] 徐志通，余雪松. 高層建筑壓力流雨水排水系統(tǒng)立管減壓消能裝置[R].北京：北京泰寧科創(chuàng)雨水利用技術(shù)股份有限公司[4] 曲景學(xué),楊永全,張建民,[J].四川大學(xué)學(xué)報(工程科學(xué)版),2001,(第3期). [5] 余挺,田忠,王韋,[J].水利學(xué)報,2011,(第2期).[6] 付寧寧. 熱管在油浸式變壓器中溫度場分布的Fluent數(shù)值模擬[D].河北：河北工業(yè)大學(xué)[7] 王立新. 回路型重力熱管蒸發(fā)腔沸騰傳熱的FLUENT數(shù)值分析.[D].浙江：浙江大學(xué)[8] 胡俊明. 基于Fluent的波浪輻射與繞射問題數(shù)值模擬研究.[D].哈爾濱：哈爾濱工程大學(xué)[9] 張萌萌. 基于FLUENT的北極海冰三維溫度場數(shù)值仿真和融化模擬.[D].武漢：武漢理工大學(xué)[10] 宮汝志. 汽輪發(fā)電機通風(fēng)冷卻風(fēng)扇CFD設(shè)計與優(yōu)化.[D].哈爾濱：哈爾濱工業(yè)大學(xué)[11] 張振江. 船舶CFD網(wǎng)格自動生成技術(shù)的開發(fā)及其應(yīng)用.[D].上海：上海交通大學(xué)[12] 王新龍. 輕烴外輸泵葉輪內(nèi)部流場的CFD模擬研究.[D].東北：東北石油大學(xué)[13] 曹應(yīng)佳. 基于FLUENT的波節(jié)管換熱器性能數(shù)值仿真及其結(jié)構(gòu)優(yōu)化.[D].武漢：武漢理工大學(xué)[14] 郭春雨. 螺旋槳與舵附推力鰭相互干擾水動力性能數(shù)值計算.[D].哈爾濱：哈爾濱工業(yè)大學(xué)[15] 高宏適. 數(shù)值模擬技術(shù)在金屬塑性加工中的應(yīng)用.[N]. 世界金屬導(dǎo)報, 20121120[16] 劉凡. 油藏數(shù)值模擬數(shù)模研究.[R]. 中國石油報, 20100804[17] Arvay。 Adam. Proton exchange membrane fuel cell modeling and simulation using Ansys Fluent[D]. Arizona State .[18] Sweeten。 Benjamin. CFD analysis of UAVs using VORSTAB, FLUENT, and advanced aircraft analysis software.[D]. The University of Kansas[19] Dakin。 Glenn H. IT fluent information literacy skill: A Delphi study of an essential course offering[D]. University of Phoenix致謝畢業(yè)論文暫告收尾，這也意味著我在太原理工大學(xué)現(xiàn)代科技學(xué)院的四年的學(xué)習(xí)生活既將結(jié)束?；厥准韧?，自己一生最寶貴的時光能于這樣的校園之中，能在眾多學(xué)富五車、才華橫溢的老師們的熏陶下度過，實是榮幸之極。在這四年的時間里，我在學(xué)習(xí)上和思想上都受益非淺。這除了自身努力外，與各位老師、同學(xué)和朋友的關(guān)心、支持和鼓勵是分不開的論文的寫作是枯燥艱辛而又富有挑戰(zhàn)的。老師的諄諄誘導(dǎo)、同學(xué)的出謀劃策及家長的支持鼓勵，是我堅持完成論文的動力源泉。在此，我特別要感謝我的導(dǎo)師張老師、孫老師以及秦師兄和李師兄。從論文的選題、文獻的采集、框架的設(shè)計、結(jié)構(gòu)的布局到最終的論文定稿，從內(nèi)容到格式，從標(biāo)題到標(biāo)點，她都費盡心血。沒有張老師、孫老師的辛勤栽培、孜孜教誨，以及兩位師兄的指導(dǎo)和改正，就沒有我論文的順利完成。感謝我們小組的各位同學(xué)，與他們的交流使我受益頗多。最后要感謝我的家人以及我的朋友們對我的理解、支持、鼓勵和幫助，正是因為有了他們，我所做的一切才更有意義；也正是因為有了他們，我才有了追求進步的勇氣和信心。時間的倉促及自身專業(yè)水平的不足，整篇論文肯定存在尚未發(fā)現(xiàn)的缺點和錯誤。懇請閱讀此篇論文的老師、同學(xué)，多予指正，不勝感激！外文原文SAND EROSION MODEL IMPROVEMENT FOR ELBOWS IN GAS PRODUCTION,MULTIPHASE ANNULAR AND LOWLIQUID FLOWCHAPTER 2LITERATURE REVIEW This chapter outlines the literature reviews as follows. First, backgrounds of the mechanism of solid particle erosion as well as the erosion model used in this work are presented. Secondly, a general overview of multiphase annular and lowliquid flows with emphasis on literature associated with modeling in vertical and horizontal flows is presented. Thirdly, the literature associated with previous large and smallscale erosion xperimental work in singlephase and multiphase flow conditions is presented. Fourthly, the literature associated with experimental characterization of multiphase flows in pipelines and elbows is presented with emphasis on the use of WireMesh Sensors(WMS). Finally, a summary of the factors affecting sand erosion in annular and lowliquid flow conditions is presented Mechanism and Modeling of Solid Particle Erosion Solid Particle ErosionThe process by which wall material is removed due to particle impacts is referred to as solid particle erosion. Erosion is different from wear in that there is a fluid contribution to the mechanical action that is producing wear.The mechanism of erosion is very much dependent on the process parameters involved. Properties of the impacting particles, target materials and environment have a major influence on the mechanism of erosion. In the literature, various schools of thought exist for the mechanism of erosion. For the erosion of ductile metals, Finnie (1958) and Bitter (1963) reported that, at oblique impact, erosion occurs by the cutting action of the particle irrespective of its shape and size. Hutchings (1979) agreed with the cutting mechanism at oblique impact。 however, the cutting action has three different types that depend on the shape and orientation of the erodent particles. For the erosion by oblique impact of spherical particles, the material is removed by a ploughing action, displacing materials to the front and side of the particle. Further impacts on the neighboring site cause removal of highly strained materials from the rim or terminal lip of the crater. For angular shaped particles, Hutchings (1992) proposed a similar mechanism to that by Finnie (1958) and Bitter (1963), although the cutting action is acknowledged to be two different types depending on the orientation of the erodent particle as is strikes the target surface, as well as whether the particle rolls forward or backward during contact. Regardless of the erosion mechanism, the most vulnerable parts of production systems tend to be ponents in which: 1) the flow direction changes suddenly, 2) high flow velocities occur caused by high volumetric flow rates and, 3) high flow velocities occur caused by flow restrictions. Components and pipework upstream of the primary separators carry multiphase mixtures of gas, liquid and particulates and are consequently more likely to suffer from solid particle erosion. Additionally, some geometries such as elbows, plug tees and other kind of bends may possess plex