Article(id=1261262696276738844, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1261262687258985194, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2404307, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1718035200000, receivedDateStr=2024-06-11, revisedDate=1744128000000, revisedDateStr=2025-04-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1778638059919, onlineDateStr=2026-05-13, pubDate=1752768000000, pubDateStr=2025-07-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1778638059919, onlineIssueDateStr=2026-05-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1778638059919, creator=13701087609, updateTime=1778638059919, updator=13701087609, issue=Issue{id=1261262687258985194, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='20', pageStart='8317', pageEnd='8759', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1778638057769, creator=13701087609, updateTime=1778753106634, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1261745237240722095, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1261262687258985194, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1261745237240722096, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1261262687258985194, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=8498, endPage=8507, ext={EN=ArticleExt(id=1261262698331947823, articleId=1261262696276738844, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Heat Transfer and Flow Characteristics of Annular Inner Ribbed Convex Tubes, columnId=1156264600770302582, journalTitle=Science Technology and Engineering, columnName=Papers·Energy and Power Engineering, runingTitle=null, highlight=null, articleAbstract=
To enhance heat transfer efficiency and improve thermal exchange performance, a composite enhanced thermal exchange technology was explored that combined annular internal fins with protruding units, aiming to create an innovative thermal exchange structure. Through numerical simulation methods, the flow and heat transfer characteristics of this structure were studied within the Reynolds number Re range is 8 000~20 000. The analysis results indicate that the layout of the protruding units and four parameters (depth, radius, spacing, and quantity) have a significant impact on thermal performance. The mechanism of enhanced heat transfer was explained using field synergy theory. Under optimal parameters, with a depth of 2 mm, a radius of a specific value, a spacing of 20 mm, and six protruding units, the best thermal exchange performance is achieved, with an overall heat transfer performance improvement of 4.71%~23.59% compared to internal finned tubes. Increasing depth, radius, and quantity, while decreasing spacing, enhances heat transfer but also increases resistance, limiting the growth of overall thermal performance. Field synergy analysis shows that the structure promotes strong secondary vortices, significantly enhancing the synergy effect between the velocity field and the temperature field.
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为了提升热传递效率并增强热交换性能,对一种结合环形内部鳍片与突出单元的复合强化热交换技术进行探讨,旨在创造一种创新的热交换结构。通过数值模拟方法,研究在雷诺数Re范围为8 000~20 000该结构的流动和热传递特性。分析结果显示,突出单元的布局以及4个参数(深度、半径、间距和数量)对热性能有显著影响。通过场协同理论解释了强化热传递机制。在最佳参数下,深度为2 mm、半径为特定值、间距为20 mm、数量为6个突出单元时,实现了最佳的热交换性能,与内部鳍片管相比,整体热传递性能提高了4.71%~23.59%。增加深度、半径和数量,同时减少间距,虽然增强了热传递,但也增加了阻力,限制了整体热传递性能的增长。场协同分析表明,该结构促进了强烈的二次涡流,显著增强了速度场与温度场之间的协同效应。
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李治淼(1976—),男,汉族,黑龙江大庆人,博士,副教授。研究方向:石油钻采设备的力学分析与井下工具研制。E-mail:lzm@163.com。
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李治淼(1976—),男,汉族,黑龙江大庆人,博士,副教授。研究方向:石油钻采设备的力学分析与井下工具研制。E-mail:lzm@163.com。
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李治淼(1976—),男,汉族,黑龙江大庆人,博士,副教授。研究方向:石油钻采设备的力学分析与井下工具研制。E-mail:lzm@163.com。
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41(14): 1288-1300., articleTitle=Heat transfer augmentation of internal flow using twisted tape insert in turbulent flow, refAbstract=null)], funds=[Fund(id=1261262757714903529, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, awardId=YJSCXSJ-2024-16, language=CN, fundingSource=东北石油大学校级研究生创新实践项目(YJSCXSJ-2024-16), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1261262724097556577, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, xref=1, ext=[AuthorCompanyExt(id=1261262724135305314, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, companyId=1261262724097556577, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China), AuthorCompanyExt(id=1261262724219191395, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, companyId=1261262724097556577, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 东北石油大学机械科学与工程学院, 大庆 163318)]), AuthorCompany(id=1261262724554735722, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, xref=2, ext=[AuthorCompanyExt(id=1261262724592484460, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, companyId=1261262724554735722, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Xinglongtai Oil Production Plant of Liaohe Oilfield Company of China National Petroleum and Natural Gas Corporation, Panjin 124011, China), AuthorCompanyExt(id=1261262724621844590, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, companyId=1261262724554735722, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石油天燃气股份公司辽河油田公司兴隆台采油厂, 盘锦 124011)])], figs=[ArticleFig(id=1261262742128869658, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.1, caption=
Geometric model of annular inner rib convex cell, figureFileSmall=9P1WkHMXvBBBRwdU5EplPg==, figureFileBig=ySwGEnMK779Ay9zwTEhXpQ==, tableContent=null), ArticleFig(id=1261262742418276637, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图1, caption=
环形内肋凸胞管几何模型 Lin为进口段管道长度;Ltest为测试段管道长度;Lout为出口段管道长度;D为管道内径;Left View为左视图;Velocity Inlet为进口速度; Constant Temperature Wall为恒壁温;Pressure Outlet为压力出口
, figureFileSmall=9P1WkHMXvBBBRwdU5EplPg==, figureFileBig=ySwGEnMK779Ay9zwTEhXpQ==, tableContent=null), ArticleFig(id=1261262744477679913, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.2, caption=
Schematic diagram of the computational model grid, figureFileSmall=v7TdUgQJBQ4TTs5/D5R2pA==, figureFileBig=a6m59x/ItGNXh8WI0Zu95g==, tableContent=null), ArticleFig(id=1261262744762892591, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图2, caption=
计算模型网格示意图, figureFileSmall=v7TdUgQJBQ4TTs5/D5R2pA==, figureFileBig=a6m59x/ItGNXh8WI0Zu95g==, tableContent=null), ArticleFig(id=1261262745211683123, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.3, caption=
Comparison between Nusselt numbers and correlation equations, figureFileSmall=bugYzYEqa+npIkvqwRYvXQ==, figureFileBig=fyaaUZxQmRqXx3ciaGZ8TA==, tableContent=null), ArticleFig(id=1261262745639502137, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图3, caption=
努塞尔数与关联式对比, figureFileSmall=bugYzYEqa+npIkvqwRYvXQ==, figureFileBig=fyaaUZxQmRqXx3ciaGZ8TA==, tableContent=null), ArticleFig(id=1261262746029572415, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.4, caption=
Comparison of friction coefficient and correlation equation, figureFileSmall=RyRCIs++vpqkaH7GdWuojQ==, figureFileBig=7I1q+D6VcBXWm+t+UJoRRA==, tableContent=null), ArticleFig(id=1261262746230899011, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图4, caption=
摩擦系数与关联式对比, figureFileSmall=RyRCIs++vpqkaH7GdWuojQ==, figureFileBig=7I1q+D6VcBXWm+t+UJoRRA==, tableContent=null), ArticleFig(id=1261262746423837002, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.5, caption=
Velocity and streamline distribution at the cross-section of x=200 mm for different depth tubular convexities, figureFileSmall=kHSnuAl0KsnEt/yfibl83g==, figureFileBig=I3DZ4dCrUR/zHdDlTx70Qw==, tableContent=null), ArticleFig(id=1261262746939736402, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图5, caption=
不同凸胞深度管在x=200 mm截面处的速度及流线分布, figureFileSmall=kHSnuAl0KsnEt/yfibl83g==, figureFileBig=I3DZ4dCrUR/zHdDlTx70Qw==, tableContent=null), ArticleFig(id=1261262748550349141, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.6, caption=
Local turbulent kinetic energy and streamline distribution of radial and axial sections of tubes with different convex cell depth, figureFileSmall=RNz68qd6ZXsY80rP/FhMuQ==, figureFileBig=r4aXbLxCm5nxa16br4+yLA==, tableContent=null), ArticleFig(id=1261262748751675738, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图6, caption=
不同凸胞深度管径向与轴向截面的局部湍动能及流线分布, figureFileSmall=RNz68qd6ZXsY80rP/FhMuQ==, figureFileBig=r4aXbLxCm5nxa16br4+yLA==, tableContent=null), ArticleFig(id=1261262748932030817, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.7, caption=
Temperature distribution of tubes with different cell depth at x=500 m section, figureFileSmall=RZkMNCJ4mRMrslz+5H09FA==, figureFileBig=P3wUKJ0b+9krGHL9Rfybow==, tableContent=null), ArticleFig(id=1261262749062054246, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图7, caption=
不同凸胞深度在x=500 m截面处的温度分布, figureFileSmall=RZkMNCJ4mRMrslz+5H09FA==, figureFileBig=P3wUKJ0b+9krGHL9Rfybow==, tableContent=null), ArticleFig(id=1261262749158523242, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.8, caption=
Effect of different convex cell depths on the average Nusselt number inside the tube, figureFileSmall=GiwknkRp1x+cjpsplWlGpg==, figureFileBig=8H8RtyAxy0MV4Yal6eZjZA==, tableContent=null), ArticleFig(id=1261262749254992238, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图8, caption=
不同凸胞深度对管内平均Nu的影响, figureFileSmall=GiwknkRp1x+cjpsplWlGpg==, figureFileBig=8H8RtyAxy0MV4Yal6eZjZA==, tableContent=null), ArticleFig(id=1261262749393404276, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.9, caption=
Effect of different convex cell depths on the average f inside the tube, figureFileSmall=gDzJxsPZr7fmCI0tNtELww==, figureFileBig=ee+n+mRknITfoI21QFB3ew==, tableContent=null), ArticleFig(id=1261262749636673913, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图9, caption=
不同凸胞深度对管内平均f的影响, figureFileSmall=gDzJxsPZr7fmCI0tNtELww==, figureFileBig=ee+n+mRknITfoI21QFB3ew==, tableContent=null), ArticleFig(id=1261262749930275202, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.10, caption=
Effect of different convex cell depths on PEC, figureFileSmall=3Hg1pUAN5B4XDifUi8Ef8Q==, figureFileBig=owDoLRDh1vgUU617TVTzvw==, tableContent=null), ArticleFig(id=1261262750039327108, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图10, caption=
不同凸胞深度对PEC的影响, figureFileSmall=3Hg1pUAN5B4XDifUi8Ef8Q==, figureFileBig=owDoLRDh1vgUU617TVTzvw==, tableContent=null), ArticleFig(id=1261262750177739145, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.11, caption=
Velocity and streamline distribution at the cross-section of x=200 mm for different convex cell radius tubes, figureFileSmall=b693dwCRNZbDcRdkkIp9OQ==, figureFileBig=mNmDwkxWxxE0+Nbf3Qdbeg==, tableContent=null), ArticleFig(id=1261262750307762570, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图11, caption=
不同凸胞半径管在x=200 mm截面处的速度及流线分布, figureFileSmall=b693dwCRNZbDcRdkkIp9OQ==, figureFileBig=mNmDwkxWxxE0+Nbf3Qdbeg==, tableContent=null), ArticleFig(id=1261262750857216398, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.12, caption=
Local turbulent kinetic energy and flow streamline distribution in radial and axial sections of tubes with different convex cell radii, figureFileSmall=R06N2mdJuxgYUX9bf+/bcg==, figureFileBig=ueK9/7HgXVAyyAUdgnBLJg==, tableContent=null), ArticleFig(id=1261262751175983506, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图12, caption=
不同凸胞半径管径向与轴向截面的局部湍动能及流线分布, figureFileSmall=R06N2mdJuxgYUX9bf+/bcg==, figureFileBig=ueK9/7HgXVAyyAUdgnBLJg==, tableContent=null), ArticleFig(id=1261262751360532887, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.13, caption=
Effect of different convex cell radii on the average Nu inside the tube, figureFileSmall=1AXcRDsSUqiSTzpjPkKXPA==, figureFileBig=RktcFdlb+/25cVpdV5RC/Q==, tableContent=null), ArticleFig(id=1261262752933396891, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图13, caption=
不同凸胞半径对管内平均Nu的影响, figureFileSmall=1AXcRDsSUqiSTzpjPkKXPA==, figureFileBig=RktcFdlb+/25cVpdV5RC/Q==, tableContent=null), ArticleFig(id=1261262753117946273, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.14, caption=
Effect of different convex cell radii on the average f inside the tube, figureFileSmall=Mtqr0RoOQucO/u4kO2EYjg==, figureFileBig=1+PzfSrCVLatGurJFzzhSQ==, tableContent=null), ArticleFig(id=1261262753214415268, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图14, caption=
不同凸胞半径对管内平均f的影响, figureFileSmall=Mtqr0RoOQucO/u4kO2EYjg==, figureFileBig=1+PzfSrCVLatGurJFzzhSQ==, tableContent=null), ArticleFig(id=1261262753315078567, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.15, caption=
Influence of different cell radii on PEC, figureFileSmall=mH0nlRFns1fL63PvmAzIvg==, figureFileBig=LLqyuH6RHB7kfz4ZrE83Ug==, tableContent=null), ArticleFig(id=1261262753499627949, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图15, caption=
不同凸胞半径对PEC的影响, figureFileSmall=mH0nlRFns1fL63PvmAzIvg==, figureFileBig=LLqyuH6RHB7kfz4ZrE83Ug==, tableContent=null), ArticleFig(id=1261262753763869106, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.16, caption=
Local turbulent kinetic energy and streamline distribution in the axial cross-section of tubes with different convex cell spacing, figureFileSmall=8gkY/aQoxO/O9Pzd0WUx6w==, figureFileBig=r272s4zw2HgKh1NbU4yu5A==, tableContent=null), ArticleFig(id=1261262754040693176, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图16, caption=
不同凸胞间距管轴向截面的局部湍流动能及流线分布, figureFileSmall=8gkY/aQoxO/O9Pzd0WUx6w==, figureFileBig=r272s4zw2HgKh1NbU4yu5A==, tableContent=null), ArticleFig(id=1261262754149745083, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.17, caption=
Effect of different convex cell spacing on the average Nu inside the tube, figureFileSmall=sjF5RG00toh9wLB6mkPKxw==, figureFileBig=j8pwjM0bfI1ad0L//Gy4YQ==, tableContent=null), ArticleFig(id=1261262754275574206, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图17, caption=
不同凸胞间距对管内平均的Nu影响, figureFileSmall=sjF5RG00toh9wLB6mkPKxw==, figureFileBig=j8pwjM0bfI1ad0L//Gy4YQ==, tableContent=null), ArticleFig(id=1261262754413986242, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.18, caption=
Effect of different convex cell spacing on the average f inside the tube, figureFileSmall=fpAS9tbOUnc4iTBocnCIdg==, figureFileBig=pWrWMBZXJrwenyL27uBSEA==, tableContent=null), ArticleFig(id=1261262754594341320, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图18, caption=
不同凸胞间距对管内平均的f影响, figureFileSmall=fpAS9tbOUnc4iTBocnCIdg==, figureFileBig=pWrWMBZXJrwenyL27uBSEA==, tableContent=null), ArticleFig(id=1261262754711781834, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Fig.19, caption=
Influence of different convex cell spacing on PEC, figureFileSmall=HbjW/dUv2n7RoQtWZ97msg==, figureFileBig=V2Nz1w8p/lSLqmmiv5S1YA==, tableContent=null), ArticleFig(id=1261262754988605904, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=图19, caption=
不同凸胞间距对PEC的影响, figureFileSmall=HbjW/dUv2n7RoQtWZ97msg==, figureFileBig=V2Nz1w8p/lSLqmmiv5S1YA==, tableContent=null), ArticleFig(id=1261262755177349588, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Table 1, caption=
Geometrical parameters of annular inner rib convex cell
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 尺寸/mm |
| 管道整体长度L | 800 |
| 进口段长度Lin | 200 |
| 出口段长度Lout | 100 |
| 测试段长度Ltest | 500 |
| 管道内径D | 20 |
| 凸胞深度h | 1、1.5、2 |
| 凸胞半径r | 2、3、4 |
| 凸胞个数N | 4、5、6 |
| 凸胞间距P | 20、30、40 |
), ArticleFig(id=1261262755278012888, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=表1, caption=
环形内肋凸胞管几何参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 尺寸/mm |
| 管道整体长度L | 800 |
| 进口段长度Lin | 200 |
| 出口段长度Lout | 100 |
| 测试段长度Ltest | 500 |
| 管道内径D | 20 |
| 凸胞深度h | 1、1.5、2 |
| 凸胞半径r | 2、3、4 |
| 凸胞个数N | 4、5、6 |
| 凸胞间距P | 20、30、40 |
), ArticleFig(id=1261262755529671131, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Table 2, caption=
Physical parameters of air
, figureFileSmall=null, figureFileBig=null, tableContent=
| 空气的物性参数 | 数值 |
| 密度ρ/(kg·m-3) | 1.177 |
| 定压比热容Cр/(kJ·kg-1·K-1) | 1.005 |
| 导热系数λ/(W·m-1·K-1) | 0.026 46 |
| 动力黏度μ/(kg·m-1·s-1) | 1.845×10-5 |
| 普朗特常数Pr | 0.701 6 |
), ArticleFig(id=1261262755823272414, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=表2, caption=
空气的物性参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 空气的物性参数 | 数值 |
| 密度ρ/(kg·m-3) | 1.177 |
| 定压比热容Cр/(kJ·kg-1·K-1) | 1.005 |
| 导热系数λ/(W·m-1·K-1) | 0.026 46 |
| 动力黏度μ/(kg·m-1·s-1) | 1.845×10-5 |
| 普朗特常数Pr | 0.701 6 |
), ArticleFig(id=1261262757396136419, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=EN, label=Table 3, caption=
Grid independence verification(Re=14 000)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 网格数量 | 努塞尔数 | 努塞尔数 偏差/% | 摩擦系数 | 摩擦系数 偏差/% |
| 1 | 436 995 | 67.819 47 | -6.29 | 0.248 704 | 9.28 |
| 2 | 828 541 | 69.394 48 | -4.12 | 0.235 324 | 3.77 |
| 3 | 1 752 701 | 72.243 90 | -0.18 | 0.228 075 | 0.58 |
| 4 | 2 362 208 | 72.429 80 | — | 0.227 963 | 0.53 |
| 5 | 2 883 613 | 72.373 88 | — | 0.226 764 | — |
), ArticleFig(id=1261262757534548454, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261262696276738844, language=CN, label=表3, caption=
网格无关性验证(Re=14 000)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 网格数量 | 努塞尔数 | 努塞尔数 偏差/% | 摩擦系数 | 摩擦系数 偏差/% |
| 1 | 436 995 | 67.819 47 | -6.29 | 0.248 704 | 9.28 |
| 2 | 828 541 | 69.394 48 | -4.12 | 0.235 324 | 3.77 |
| 3 | 1 752 701 | 72.243 90 | -0.18 | 0.228 075 | 0.58 |
| 4 | 2 362 208 | 72.429 80 | — | 0.227 963 | 0.53 |
| 5 | 2 883 613 | 72.373 88 | — | 0.226 764 | — |
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