Article(id=1213131709479043556, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1213131702797517129, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202307140, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1690214400000, receivedDateStr=2023-07-25, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1767162738437, onlineDateStr=2025-12-31, pubDate=1708790400000, pubDateStr=2024-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1767162738437, onlineIssueDateStr=2025-12-31, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1767162738437, creator=13701087609, updateTime=1767162738437, updator=13701087609, issue=Issue{id=1213131702797517129, tenantId=1146029695717560320, journalId=1210938733613449225, year='2024', volume='53', issue='2', pageStart='1', pageEnd='198', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1767162736844, creator=13701087609, updateTime=1767168616029, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1213156361978954089, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1213131702797517129, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1213156361978954090, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1213131702797517129, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=124, endPage=132, ext={EN=ArticleExt(id=1213131710431150596, articleId=1213131709479043556, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Flow calculation method of supercritical carbon dioxide centrifugal compressor based on streamline curvature method, columnId=1211002405299294959, journalTitle=Thermal Power Generation, columnName=Thermal energy science research, runingTitle=null, highlight=null, articleAbstract=
The real gas characteristics of supercritical carbon dioxide (S-CO2) make it difficult to obtain stable convergence results in three-dimensional numerical simulation of S-CO2 centrifugal compressor, and the time cost of numerical calculation further increases the difficulty of compressor design optimization. To establish a flow calculation method suitable for S-CO2 centrifugal compressor, three-dimensional numerical simulation is carried out on the compressor to obtain the flow field information and corresponding loss distribution. Then, the one-dimensional loss model is superimposed in the conventional flow line curvature method, and the CO2 compression factor is calculated in segments along the flow line, thus to reflect the real gas compression process. Comparison between the calculation results and the three-dimensional numerical simulation results shows that, the distribution of meridian relative velocity field and enthalpy obtained by streamline curvature method are consistent with the computational Fluid dynamics (CFD) results. The temperature and pressure data at the blade outlet are close to the CFD results, with errors of 0.23% and 1.08%, respectively, and a difference of 1.5% in total static isentropic efficiency. The results indicate that the performance parameters of S-CO2 centrifugal compressor impeller can be obtained quickly and accurately by using streamline curvature method.
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超临界二氧化碳(S-CO2)的真实气体特性使得开展S-CO2离心压缩机的三维数值模拟难以获得稳定的收敛结果,同时,数值计算的时间成本进一步增加了压缩机设计优化的难度。对此,本文首先对压缩机开展三维数值模拟,得到流场信息及对应的损失分布,然后在传统流线曲率法中叠加一维损失模型,并沿流线分段计算CO2压缩因子,以此反映真实气体的压缩过程,建立适用于S-CO2离心压缩机的通流计算方法。将通流计算结果与三维数值模拟结果进行对比后发现:流线曲率法得到的子午面相对速度场分布和焓分布与计算流体动力学(computational fluid dynamics,CFD)结果基本一致;叶片出口温压数据与CFD结果接近,误差分别为0.23%和1.08%,总静等熵效率相差1.5%。结果表明,采用流线曲率法的通流计算可以快速获得较准确的S-CO2离心压缩机叶轮性能参数。
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Schematic diagram of the relative velocity component of the fluid in flow part of the centrifugal compressor, figureFileSmall=SmT0OLairT94+bsMPqes1Q==, figureFileBig=I3e4BYayOsJ6e74851pIhA==, tableContent=null), ArticleFig(id=1213131719281132512, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图1, caption=
离心压缩机通流部分流体相对速度分量示意, figureFileSmall=SmT0OLairT94+bsMPqes1Q==, figureFileBig=I3e4BYayOsJ6e74851pIhA==, tableContent=null), ArticleFig(id=1213131720652669930, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Fig.2, caption=
Solution process for flow calculation, figureFileSmall=Ca2KdWG3XysNGI65oMmdbA==, figureFileBig=hq/KBOJuwcpzgOwxlwEW4Q==, tableContent=null), ArticleFig(id=1213131720786887666, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图2, caption=
通流计算求解过程, figureFileSmall=Ca2KdWG3XysNGI65oMmdbA==, figureFileBig=hq/KBOJuwcpzgOwxlwEW4Q==, tableContent=null), ArticleFig(id=1213131720916911094, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Fig.3, caption=
Schematic diagram of the calculation process for fluid density, figureFileSmall=+QsTfjD+htdXWUWflWbw9w==, figureFileBig=wIwCaj3NkuIsMlUNlnRSHw==, tableContent=null), ArticleFig(id=1213131721021768701, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图3, caption=
流体密度计算过程示意, figureFileSmall=+QsTfjD+htdXWUWflWbw9w==, figureFileBig=wIwCaj3NkuIsMlUNlnRSHw==, tableContent=null), ArticleFig(id=1213131721122430979, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Fig.4, caption=
The Sandia laboratory’s centrifugal compressor model and meridian flow surface calculation node division, figureFileSmall=xcejKJoB0NoYUTWH1zb2Gg==, figureFileBig=bT40q8XP7EObkMc0O+uJZw==, tableContent=null), ArticleFig(id=1213131721269231626, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图4, caption=
Sandia实验室离心压缩机模型与子午流面计算节点划分, figureFileSmall=xcejKJoB0NoYUTWH1zb2Gg==, figureFileBig=bT40q8XP7EObkMc0O+uJZw==, tableContent=null), ArticleFig(id=1213131721374089232, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Fig.5, caption=
Comparison between the results predicted by loss model and the experimental results, figureFileSmall=3Uyi3aKfKvvEUsmZVbyeeQ==, figureFileBig=VskP6HOwLwQigp3YTCDu1A==, tableContent=null), ArticleFig(id=1213131721457975317, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图5, caption=
损失模型预测值与实验结果对比, figureFileSmall=3Uyi3aKfKvvEUsmZVbyeeQ==, figureFileBig=VskP6HOwLwQigp3YTCDu1A==, tableContent=null), ArticleFig(id=1213131721558638615, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Fig.6, caption=
Schematic diagram of total distribution of each loss, figureFileSmall=nUWCR78yHAB3yUkY5ltpCQ==, figureFileBig=yTLGjI0uTPGrbk/oLQUSuw==, tableContent=null), ArticleFig(id=1213131721705439264, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图6, caption=
各项损失总和分布示意, figureFileSmall=nUWCR78yHAB3yUkY5ltpCQ==, figureFileBig=yTLGjI0uTPGrbk/oLQUSuw==, tableContent=null), ArticleFig(id=1213131721856434216, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Fig.7, caption=
The simulated performance curve and experimental data of the 55 000 r/min compressor, figureFileSmall=pDTafP8IuL3vJCHxIKFZfw==, figureFileBig=BmUfdTQMCdw/YQBMR0udsg==, tableContent=null), ArticleFig(id=1213131721982263340, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图7, caption=
55 000 r/min压缩机数值模拟性能曲线与实验值对比, figureFileSmall=pDTafP8IuL3vJCHxIKFZfw==, figureFileBig=BmUfdTQMCdw/YQBMR0udsg==, tableContent=null), ArticleFig(id=1213131722112286769, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Fig.8, caption=
Distribution of relative velocity on meridian plane, figureFileSmall=AWGcSyVEsItINd5ZvrBVoA==, figureFileBig=5MWrOgYtLFoyw7kBlb2VKw==, tableContent=null), ArticleFig(id=1213131722309419064, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图8, caption=
子午面相对速度分布, figureFileSmall=AWGcSyVEsItINd5ZvrBVoA==, figureFileBig=5MWrOgYtLFoyw7kBlb2VKw==, tableContent=null), ArticleFig(id=1213131722405888058, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Fig.9, caption=
Meridian plane total enthalpy distribution, figureFileSmall=2Uyi8bKooKmah0ueUeB6yg==, figureFileBig=bAGMDQybEZV/xde6HAd4sQ==, tableContent=null), ArticleFig(id=1213131722498162750, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图9, caption=
子午面总焓分布, figureFileSmall=2Uyi8bKooKmah0ueUeB6yg==, figureFileBig=bAGMDQybEZV/xde6HAd4sQ==, tableContent=null), ArticleFig(id=1213131722636574788, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Fig.10, caption=
Meridian plane density distribution, figureFileSmall=0dAaxJB/jsjkLpBTyiWOWQ==, figureFileBig=svLx5IOTUa/PMgXx+JFzTA==, tableContent=null), ArticleFig(id=1213131722758209607, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图10, caption=
子午面密度分布, figureFileSmall=0dAaxJB/jsjkLpBTyiWOWQ==, figureFileBig=svLx5IOTUa/PMgXx+JFzTA==, tableContent=null), ArticleFig(id=1213131722871455820, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Fig.11, caption=
The numerical simulation results are compared with the temperature and pressure changes obtained by the streamline curvature method, figureFileSmall=nzPquaoLgU656Ufc7fgdsg==, figureFileBig=GMZ3wuujwROaxYWwA3VKTw==, tableContent=null), ArticleFig(id=1213131722972119117, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=图11, caption=
CFD模拟结果与流线曲率法得到的温度压力变化, figureFileSmall=nzPquaoLgU656Ufc7fgdsg==, figureFileBig=GMZ3wuujwROaxYWwA3VKTw==, tableContent=null), ArticleFig(id=1213131723085365328, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Tab.1, caption=
Selection of various loss models
, figureFileSmall=null, figureFileBig=null, tableContent=
| 损失类型 | 损失模型选择 | 参考文献 |
|---|
| 内部损失 | 进口冲击损失 | | Conrad[23] |
| 叶片载荷损失 | | Coppage[24] |
| 尾迹混流损失 | | Micbeal[25] |
| 表面摩擦损失 | | Jansen[26] |
| 叶顶间隙损失 | | Jensen[26] |
| 外部损失 | 轮盘摩擦损失 | | Daily and Nece[27] |
| 外部回流损失 | | Oh[28] |
| 外部泄漏损失 | | Aungier[29] |
), ArticleFig(id=1213131723227971671, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=表1, caption=
各项损失模型选取
, figureFileSmall=null, figureFileBig=null, tableContent=
| 损失类型 | 损失模型选择 | 参考文献 |
|---|
| 内部损失 | 进口冲击损失 | | Conrad[23] |
| 叶片载荷损失 | | Coppage[24] |
| 尾迹混流损失 | | Micbeal[25] |
| 表面摩擦损失 | | Jansen[26] |
| 叶顶间隙损失 | | Jensen[26] |
| 外部损失 | 轮盘摩擦损失 | | Daily and Nece[27] |
| 外部回流损失 | | Oh[28] |
| 外部泄漏损失 | | Aungier[29] |
), ArticleFig(id=1213131723353800797, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Tab.2, caption=
The losses calculated by one-dimensional loss model
, figureFileSmall=null, figureFileBig=null, tableContent=
| 损失 | 数值 |
|---|
| 冲击损失 | 0.37 |
| 叶片载荷损失 | 106.22 |
| 尾迹混合损失 | 86.170 059 |
| 叶片表面摩擦损失 | 378.323 58 |
| 叶顶间隙损失 | 417.235 24 |
| 轮盘摩擦损失 | 33.69 |
| 回流损失 | 341.55 |
), ArticleFig(id=1213131723467047007, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=表2, caption=
一维损失模型计算的各项损失
, figureFileSmall=null, figureFileBig=null, tableContent=
| 损失 | 数值 |
|---|
| 冲击损失 | 0.37 |
| 叶片载荷损失 | 106.22 |
| 尾迹混合损失 | 86.170 059 |
| 叶片表面摩擦损失 | 378.323 58 |
| 叶顶间隙损失 | 417.235 24 |
| 轮盘摩擦损失 | 33.69 |
| 回流损失 | 341.55 |
), ArticleFig(id=1213131723563516008, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=EN, label=Tab.3, caption=
Comparison between streamline curvature method and CFD calculation of impeller performance
, figureFileSmall=null, figureFileBig=null, tableContent=
| 叶片出口温度/K | 叶片出口压力/MPa | 压比 | 总静等熵效率/% |
|---|
| 流线曲率法 | 314.94 | 8.25 | 1.07 | 50.3 |
| CFD模拟 | 315.65 | 8.34 | 1.10 | 51.8 |
), ArticleFig(id=1213131723697733744, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1213131709479043556, language=CN, label=表3, caption=
流线曲率法与CFD计算叶轮性能对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 叶片出口温度/K | 叶片出口压力/MPa | 压比 | 总静等熵效率/% |
|---|
| 流线曲率法 | 314.94 | 8.25 | 1.07 | 50.3 |
| CFD模拟 | 315.65 | 8.34 | 1.10 | 51.8 |
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