Article(id=1148011762177274774, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1149298831252079541, articleNumber=null, orderNo=null, doi=10.7654/j.issn.2097-1974.20240205, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1615392000000, receivedDateStr=2021-03-11, revisedDate=1621785600000, revisedDateStr=2021-05-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1751636933130, onlineDateStr=2025-07-04, pubDate=1713974400000, pubDateStr=2024-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1751636933130, onlineIssueDateStr=2025-07-04, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1751636933130, creator=13701087609, updateTime=1751636933130, updator=13701087609, issue=Issue{id=1149298831252079541, tenantId=1146029695717560320, journalId=1146119989267898375, year='2024', volume='47', issue='2', pageStart='1', pageEnd='106', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1751943794309, creator=13701087609, updateTime=1754895895552, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1161680841353552315, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1149298831252079541, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1161680841353552316, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1149298831252079541, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=32, endPage=41, ext={EN=ArticleExt(id=1148011762361824165, articleId=1148011762177274774, tenantId=1146029695717560320, journalId=1146119989267898375, language=EN, title=Analysis on Turbine Blade Surface Microstructure based on CFD, columnId=1154057566893105509, journalTitle=Missiles and Space Vehicles, columnName=Propulsion, runingTitle=null, highlight=null, articleAbstract=
The flow field simulation and scanning electron microscope observation methods are used to analyze the surface micromorphology of a certain type of turbine blade before and after operation, and the effect of high temperature and high pressure environment on the surface morphology of the blade is investigated. First, in order to improve the calculation efficiency, according to the blade form, a periodic symmetric CFD model of the turbine blade flow field is established, and the temperature and pressure of the flow field are calculated and analyzed by the finite volume method. Then, the surface of the working blade is measured by scanning electron microscope. The morphology is observed to analyze the form of micro-defects on the blade surface. Finally, based on the results of simulation and experimental observations, the reasons for the blade defects and the factors affecting the changes of the blade surface microstructure are analyzed. The results show that the temperature of the leading edge of the blade reaches the highest ${860}\mathrm{\;K}$. Under the combined effect of geometric structure and wave system, the flow characteristics of the flow field near the leading and trailing edge, blade tip, and hub are complicated, and the temperature and pressure distribution in the flow channel is inhomogeneous. The hub near the trailing edge of the blade appears with a cross-grain/inter-grain mixed mode of microcracks about ${180\mu }\mathrm{m}$ in length, and an inclusion crack with a length of about ${30\mu }\mathrm{m}$ appears at the tip of the trailing edge. This is due to the thermal stress of the blade, the metallographic transformation of the blade surface, and the oxidation, hydrogen embrittlement and other effects. According to the actual task of the turbopump, the turbopump ground hot test program should be reasonably arranged, especially in the shutdown stage, consider whether to take atmospheric environmental isolation measures for the cooling of the turbine blades. The current work can provide a reference for the life evaluation of liquid rocket engine turbine blades.
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利用流场仿真和扫描电子显微镜观测的方法,对某型涡轮叶片工作前后的表面微形貌进行了分析,研究了高温高压环境对叶片表面形貌变化的影响。首先为了提高计算效率,根据叶片形式,建立了涡轮叶片流场的周期性对称CFD模型,并利用有限体积法对流场的温度和压力进行计算分析;然后利用扫描电镜对工作叶片的表面形貌进行观测,分析叶片表面微缺陷形式;最后根据仿真与试验观测结果,分析了叶片缺陷产生的原因和影响叶片表面微结构变化的因素。结果表明:叶片前缘温度达到最高的${860}\mathrm{\;K}$,在几何结构和波系的共同作用下,叶片前后缘、叶尖、叶根附近流场流动特性复杂,流道内温度和压力分布不均匀;叶片后缘根部出现长约${180\mu }\mathrm{m}$的穿晶/沿晶混合模式的微裂纹,后缘叶尖处有长约${30\mu }\mathrm{m}$的夹杂物裂纹出现,这是叶片热应力、叶片表面金相转变、氧化、氢脆等共同作用的结果;应根据涡轮泵的实际任务情况对涡轮泵地面热试车程序进行合理的安排,尤其在关机阶段要考虑是否对涡轮叶片的冷却采取大气环境隔离措施。研究可为液体火箭发动机涡轮叶片寿命评估提供参考。
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刘士杰(1985—),男,博士,高级工程师,主要研究方向为液体火箭发动机可重复使用性、疲劳与断裂、金属材料力学本构建模及有限元实现。
李伟(1982—),男,高级工程师,主要研究方向为液体火箭发动机总装设计。
王慧(1973-),女,博士,研究员,主要研究方向为液体火箭发动机强度与振动、故障诊断等。
梁国柱(1966—),男,博士,教授,主要研究方向为火箭发动机设计、仿真与优化集成,火箭发动机点火与燃烧动态过程实验研究,运载器增压输送系统动力学、航天飞行器姿轨控发动机系统总体设计与实验研究。
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刘士杰(1985—),男,博士,高级工程师,主要研究方向为液体火箭发动机可重复使用性、疲劳与断裂、金属材料力学本构建模及有限元实现。
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李伟(1982—),男,高级工程师,主要研究方向为液体火箭发动机总装设计。
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王慧(1973-),女,博士,研究员,主要研究方向为液体火箭发动机强度与振动、故障诊断等。
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王慧(1973-),女,博士,研究员,主要研究方向为液体火箭发动机强度与振动、故障诊断等。
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梁国柱(1966—),男,博士,教授,主要研究方向为火箭发动机设计、仿真与优化集成,火箭发动机点火与燃烧动态过程实验研究,运载器增压输送系统动力学、航天飞行器姿轨控发动机系统总体设计与实验研究。
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Flow field characteristics between adjacent blades, figureFileSmall=tlBNyBS6th73OgN5lgAJ3w==, figureFileBig=fP/09SxbWIx4P9WHoMz6yg==, tableContent=null), ArticleFig(id=1197274549550100599, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=图9, caption=
相邻叶片间流场特性, figureFileSmall=tlBNyBS6th73OgN5lgAJ3w==, figureFileBig=fP/09SxbWIx4P9WHoMz6yg==, tableContent=null), ArticleFig(id=1197274550229577848, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Fig. 10, caption=
The change of temperature along the radial direction, figureFileSmall=Qg4NKmGHcFdFRWec6GMhyw==, figureFileBig=/IiPYDAK6WXNQLHt6CRgTw==, tableContent=null), ArticleFig(id=1197274550699339897, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=图10, caption=
温度沿径向的变化, figureFileSmall=Qg4NKmGHcFdFRWec6GMhyw==, figureFileBig=/IiPYDAK6WXNQLHt6CRgTw==, tableContent=null), ArticleFig(id=1197274551085215866, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Fig. 11, caption=
Observation of blade surface microstructure, figureFileSmall=HXx07UDAv1eg8uT2vq59pQ==, figureFileBig=EcGQ/apTQWPCf5Oa9027RA==, tableContent=null), ArticleFig(id=1197274551307513979, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=图11, caption=
叶片表面微结构观察结果, figureFileSmall=HXx07UDAv1eg8uT2vq59pQ==, figureFileBig=EcGQ/apTQWPCf5Oa9027RA==, tableContent=null), ArticleFig(id=1197274551659835516, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Fig. 12, caption=
Microstructure of the leading and trailing edge of the blade, figureFileSmall=DKEVjWqd6d6/nXKFGh0MGQ==, figureFileBig=t2kfGWlDEK1qKukR2msVbQ==, tableContent=null), ArticleFig(id=1197274551940853885, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=图12, caption=
叶片前后缘微结构, figureFileSmall=DKEVjWqd6d6/nXKFGh0MGQ==, figureFileBig=t2kfGWlDEK1qKukR2msVbQ==, tableContent=null), ArticleFig(id=1197274552528056446, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Fig. 13, caption=
Blade surface morphology from Ref. 13, figureFileSmall=iB+Din7SIvgUxlDRaKkXXg==, figureFileBig=8BBDlfxFIE2BmZs9RaSkXw==, tableContent=null), ArticleFig(id=1197274553014595711, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=图13, caption=
文献[13]中的叶片表面形貌, figureFileSmall=iB+Din7SIvgUxlDRaKkXXg==, figureFileBig=8BBDlfxFIE2BmZs9RaSkXw==, tableContent=null), ArticleFig(id=1197274553580826752, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Fig. 14, caption=
Blade leading edge microstructure, figureFileSmall=OeLPVsFdW3KPZYt3gQv68w==, figureFileBig=zS9BPpMt7kOI72iWdxtHCQ==, tableContent=null), ArticleFig(id=1197274553937342593, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=图14, caption=
叶片前缘微结构, figureFileSmall=OeLPVsFdW3KPZYt3gQv68w==, figureFileBig=zS9BPpMt7kOI72iWdxtHCQ==, tableContent=null), ArticleFig(id=1197274554201583746, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Fig. 15, caption=
Microstructure of leading edge pressure side of blade, figureFileSmall=n2EDP4kFbqjDjpZ1YfukrA==, figureFileBig=B1Q7p92pm+CUgVL1nyojNQ==, tableContent=null), ArticleFig(id=1197274554419687555, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=图15, caption=
压力面叶身中部区域表面微结构, figureFileSmall=n2EDP4kFbqjDjpZ1YfukrA==, figureFileBig=B1Q7p92pm+CUgVL1nyojNQ==, tableContent=null), ArticleFig(id=1197274554671345796, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Fig. 16, caption=
Micro cracks on trailing edge of blade, figureFileSmall=69Ymlr+Iddq7f3LZwJ6zpQ==, figureFileBig=+O3ODDpZXDPuift7IXdi3w==, tableContent=null), ArticleFig(id=1197274555178856581, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=图16, caption=
叶片后缘微裂纹, figureFileSmall=69Ymlr+Iddq7f3LZwJ6zpQ==, figureFileBig=+O3ODDpZXDPuift7IXdi3w==, tableContent=null), ArticleFig(id=1197274555820585094, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Tab. 1, caption=
Governing equations of SST turbulence based on $k -\omega$model, figureFileSmall=null, figureFileBig=null, tableContent=
| 方程名称 | $\phi$ | 扩散系数 | 源项 |
|---|
| 质量守恒 | 1 | 0 | 0 |
| $x$-动量守恒 | $u$ | ${\mu }_{\text{eff }}= \mu +{\mu }_{\mathrm{t}}$ | $-\frac{\partial p}{\partial x}+ \frac{\partial }{\partial x}\left({{\mu }_{\text{eff }}\frac{\partial u}{\partial x}}\right)+ \frac{\partial }{\partial y}\left({{\mu }_{\text{eff }}\frac{\partial v}{\partial x}}\right)+ \frac{\partial }{\partial z}\left({{\mu }_{\text{eff }}\frac{\partial w}{\partial x}}\right)+ {S}_{u}$ |
| $y$-动量守恒 | $v$ | ${\mu }_{\text{eff }}= \mu +{\mu }_{\mathrm{t}}$ | $-\frac{\partial p}{\partial y}+ \frac{\partial }{\partial x}\left({{\mu }_{\text{eff }}\frac{\partial u}{\partial x}}\right)+ \frac{\partial }{\partial y}\left({{\mu }_{\text{eff }}\frac{\partial v}{\partial x}}\right)+ \frac{\partial }{\partial z}\left({{\mu }_{\text{eff }}\frac{\partial w}{\partial x}}\right)+ {S}_{v}$ |
| $z$-动量守恒 | $W$ | ${\mu }_{\text{eff }}= \mu +{\mu }_{\mathrm{t}}$ | $-\frac{\partial p}{\partial z}+ \frac{\partial }{\partial x}\left({{\mu }_{\mathrm{{eff}}}\frac{\partial u}{\partial x}}\right)+ \frac{\partial }{\partial y}\left({{\mu }_{\mathrm{{eff}}}\frac{\partial v}{\partial x}}\right)+ \frac{\partial }{\partial z}\left({{\mu }_{\mathrm{{eff}}}\frac{\partial w}{\partial x}}\right)+ {S}_{w}$ |
| 能量守恒 | $T$ | $\frac{\mu }{Pr}+ \frac{{\mu }_{\mathrm{t}}}{{\sigma }_{T}}$ | 由特定问题决定 |
| 湍动能 | $k$ | $\mu +\frac{{\mu }_{\mathrm{t}}}{{\sigma }_{k}}$ | ${\widetilde{P}}_{k}- {\beta }^{* }{\rho \omega k}$ |
| 比耗散率 | $\omega$ | $\mu +\frac{{\mu }_{\mathrm{t}}}{{\sigma }_{\omega }}$ | $\frac{\rho \gamma }{{\mu }_{t}}{P}_{k}- {\beta \rho }{\omega }^{2}+ {2\rho }\left({1 -{F}_{1}}\right)\frac{{\sigma }_{\omega 2}}{\omega }\frac{\partial k}{\partial {x}_{j}}\frac{\partial \omega }{\partial {x}_{j}}$ |
), ArticleFig(id=1197274556424564871, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=表1, caption=
基于$k -\omega$模型的SST湍流模型的控制方程, figureFileSmall=null, figureFileBig=null, tableContent=
| 方程名称 | $\phi$ | 扩散系数 | 源项 |
|---|
| 质量守恒 | 1 | 0 | 0 |
| $x$-动量守恒 | $u$ | ${\mu }_{\text{eff }}= \mu +{\mu }_{\mathrm{t}}$ | $-\frac{\partial p}{\partial x}+ \frac{\partial }{\partial x}\left({{\mu }_{\text{eff }}\frac{\partial u}{\partial x}}\right)+ \frac{\partial }{\partial y}\left({{\mu }_{\text{eff }}\frac{\partial v}{\partial x}}\right)+ \frac{\partial }{\partial z}\left({{\mu }_{\text{eff }}\frac{\partial w}{\partial x}}\right)+ {S}_{u}$ |
| $y$-动量守恒 | $v$ | ${\mu }_{\text{eff }}= \mu +{\mu }_{\mathrm{t}}$ | $-\frac{\partial p}{\partial y}+ \frac{\partial }{\partial x}\left({{\mu }_{\text{eff }}\frac{\partial u}{\partial x}}\right)+ \frac{\partial }{\partial y}\left({{\mu }_{\text{eff }}\frac{\partial v}{\partial x}}\right)+ \frac{\partial }{\partial z}\left({{\mu }_{\text{eff }}\frac{\partial w}{\partial x}}\right)+ {S}_{v}$ |
| $z$-动量守恒 | $W$ | ${\mu }_{\text{eff }}= \mu +{\mu }_{\mathrm{t}}$ | $-\frac{\partial p}{\partial z}+ \frac{\partial }{\partial x}\left({{\mu }_{\mathrm{{eff}}}\frac{\partial u}{\partial x}}\right)+ \frac{\partial }{\partial y}\left({{\mu }_{\mathrm{{eff}}}\frac{\partial v}{\partial x}}\right)+ \frac{\partial }{\partial z}\left({{\mu }_{\mathrm{{eff}}}\frac{\partial w}{\partial x}}\right)+ {S}_{w}$ |
| 能量守恒 | $T$ | $\frac{\mu }{Pr}+ \frac{{\mu }_{\mathrm{t}}}{{\sigma }_{T}}$ | 由特定问题决定 |
| 湍动能 | $k$ | $\mu +\frac{{\mu }_{\mathrm{t}}}{{\sigma }_{k}}$ | ${\widetilde{P}}_{k}- {\beta }^{* }{\rho \omega k}$ |
| 比耗散率 | $\omega$ | $\mu +\frac{{\mu }_{\mathrm{t}}}{{\sigma }_{\omega }}$ | $\frac{\rho \gamma }{{\mu }_{t}}{P}_{k}- {\beta \rho }{\omega }^{2}+ {2\rho }\left({1 -{F}_{1}}\right)\frac{{\sigma }_{\omega 2}}{\omega }\frac{\partial k}{\partial {x}_{j}}\frac{\partial \omega }{\partial {x}_{j}}$ |
), ArticleFig(id=1197274557057904776, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Tab. 2, caption=
Constants of $k -\varepsilon$and $k -\omega$model, figureFileSmall=null, figureFileBig=null, tableContent=
| ${\sigma }_{k1}$ | ${\sigma }_{\omega 1}$ | $\kappa$ | ${\alpha }_{1}$ | ${\beta }_{1}$ | ${\beta }^{* }$ | ${c}_{1}$ |
|---|
| 1.176 | 2.000 | 0.41 | 0.5532 | 0.0750 | 0.09 | 10 |
| ${\sigma }_{k2}$ | ${\sigma }_{\omega 2}$ | $\kappa$ | ${a}_{2}$ | ${\beta }_{2}$ | ${\beta }^{* }$ | - |
| 1.000 | 1.168 | 0.41 | 0.4403 | 0.09 | 0.09 | - |
), ArticleFig(id=1197274557624135817, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=表2, caption=
${k}- \varepsilon$模型和$k -\omega$模型常数, figureFileSmall=null, figureFileBig=null, tableContent=
| ${\sigma }_{k1}$ | ${\sigma }_{\omega 1}$ | $\kappa$ | ${\alpha }_{1}$ | ${\beta }_{1}$ | ${\beta }^{* }$ | ${c}_{1}$ |
|---|
| 1.176 | 2.000 | 0.41 | 0.5532 | 0.0750 | 0.09 | 10 |
| ${\sigma }_{k2}$ | ${\sigma }_{\omega 2}$ | $\kappa$ | ${a}_{2}$ | ${\beta }_{2}$ | ${\beta }^{* }$ | - |
| 1.000 | 1.168 | 0.41 | 0.4403 | 0.09 | 0.09 | - |
), ArticleFig(id=1197274558228115594, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Tab. 3, caption=
Mass fraction of combustion products per kg, figureFileSmall=null, figureFileBig=null, tableContent=
| 燃烧产物 | 质量分数 | 燃烧产物 | 质量分数 |
|---|
| ${\mathrm{H}}_{2}$ | 0.600 | H | 0.000 |
| ${\mathrm{O}}_{2}$ | 0.000 | O | 0.000 |
| ${\mathrm{H}}_{2}\mathrm{O}$ | 0.400 | OH | 0.000 |
), ArticleFig(id=1197274558869844107, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=表3, caption=
每千克燃烧产物的质量分数, figureFileSmall=null, figureFileBig=null, tableContent=
| 燃烧产物 | 质量分数 | 燃烧产物 | 质量分数 |
|---|
| ${\mathrm{H}}_{2}$ | 0.600 | H | 0.000 |
| ${\mathrm{O}}_{2}$ | 0.000 | O | 0.000 |
| ${\mathrm{H}}_{2}\mathrm{O}$ | 0.400 | OH | 0.000 |
), ArticleFig(id=1197274559465435276, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=EN, label=Tab. 4, caption=
Thermodynamic parameters of combustion products, figureFileSmall=null, figureFileBig=null, tableContent=
| ${T}_{\infty }^{0}/\mathrm{K}$ | $R/\left\lbrack {\mathrm{{kJ}}\cdot {\left(\mathrm{{mol}}\cdot \mathrm{K}\right)}^{-1}}\right\rbrack$ | ${C}_{\mathrm{p}}/\left\lbrack {\mathrm{J}\cdot {\left(\mathrm{{kg}}\cdot \mathrm{K}\right)}^{-1}}\right\rbrack$ | ${\gamma }_{\mathrm{{pv}}}$ |
|---|
| 865.623 | 2.661 | 9664.599 | 1.380 |
), ArticleFig(id=1197274560149106829, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011762177274774, language=CN, label=表4, caption=
燃烧产物的热力学参数, figureFileSmall=null, figureFileBig=null, tableContent=
| ${T}_{\infty }^{0}/\mathrm{K}$ | $R/\left\lbrack {\mathrm{{kJ}}\cdot {\left(\mathrm{{mol}}\cdot \mathrm{K}\right)}^{-1}}\right\rbrack$ | ${C}_{\mathrm{p}}/\left\lbrack {\mathrm{J}\cdot {\left(\mathrm{{kg}}\cdot \mathrm{K}\right)}^{-1}}\right\rbrack$ | ${\gamma }_{\mathrm{{pv}}}$ |
|---|
| 865.623 | 2.661 | 9664.599 | 1.380 |
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