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Article(id=1319293571107238440, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1319293461287780384, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.10.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1745942400000, receivedDateStr=2025-04-30, revisedDate=1756051200000, revisedDateStr=2025-08-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1792473698640, onlineDateStr=2026-10-20, pubDate=1761840000000, pubDateStr=2025-10-31, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792473698640, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792473698640, creator=13701087609, updateTime=1792473698640, updator=13701087609, issue=Issue{id=1319293461287780384, tenantId=1146029695717560320, journalId=1316781260334530699, year='2025', volume='53', issue='10', pageStart='1', pageEnd='118', issueExtLink='null', onlineDate='null', pubDate='1761840000000', pubDateStr='2025-10-31', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792473672458, creator='13701087609', updateTime=1792473672458, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=73, endPage=80, ext={EN=ArticleExt(id=1319293572885623339, articleId=1319293571107238440, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Separation performance study of oil-gas separator in aero‑engine lubrication and sealing system, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To address the effective degassing problem of oil-air mixtures in aero‑engine lubrication systems，a dynamic pressure oil-gas separator with a square inlet and simple compact structure is proposed.A combination of simulation and experimental methods was used to analyze its separation performance，and the control variable method was applied to investigate the influence laws of flow velocity，oil volume fraction，and oil droplet size on separation efficiency.The results show that the separation efficiency of the oil-gas separator is highest under high flow velocity and low oil volume fraction conditions；flow velocity has a significant impact on separation performance，achieving a maximum air separation efficiency ηd of 88.8% at 35 m/s；oil volume fraction also notably affects separation performance，reaching a maximum oil separation efficiency ηc of 93.5% at an oil volume fraction of 5% and droplet size of 5 μm.For large droplets with sizes of 15 μm and above，the separation efficiency ηk of this dynamic pressure oil-gas separator approaches 100%.This study can provide references for the development of oil-gas separators with high separation efficiency and low flow resistance.

, authors=Kening LI1, Xingyun JIA1, Deming XIONG2, Dali DAI3, Huichuan CHENG4, Zhihong ZHANG4, authorsList=Kening LI, Xingyun JIA, Deming XIONG, Dali DAI, Huichuan CHENG, Zhihong ZHANG, authorCompany=null, correspAuthors=Xingyun JIA, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1319293578090754631, articleId=1319293571107238440, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=航空发动机润滑密封系统油气分离器分离性能研究, columnId=1317484287230853622, journalTitle=流体机械, columnName=设计计算, runingTitle=null, highlight=null, articleAbstract=

针对航空发动机滑油系统中滑油-空气混合物的有效除气问题，提出一种方形进气口且结构简单紧凑的动压式油气分离器。采用模拟与试验相结合的方法分析其分离效果，并运用控制变量法探讨流速、滑油体积分数及油滴粒径对分离效率的影响规律。结果表明：高流速、低滑油体积分数条件下，油气分离器的分离效率最高；流速对分离性能的影响显著，当流速为35 m/s时，空气分离效率ηd最高可达88.8%；滑油体积分数对分离性能的影响亦较为明显，当滑油体积分数为5%、粒径为5 μm时，滑油分离效率ηc最高可达93.5%。对于粒径为15 μm及以上的大油滴，本结构动压式油气分离器的分离效率ηk接近100%。本研究可为高分离效率、低流阻油气分离器的研发提供参考。

, authors=李柯宁1, 贾兴运1, 熊德明2, 戴大利3, 程会川4, 张志红4, authorsList=李柯宁, 贾兴运, 熊德明, 戴大利, 程会川, 张志红, authorCompany=null, correspAuthors=贾兴运, authorNote=

李柯宁（2000），男，硕士研究生，研究方向为动设备密封技术，E-mail：。

, correspAuthorsNote=
贾兴运（1992），男，博士，副教授，主要从事动设备密封技术研究，通信地址：北京市朝阳区北三环东路15号北京化工大学，E-mail：。
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李柯宁（2000），男，硕士研究生，研究方向为动设备密封技术，E-mail：。

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李柯宁（2000），男，硕士研究生，研究方向为动设备密封技术，E-mail：。

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ArticleFig(id=1319293586768769688, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293571107238440, language=CN, label=图13, caption=油滴粒径对分离效率的影响, figureFileSmall=FboGLmMGlC2qpSU21QPGzw==, figureFileBig=vEpH0cmvSNpFmpcH07gWEg==, tableContent=null), ArticleFig(id=1319293586844267161, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293571107238440, language=EN, label=Tab.1, caption=

Physical properties of lubricating oil and air

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项目4050润滑油空气
密度/（kg·m-3）972.21.29
动力黏度/（Pa·s）5×10-31.79×10-5
比热容/（J·kg-1·℃-1）2 200—
), ArticleFig(id=1319293586928153242, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293571107238440, language=CN, label=表1, caption=

滑油及空气物性参数

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项目4050润滑油空气
密度/（kg·m-3）972.21.29
动力黏度/（Pa·s）5×10-31.79×10-5
比热容/（J·kg-1·℃-1）2 200—
), ArticleFig(id=1319293587003650715, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293571107238440, language=EN, label=Tab.2, caption=

Boundary condition operating conditions

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工况气体流速/（m·s-1）滑油流速/（m·s-1）入口滑油体积分数/%
115150.15
220200.15
325250.15
430300.15
535350.15
615150.05
715150.075
815150.1
915150.125
1015150.15
1115150.175
1215150.2
), ArticleFig(id=1319293587100119708, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293571107238440, language=CN, label=表2, caption=

边界条件工况

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工况气体流速/（m·s-1）滑油流速/（m·s-1）入口滑油体积分数/%
115150.15
220200.15
325250.15
430300.15
535350.15
615150.05
715150.075
815150.1
915150.125
1015150.15
1115150.175
1215150.2
), ArticleFig(id=1319293587171422877, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293571107238440, language=EN, label=Tab.3, caption=

Comparison between experimental and simulated values of separation efficiency under room temperature conditions

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入口滑油体积分数/%ηc试验值/%ηc仿真值/%
592.3593.5
1088.7293.0
1587.9592.4
), ArticleFig(id=1319293587259503262, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293571107238440, language=CN, label=表3, caption=

室温条件下分离效率试验值与仿真值对比

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入口滑油体积分数/%ηc试验值/%ηc仿真值/%
592.3593.5
1088.7293.0
1587.9592.4
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航空发动机润滑密封系统油气分离器分离性能研究
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李柯宁 1 , 贾兴运 1 , 熊德明 2 , 戴大利 3 , 程会川 4 , 张志红 4
流体机械 | 设计计算 2025,53(10): 73-80
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流体机械 |设计计算 2025 , 53 (10) : 73 -80
航空发动机润滑密封系统油气分离器分离性能研究
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李柯宁1 , 贾兴运1 , 熊德明2, 戴大利3, 程会川4, 张志红4
作者信息
  • 1北京化工大学 化工安全教育部工程研究中心，北京 100029
  • 2重庆德马高速装备工程研究院有限公司，重庆 402284
  • 3重庆德马磁悬浮技术有限公司，重庆 402284
  • 4中国航空发动机研究院，北京 101304
通讯作者:
贾兴运（1992），男，博士，副教授，主要从事动设备密封技术研究，通信地址：北京市朝阳区北三环东路15号北京化工大学，E-mail：。
作者简介:

李柯宁（2000），男，硕士研究生，研究方向为动设备密封技术，E-mail：。

Separation performance study of oil-gas separator in aero‑engine lubrication and sealing system
Kening LI1 , Xingyun JIA1 , Deming XIONG2, Dali DAI3, Huichuan CHENG4, Zhihong ZHANG4
Affiliations
  • 1Ministry of Chemical Safety Education Engineering Research Centre，Beijing University of Chemical Technology，Beijing 100029，China
  • 2Chongqing Dema High Speed Equipment Engineering Research Institute Co.，Ltd.，Chongqing 402284，China
  • 3Chongqing Dema Magnetic Levitation Technology Co.，Ltd.，Chongqing 402284，China
  • 4China Aero Engine Research Institute，Beijing 101304，China
出版时间: 2025-10-31 doi: 10.3969/j.issn.1005-0329.2025.10.009
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摘要
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针对航空发动机滑油系统中滑油-空气混合物的有效除气问题，提出一种方形进气口且结构简单紧凑的动压式油气分离器。采用模拟与试验相结合的方法分析其分离效果，并运用控制变量法探讨流速、滑油体积分数及油滴粒径对分离效率的影响规律。结果表明：高流速、低滑油体积分数条件下，油气分离器的分离效率最高；流速对分离性能的影响显著，当流速为35 m/s时，空气分离效率ηd最高可达88.8%；滑油体积分数对分离性能的影响亦较为明显，当滑油体积分数为5%、粒径为5 μm时，滑油分离效率ηc最高可达93.5%。对于粒径为15 μm及以上的大油滴，本结构动压式油气分离器的分离效率ηk接近100%。本研究可为高分离效率、低流阻油气分离器的研发提供参考。

润滑密封系统  /  油气分离器  /  分离效率  /  数值模拟

To address the effective degassing problem of oil-air mixtures in aero‑engine lubrication systems，a dynamic pressure oil-gas separator with a square inlet and simple compact structure is proposed.A combination of simulation and experimental methods was used to analyze its separation performance，and the control variable method was applied to investigate the influence laws of flow velocity，oil volume fraction，and oil droplet size on separation efficiency.The results show that the separation efficiency of the oil-gas separator is highest under high flow velocity and low oil volume fraction conditions；flow velocity has a significant impact on separation performance，achieving a maximum air separation efficiency ηd of 88.8% at 35 m/s；oil volume fraction also notably affects separation performance，reaching a maximum oil separation efficiency ηc of 93.5% at an oil volume fraction of 5% and droplet size of 5 μm.For large droplets with sizes of 15 μm and above，the separation efficiency ηk of this dynamic pressure oil-gas separator approaches 100%.This study can provide references for the development of oil-gas separators with high separation efficiency and low flow resistance.

lubrication and sealing system  /  oil‑gas separator  /  separation efficiency  /  numerical simulation
李柯宁, 贾兴运, 熊德明, 戴大利, 程会川, 张志红. 航空发动机润滑密封系统油气分离器分离性能研究. 流体机械, 2025 , 53 (10) : 73 -80 . DOI: 10.3969/j.issn.1005-0329.2025.10.009
Kening LI, Xingyun JIA, Deming XIONG, Dali DAI, Huichuan CHENG, Zhihong ZHANG. Separation performance study of oil-gas separator in aero‑engine lubrication and sealing system[J]. Fluid Machinery, 2025 , 53 (10) : 73 -80 . DOI: 10.3969/j.issn.1005-0329.2025.10.009
正文
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0　引言
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航空发动机正常运行时，大量滑油被输送至发动机各转动部件的轴承及齿轮箱中进行润滑，以减少机械结合面的摩擦并带走热量。由于滑油系统中含有一定量的空气，在发动机运行过程中，系统中的滑油会与空气持续混合，形成乳化液。这种滑油混合物中的气泡会增大管路阻力，降低滑油的比热容和热传导系数，不仅会削弱滑油散热器的换热性能，还会恶化摩擦副的冷却与润滑条件。因此，系统中必须采取有效措施对滑油-空气混合物进行除气［1］。目前，航空发动机润滑密封系统采用的油气分离装置主要有动压式、离心式及平板式［2］。其中，动压式油气分离器因其结构简单、空间紧凑、效率较高等优点，在航空发动机中得到了广泛应用。
国内对油气分离器的研究相对较少，相关理论基础也较为薄弱。国外研究人员在此方面开展了较多研究，但主要集中在生物燃料和石油化工等领域，在航空领域的应用设计较少。已有的分离器试验主要包括：采用RANS模型研究气液分离器的性能，并对导流管中的湍流状态进行模拟［3］；比较不同湍流模型下的分离性能［4-5］；结合数值模拟与试验进行流动分析［6-8］。通过这些研究，开发出了多种结构与尺寸类型的旋风分离器。研究人员还开展了动压式油水两相流分离系统的研究［9-11］，证实了压力、入口速度等因素对分离性能的影响，并提出了圆柱段尺寸的计算方法。文献［12-13］对分离器内部流动进行了深入研究，发现不同入口形状对分离效率有不同影响，最终证明方形入口的分离性能优于其他类型。国内研究人员通过测量输入和输出的质量变化计算分离器的分离效率，进一步验证了升气管和圆柱体部分对分离效率的影响，发现当切向进口速度较高时，圆柱体分离器具有较好的分离能力［14-17］。
当前研究主要集中在石油化工领域的动压式油水分离器及气液分离器的数值仿真与结构设计，缺乏面向航空发动机润滑密封系统工况的动压式油气分离器的研究，同时也缺少对分离效率计算方法的明确定义。本文针对方形出口油气分离器的分离效率进行数值仿真计算，并运用控制变量法探究流速、滑油体积分数及油滴粒径对分离效率的影响规律。
1　方进气口油气分离器数值计算方法与计算模型
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1.1　模型建立
方形进气口油气分离器的物理模型如图1所示，其主要由升气管、筒体、锥体及出口等部分组成。图2示出方形进气口油气分离器的流体域，油气混合物由进口快速进入后，在筒体内螺旋向下运动。由于速度较高，离心力作用使得滑油紧贴筒体内壁面螺旋向下运动，完成初步分离。液体运动至锥体后，因截面积减小导致压力增大，从而使锥体内滑油体积分数升高，大部分滑油和部分气体从滑油出口流出，剩余气体则携带少量滑油从气体出口流出。
在距离气体出口垂直高度40 mm和130 mm处，分别建立截面A和截面B，绘制压力与体积分数云图，进行对比验证，以揭示内部气液两相流动规律。
1.2　网格划分
使用Fluent Meshing对流域模型进行网格划分，以研究气液两相流动情况。由于四面体网格在处理边界条件和约束方面效果良好，因此采用四面体网格进行网格划分。经过网格无关性验证，确定网格数量为380 000，满足计算精度要求。
1.3　边界条件及求解设置
仿真中油气分离的气体为标准空气，滑油及空气的物性参数见表1。采用4050润滑油，其在试验工况下的动力黏度约为5×10-3 Pa·s。入口速度根据试验工况设定，分别输入滑油速度、空气速度和滑油体积分数等边界条件进行计算，具体数值见表2。
工况1~5保持滑油体积分数为0.15不变，探究进口混合物流速分别为15，20，25，30，35 m/s对分离效率的影响；工况6~12保持进口混合物流速为15 m/s不变，探究入口滑油体积分数分别为5%，7.5%，10%，12.5%，15%，17.5%及20%对分离效率的影响规律。同时，考虑到油滴粒径是影响分离效率的关键参数，在进口速度及压力不变的条件下，探究了油滴粒径分别为5，10，15，20 μm对本结构动压式油气分离器分离效率的影响。
为模拟油气分离过程中的流体动态，选择欧拉多相流模型进行研究。该模型广泛应用于气泡流、液滴流等各种流动类型，适用于处理复杂的多相流问题。特别是在油气分离器中，流体主要作螺旋运动，这就要求所选用的黏度模型必须能够准确模拟旋流等非均匀流动现象。虽然传统的k-ε模型在处理基础油滴问题上表现良好，但其在模拟旋流问题时适用性不佳。因此，采用改进的RNG k-ε模型，该模型能够更精确地模拟旋流场，从而提高油气分离模拟的精度和可靠性。这种改进模型在计算过程中考虑了流体动力学的细微差异，使得仿真结果更接近实际操作条件，对油气分离器的设计与优化具有重要意义。
1.4　分离效率定义
提出3种仿真分析油气分离器分离效果的方法，具体如下。
（1）通过单位时间内从滑油出口分离出的滑油质量（质量流量）与进入分离器的总滑油质量（质量流量）的比值来表示滑油分离效率ηc，计算式如下：
ηc=Qout2Qin×100%
式中，Qin为油气混合物进口输入的滑油质量流量，kg/s；Qout2为滑油出口输出的滑油质量流量，kg/s。
（2）通过单位时间内从气体出口分离出的空气质量（质量流量）与进入分离器的总空气质量（质量流量）的比值来表示空气分离效率ηd，计算式如下：
ηd=qout1qin×100%
式中，qin为油气混合物进口输入的空气质量流量，kg/s；qout1为气体出口输出的空气质量流量，kg/s。
（3）通过分离器捕捉油滴颗粒的性能来反映分离效率，分离器壁面及滑油出口处捕捉的油滴数量为ntrap，油气混合物进口喷射入口总量为ntracked，分离效率ηk表达式如下：
ηk=ntrapntracked×100%
1.5　压降损失系数定义
通过分离前压强和滑油出口输出（即分离后）压强的差值，与分离前压强的比值来表示压降效果，计算式如下：
αp=(pin-pout)pin×100%
式中，pin为进口压强值，Pa；pout为气体出口处压强值，Pa。
2　试验装置及试验结果分析
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2.1　试验装置
航空发动机动压式油气分离器试验装置如图3所示，该试验装置由油气分离器区域及装置上下游组成。
试验装置的PID流程图如图4所示。试验介质的输送基本路径中，来自进油口和进气口的介质首先进行油气渗滤处理，油气混合物经管道输送至油气分离器。混合物在油气分离器中借助压力作用实现一定程度的油气分离。进口端设有混合物进口压力、温度测点；模拟油箱区域设有模拟油箱压力、温度测点；排气端设有压力、流量和温度测点；排放端设有出口温度、称重传感器和滑油液位测点。上游采用喷枪雾化混合方式，将滑油路与气路两路通过高温喷枪混合后喷出。滑油与空气在雾化装置内部分混合，喷枪直接连接管道，油气混合物经管道输送至油气分离段进行后续流动与试验测试。喷枪材料选用310S不锈钢，具有耐高温、防腐蚀特性；试验用油选择航空润滑油4050。此外，在滑油和压缩空气的进口管路上设置了流量、温度及压强等物理量采集点，便于进行试验数据采集。
分离器区域设计了一种可视化模拟油箱，可实时观测分离器的工作状态。模拟油箱上侧连接有风机，可使模拟油箱内形成负压状态，空气从上端排出。模拟油箱下端设计有称重传感器和液位激光传感器，分别用于测试试验油箱内的油量和液位高度。
2.2　试验结果分析及数值结果验证
对方形进气口动压式油气分离器进行分离效率测试试验，预定工况为在室温条件下，体积流量为139.8 L/min，滑油供油温度为30 ℃。表3列出室温条件下分离效率试验值与仿真值对比。在入口滑油体积分数为15%的工况下，滑油分离效率ηc的试验值为87.95%，数值模拟结果为92.4%，数值模拟结果与试验结果的最大误差不超过5%，证明了数值模型的准确性。
3　计算结果与分析
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3.1　流速对分离性能与压降损失系数的影响
流速是影响压降的重要因素。对方形进气口油气分离器进行了进口混合物流速分别为15，20，25，30，35 m/s的测试，入口滑油体积分数保持15%不变。
分别截取XZ平面上的A截面和B截面，绘制压力和体积分数云图，如图5~10所示。从图5中的滑油体积分数云图可以看出，随着流速增大，筒体部分的滑油体积分数几乎不变，而下锥体部分的滑油体积分数快速上升。当流速大于35 m/s时，出口滑油体积分数超过50%。从图6可以看出，筒体部分滑油体积分数几乎不变，由图7可见，当流速在25 m/s以下时，高体积分数区域较为明显。从图8可以看出，随着流速增加，圆筒区域也逐渐变为高压区。对比图9和图10发现，壁面的高体积分数区域与低压力区域几乎重合，表明滑油较多的区域其压力和流速相对较小。
如图11所示，保持入口滑油体积分数不变，随着离散相油滴粒径的增大，ηc逐渐降低。随着进口流速增大，ηc趋于稳定。ηd反应的是进出口空气质量流量的比值。ηd随流速的增大而明显增大，表明分离效率提高。从各流速下XZ截面的压力云图可以看出，出气口压力随流速增大而增大，圆筒区压力较高有助于气体从升气管中排出。αp随流速的增大而缓慢增大，表明流速对αp的影响较小。
3.2　滑油体积分数对分离性能与压降损失系数的影响
如图12所示，ηc随滑油体积分数的增大而减小，这与实际试验结论一致，验证了数值模型的准确性。在进口混合物速度不变的条件下，随着滑油体积分数或供油量的增大，分离器处理负荷增加，导致分离性能下降。此外，ηd随滑油体积分数的增大而缓慢增大，αp随滑油体积分数的增大几乎保持不变。由于ηc定义为单位时间内从滑油出口分离出的滑油质量（质量流量）与进入分离器的总滑油质量（质量流量）的比值，因此，ηc能够较好地反映滑油体积分数对分离性能的影响规律。
3.3　油滴粒径大小对分离效率的影响
设置油滴从入口垂直射入，速度为15 m/s，离散相为4050润滑油，连续相为理想气体。研究油滴粒径分别为5，10，15，20 μm时对动压式油气分离器分离效率ηk的影响，结果如图13所示，可以看出，分离效率ηk随油滴粒径的增大而上升。对于15 μm及以上的大粒径油滴，动压式油气分离器的分离效率ηk接近100%。
4　结论
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（1）保持油气混合物中滑油的体积分数为15%不变，随着离散相油滴粒径的增大，ηc呈逐渐降低的趋势。ηd随流速的增大而明显增大，证明圆筒区压力较高有助于气体从升气管中排出。αp随流速的增大而缓慢增大，流速对αp的影响较小。ηd能够较好地反映流速对分离器分离性能的影响。
（2）保持油气混合物流速为15 m/s不变，增大油气混合物中滑油的体积分数，ηc随滑油体积分数的增大而减小，这与实际试验结论一致。而αp随滑油体积分数的增大而缓慢增大，其值总体稳定在97.7%~99.7%之间。随着滑油体积分数增加，αp稳定在98.9%~98.8%范围内，流阻特性较为稳定。ηc能够较好地反映滑油体积分数对分离性能的影响规律。
（3）油滴从入口以15 m/s的速度射入，速度大小恒定，研究油滴粒径在5~20 μm范围内对动压式油气分离器分离效率ηk的影响。结果表明，分离效率ηk随油滴粒径的增大而上升，对于15 μm及以上的大粒径油滴，本结构动压式油气分离器的分离效率ηk接近100%。

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2025年第53卷第10期
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doi: 10.3969/j.issn.1005-0329.2025.10.009
  • 接收时间：2025-04-30
  • 首发时间：2026-10-20
  • 出版时间：2025-10-31
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  • 收稿日期：2025-04-30
  • 修回日期：2025-08-25
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    1北京化工大学 化工安全教育部工程研究中心，北京 100029
    2重庆德马高速装备工程研究院有限公司，重庆 402284
    3重庆德马磁悬浮技术有限公司，重庆 402284
    4中国航空发动机研究院，北京 101304

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贾兴运（1992），男，博士，副教授，主要从事动设备密封技术研究，通信地址：北京市朝阳区北三环东路15号北京化工大学，E-mail：。
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