›› 2016, Vol. 36 ›› Issue (3): 70-76.doi: 10.16708/j.cnki.1000-758X.2016.0031

• 技术交流 • 上一篇    下一篇

考虑热物性变化的月壤温度数值模拟

 罗祖分1, 宋保银1,*, 曹西2   

  1. 1南京航空航天大学航空宇航学院,南京210016
    2信州大学工学部,长野380-8553
  • 收稿日期:2015-07-31 修回日期:2015-10-12 出版日期:2016-06-25 发布日期:2016-02-24
  • 作者简介:罗祖分(1990-),男,硕士研究生,15951086152@126.com *宋保银(1956-),男,教授,bysong@nuaa.edu.cn,主要研究方向为传热与传质、飞行器环境与生命保障
  • 基金资助:

    江苏高校优势学科建设工程资助项目

Numericalsimulationoflunarsoiltemperatureconsideringitsvariablethermalproperties

 LUO  Zu-Fen1, SONG  Bao-Yin1,*, , CAO  Xi2   

  1. 1CollegeofAerospaceEngineering,NanjingUniversityofAeronauticsandAstronautics,Nanjing210016,China
    2FacultyofEngineering,ShinshuUniversity,Nagano380-8553,Japan
  • Received:2015-07-31 Revised:2015-10-12 Online:2016-06-25 Published:2016-02-24

摘要: 探月设备的热分析设计依赖于真实有效的月面热环境信息。借助于ANSYS热分析模块,建立了月壤导热系数随密度和温度变化、热容随温度变化的变热物性月壤温度求解模型,分别计算了月面纬度为26°和赤道地区的月表温度,探讨了赤道地区浅层月壤的温度分布。其中,月表温度计算结果与实测数据良好的一致性表明计算模型和所用计算参数适用可靠;而通过修正月壤导热系数来提高计算结果与实测数据的吻合程度则部分展示了月壤温度计算理论;在探讨赤道地区浅层月壤的温度分布时,文章给出了不同时刻对应的月壤温度剖面和热流剖面,并适度分析了月壤内部热流和导热系数对月壤温度剖面的影响,这些为利用月壤的温度剖面规律进行探月设备的热控设计提供了理论支持。

关键词: 月壤温度, 变热物性, ANSYS, 内部热流, 热设计

Abstract: Thethermaldesignoflunarexplorationdevicesandinstrumentsdependsonrealinformationofthethermalenvironmentofthelunarsurface.UsingthethermalanalysismoduleinANSYS,andconsideringthatthethermalconductivityofthelunarsoilvarieswithbothdensityandtemperatureandthespecificheatisafunctionoftemperature,alunarsoiltemperaturesolvingmodelwasdeveloped.Andthelunarsurfacetemperaturesatthelatitudeof26°andtheequatorwerethencalculatedrespectively.Thetemperaturedistributionofsuperficiallayersattheequatorwasalsodiscussed.Thegoodagreementofthecomputedresultsandthemeasureddatainlunarsurfacetemperaturesrevealsthatthemodelandtheselectedparametersareapplicableandreliable,besides,thefurthermatchedpredictingresultsandmeasureddatawithasomewhatmodifiedlunarsoilconductivitypartlyshowthefunctionofthemodelincalculatingthelunarsoiltemperature.Todiscussthetemperaturedistributionofsuperficiallayersattheequator,thelunarsoiltemperatureandtheheatfluxprofilesatdifferenttimeswereplotted,andtheeffectsofthelunarinnerheatfluxandtheconductivityofthelunarsoilonthesoiltemperaturewerealsoanalyzed,whichmighttheoreticallysupportthethermaldesignsforlunarexplorationdevicesorinstruments.

Key words: lunarsoiltemperature, variablethermalproperties, ANSYS, innerheatflux, thermaldesign