EFFECTS OF RAREFIED GAS FLOW ON VELOCITY BOUNDARY AND TEMPERATURE CHARACTERISTICS OF AEROSTATIC GUIDE WAY
When the thickness of aerostatic guide way gas film is in the scale of micron meters,the air flow inside is in the slip regime according to Kn. In this case,pressure distribution and bearing characteristics of the gas film will be influenced by rarefied effect. The most outstanding characteristics i...
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Editorial Office of Journal of Mechanical Strength
2018-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.03.016 |
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| author | LONG Wei GONG Ling YANG ShaoHua |
| author_facet | LONG Wei GONG Ling YANG ShaoHua |
| author_sort | LONG Wei |
| collection | DOAJ |
| description | When the thickness of aerostatic guide way gas film is in the scale of micron meters,the air flow inside is in the slip regime according to Kn. In this case,pressure distribution and bearing characteristics of the gas film will be influenced by rarefied effect. The most outstanding characteristics is shown as velocity slip and temperature jump. Based on LBM,velocity and temperature distribution in the radial direction can be achieved. Based on the study of a mathematical model and simulation analysis,with the increase of Kn,the degree of velocity slip increases. The result of velocity slip benefit cooling effectiveness,but the temperature jump is negative. This is because temperature jump acts as an additional thermal resistance between rail and air film,which is not beneficial to radiating of aerostatic guide way. |
| format | Article |
| id | doaj-art-449119443cf745cc82f8d57c4d6e93b6 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2018-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-449119443cf745cc82f8d57c4d6e93b62025-01-15T02:32:01ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692018-01-014060260630601731EFFECTS OF RAREFIED GAS FLOW ON VELOCITY BOUNDARY AND TEMPERATURE CHARACTERISTICS OF AEROSTATIC GUIDE WAYLONG WeiGONG LingYANG ShaoHuaWhen the thickness of aerostatic guide way gas film is in the scale of micron meters,the air flow inside is in the slip regime according to Kn. In this case,pressure distribution and bearing characteristics of the gas film will be influenced by rarefied effect. The most outstanding characteristics is shown as velocity slip and temperature jump. Based on LBM,velocity and temperature distribution in the radial direction can be achieved. Based on the study of a mathematical model and simulation analysis,with the increase of Kn,the degree of velocity slip increases. The result of velocity slip benefit cooling effectiveness,but the temperature jump is negative. This is because temperature jump acts as an additional thermal resistance between rail and air film,which is not beneficial to radiating of aerostatic guide way.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.03.016Aerostatic guide wayRarefied effectLattice boltzmannVelocity slip |
| spellingShingle | LONG Wei GONG Ling YANG ShaoHua EFFECTS OF RAREFIED GAS FLOW ON VELOCITY BOUNDARY AND TEMPERATURE CHARACTERISTICS OF AEROSTATIC GUIDE WAY Jixie qiangdu Aerostatic guide way Rarefied effect Lattice boltzmann Velocity slip |
| title | EFFECTS OF RAREFIED GAS FLOW ON VELOCITY BOUNDARY AND TEMPERATURE CHARACTERISTICS OF AEROSTATIC GUIDE WAY |
| title_full | EFFECTS OF RAREFIED GAS FLOW ON VELOCITY BOUNDARY AND TEMPERATURE CHARACTERISTICS OF AEROSTATIC GUIDE WAY |
| title_fullStr | EFFECTS OF RAREFIED GAS FLOW ON VELOCITY BOUNDARY AND TEMPERATURE CHARACTERISTICS OF AEROSTATIC GUIDE WAY |
| title_full_unstemmed | EFFECTS OF RAREFIED GAS FLOW ON VELOCITY BOUNDARY AND TEMPERATURE CHARACTERISTICS OF AEROSTATIC GUIDE WAY |
| title_short | EFFECTS OF RAREFIED GAS FLOW ON VELOCITY BOUNDARY AND TEMPERATURE CHARACTERISTICS OF AEROSTATIC GUIDE WAY |
| title_sort | effects of rarefied gas flow on velocity boundary and temperature characteristics of aerostatic guide way |
| topic | Aerostatic guide way Rarefied effect Lattice boltzmann Velocity slip |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.03.016 |
| work_keys_str_mv | AT longwei effectsofrarefiedgasflowonvelocityboundaryandtemperaturecharacteristicsofaerostaticguideway AT gongling effectsofrarefiedgasflowonvelocityboundaryandtemperaturecharacteristicsofaerostaticguideway AT yangshaohua effectsofrarefiedgasflowonvelocityboundaryandtemperaturecharacteristicsofaerostaticguideway |