| 2D-simulation of wet steam flow in a steam turbine with spontaneous condensation |
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| 作者姓名： | SUN Lan-xin ZHENG Qun LIU Shun-long |
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| 作者单位： | SUN Lan-xin，ZHENG Qun，and LIU Shun-long College of Power and Energy Engineering，Harbin Engineering University，Harbin 150001，China |
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| 基金项目： | The support of Program of Shanghai Pujiang Talent Plans (Grant No. 06PJ14057), National Natural Science Foundation of China (Grant No.10672101),National 863 Plan Project of Ministry of Science and Technology of China (GrantNo.2006AA09Z354 and 2006AA09A107 |
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| 摘 要： | Removal of condensates from wet steam flow in the last stages of steam turbines significantly promotes stage efficiency and prevents erosion of rotors. In this paper, homogeneous spontaneous condensation in transonic steam flow in the 2-D rotor-tip section of a stage turbine is investigated. Calculated results agree with experimental data reasonably well. On the basis of the above work, a 2-D numerical simulation of wet steam flow in adjacent root sections of a complex steam turbine stage was carried out. Computational results were analyzed and provide insights into effective removal of humidity.
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| 关 键 词： | 蒸汽轮机 湿蒸汽流体 均匀浓缩 船舶动力 |
| 文章编号： | 1671-9433（2007）02-0059-05 |
| 收稿时间： | 2 March 2006 |
| 修稿时间： | 2006-03-02 |
2D-simulation of wet steam flow in a steam turbine with spontaneous condensation |
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| Sun Lan-xin,Zheng Qun,Liu Shun-long.2D-simulation of wet steam flow in a steam turbine with spontaneous condensation[J].Journal of Marine Science and Application,2007,6(2):59-63. |
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| Authors: | Sun Lan-xin Zheng Qun Liu Shun-long |
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| Institution: | (1) College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, China |
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| Abstract: | Removal of condensates from wet steam flow in the last stages of steam turbines significantly promotes stage efficiency and prevents erosion of rotors. In this paper, homogeneous spontaneous condensation in transonic steam flow in the 2-D rotor-tip section of a stage turbine is investigated. Calculated results agree with experimental data reasonably well. On the basis of the above work, a 2-D numerical simulation of wet steam flow in adjacent root sections of a complex steam turbine stage was carried out. Computational results were analyzed and provide insights into effective removal of humidity. |
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| Keywords: | steam turbine wet steam flow homogenous condensation Eulerian-Eulerian multiphase model |
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