| Numerical calculation and industrial measurements of metal pad velocities in Hall-Heroult cells |
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| 引用本文： | 周萍,周乃君,梅炽,蔡祺风,姜昌伟,王志奇. Numerical calculation and industrial measurements of metal pad velocities in Hall-Heroult cells[J]. 中国有色金属学会会刊, 2003, 13(1) |
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| 作者姓名： | 周萍 周乃君 梅炽 蔡祺风 姜昌伟 王志奇 |
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| 作者单位： | School of Energy and Power Engineering，Central South University，Changsha 410083，China，School of Energy and Power Engineering，Central South University，Changsha 410083，China，School of Energy and Power Engineering，Central South University，Changsha 410083，China，School of Energy and Power Engineering，Central South University，Changsha 410083，China，School of Energy and Power Engineering，Central South University，Changsha 410083，China，School of Energy and Power Engineering，Central South University，Changsha 410083，China |
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| 基金项目： | Project (G19990 6 490 0 3 2)supportedbytheNationalKeyFundamentalResearchandDevelopmentProgramofChina |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＭａｇｎｅｔｏｈｙｄｒｏｄｙｎａｍｉｃｓ(ＭＨＤ )ｐｌａｙｓａｎｉｍｐｏｒｔａｎｔｒｏｌｅｉｎｃｅｌｌｐｅｒｆｏｒｍａｎｃｅ[1] .Ｉｎｒｅｃｅｎｔｙｅａｒｓ ,ｎｏｔｏｎｌｙｉｎｔｈｅｎｅｗｃｅｌｌｄｅｓｉｇｎｉｎｇｂｕｔａｌｓｏｉｎｉｎｃｒｅａｓｉｎｇａｍｐｅｒａｇｅｉｎｅｘｉｓｔｉｎｇｌｉｎｅｓ ,ｍｏｒｅａｔｔｅｎｔｉｏｎｓｈａｖｅｂｅｅｎｐａｉｄｏｎｔｈｅｓｔｕｄｙｏｆＭＨＤ[2 ] .Ｔｗｏａｐｐｒｏａｃｈｅｓｈａｖｅｂｅｅｎｕｓｅｄｆｏｒｄｅ ｔｅｒｍｉｎｉｎｇｔｈｅＭ…
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Numerical calculation and industrial measurements of metal pad velocities in Hall-Heroult cells |
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| ZHOU Ping,ZHOU Nai-jun,MEI Chi,CAI Qi-Feng,JIANG Chang-wei,WANG Zhi-qi. Numerical calculation and industrial measurements of metal pad velocities in Hall-Heroult cells[J]. Transactions of Nonferrous Metals Society of China, 2003, 13(1) |
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| Authors: | ZHOU Ping ZHOU Nai-jun MEI Chi CAI Qi-Feng JIANG Chang-wei WANG Zhi-qi |
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| Abstract: | The Navier-Stokes equation with the "k-ε" two-equation turbulence model was employed to describethree-dimension flow of melt in aluminum electrolysis cells. For a 160 kA cell with two current risers, the source, i.e. the electromagnetic force, in the momentum equations was solved based on the simulation results of magnetic andtemperature fields. Numerical simulation on the three-dimension steady-state flow of melt was carried out. The re-sults obtained about the velocities of molten metal on different planes, the metal/bath interface shape and the elec-tromagnetic force distribution, were analyzed. An iron rod dissolution technique, which is based on the rate of dis-solution of iron rods inserted into the melt, was used to measure the velocities of metal pad. The simulation andmeasurement show that there are two interaction vortexes in horizontal direction. The predictions are in well agree-ment with the measured results for flow pattern and velocities. It is worthwhile that in the three-dimension simula-tion, there is also a little change of metal velocities from level to level due to the difference of horizontal current oneach level. |
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| Keywords: | aluminum electrolysis cell turbulent flow numerical simulation iron rod dissolution technique |
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