Secondary Cooling Analysis of AZ80Y Magnesium Alloy Slab during DC Casting by Modelling and Verification Based on Experiment
The secondary cooling of AZ80 during DC casting was investigated by measuring the temperature at a given position during steady state. The experiment was carried out under different parameters including the water flow rate density (<inline-formula><math xmlns="http://www.w3.org/1998/Ma...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Crystals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4352/12/11/1515 |
| _version_ | 1797468625655824384 |
|---|---|
| author | Jian Hou Qichi Le Xingrui Chen Wenyi Hu Fangkun Ning Ruizhen Guo Xiaoqiang Yu Li Fu |
| author_facet | Jian Hou Qichi Le Xingrui Chen Wenyi Hu Fangkun Ning Ruizhen Guo Xiaoqiang Yu Li Fu |
| author_sort | Jian Hou |
| collection | DOAJ |
| description | The secondary cooling of AZ80 during DC casting was investigated by measuring the temperature at a given position during steady state. The experiment was carried out under different parameters including the water flow rate density (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>Q</mi><mo>*</mo></msup></mrow></semantics></math></inline-formula>) and initial temperature (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>T</mi><mi>i</mi></msub></mrow></semantics></math></inline-formula>) of the impingement points. To theorize the heat transfer of the secondary cooling zone in practical DC casting, we designed a series of experimental equipment to simulate the secondary cooling with differing <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>T</mi><mi>i</mi></msub></mrow></semantics></math></inline-formula> (between 473 and 673 K) and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>Q</mi><mo>*</mo></msup></mrow></semantics></math></inline-formula> (between 20 and 100 L min<sup>−1</sup> m<sup>−1</sup>) based on the DC casting temperature-measurement experiment above. Detailed analysis was carried out of both the experimental results combined with <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>Q</mi><mo>*</mo></msup></mrow></semantics></math></inline-formula>. The empirical formulae of Rohsenow and Weckman were modified due to the need to divide the secondary cooling zone into an impingement zone and a free-falling zone. Finally, a verification of the model’s accuracy was conducted by comparing the results of the finite volume numerical simulation and the experiment, which revealed that the model exhibited extremely high accuracy. |
| first_indexed | 2024-03-09T19:10:05Z |
| format | Article |
| id | doaj.art-2809ef9d0f8647aeb7b8ccde7c434f31 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-09T19:10:05Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-2809ef9d0f8647aeb7b8ccde7c434f312023-11-24T04:14:22ZengMDPI AGCrystals2073-43522022-10-011211151510.3390/cryst12111515Secondary Cooling Analysis of AZ80Y Magnesium Alloy Slab during DC Casting by Modelling and Verification Based on ExperimentJian Hou0Qichi Le1Xingrui Chen2Wenyi Hu3Fangkun Ning4Ruizhen Guo5Xiaoqiang Yu6Li Fu7Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, ChinaSchool of Mechanical and Mining Engineering, The University of Queensland, Brisbane 4072, AustraliaSchool of Chemical and Materials Science, Longyan University, Longyan 364012, ChinaSchool of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, ChinaCollege of Mechanical Engineering, Shenyang University, Shenyang 110044, ChinaThe secondary cooling of AZ80 during DC casting was investigated by measuring the temperature at a given position during steady state. The experiment was carried out under different parameters including the water flow rate density (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>Q</mi><mo>*</mo></msup></mrow></semantics></math></inline-formula>) and initial temperature (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>T</mi><mi>i</mi></msub></mrow></semantics></math></inline-formula>) of the impingement points. To theorize the heat transfer of the secondary cooling zone in practical DC casting, we designed a series of experimental equipment to simulate the secondary cooling with differing <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>T</mi><mi>i</mi></msub></mrow></semantics></math></inline-formula> (between 473 and 673 K) and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>Q</mi><mo>*</mo></msup></mrow></semantics></math></inline-formula> (between 20 and 100 L min<sup>−1</sup> m<sup>−1</sup>) based on the DC casting temperature-measurement experiment above. Detailed analysis was carried out of both the experimental results combined with <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>Q</mi><mo>*</mo></msup></mrow></semantics></math></inline-formula>. The empirical formulae of Rohsenow and Weckman were modified due to the need to divide the secondary cooling zone into an impingement zone and a free-falling zone. Finally, a verification of the model’s accuracy was conducted by comparing the results of the finite volume numerical simulation and the experiment, which revealed that the model exhibited extremely high accuracy.https://www.mdpi.com/2073-4352/12/11/1515magnesium alloysDC castingsecondary coolingboiling processheat flux density |
| spellingShingle | Jian Hou Qichi Le Xingrui Chen Wenyi Hu Fangkun Ning Ruizhen Guo Xiaoqiang Yu Li Fu Secondary Cooling Analysis of AZ80Y Magnesium Alloy Slab during DC Casting by Modelling and Verification Based on Experiment Crystals magnesium alloys DC casting secondary cooling boiling process heat flux density |
| title | Secondary Cooling Analysis of AZ80Y Magnesium Alloy Slab during DC Casting by Modelling and Verification Based on Experiment |
| title_full | Secondary Cooling Analysis of AZ80Y Magnesium Alloy Slab during DC Casting by Modelling and Verification Based on Experiment |
| title_fullStr | Secondary Cooling Analysis of AZ80Y Magnesium Alloy Slab during DC Casting by Modelling and Verification Based on Experiment |
| title_full_unstemmed | Secondary Cooling Analysis of AZ80Y Magnesium Alloy Slab during DC Casting by Modelling and Verification Based on Experiment |
| title_short | Secondary Cooling Analysis of AZ80Y Magnesium Alloy Slab during DC Casting by Modelling and Verification Based on Experiment |
| title_sort | secondary cooling analysis of az80y magnesium alloy slab during dc casting by modelling and verification based on experiment |
| topic | magnesium alloys DC casting secondary cooling boiling process heat flux density |
| url | https://www.mdpi.com/2073-4352/12/11/1515 |
| work_keys_str_mv | AT jianhou secondarycoolinganalysisofaz80ymagnesiumalloyslabduringdccastingbymodellingandverificationbasedonexperiment AT qichile secondarycoolinganalysisofaz80ymagnesiumalloyslabduringdccastingbymodellingandverificationbasedonexperiment AT xingruichen secondarycoolinganalysisofaz80ymagnesiumalloyslabduringdccastingbymodellingandverificationbasedonexperiment AT wenyihu secondarycoolinganalysisofaz80ymagnesiumalloyslabduringdccastingbymodellingandverificationbasedonexperiment AT fangkunning secondarycoolinganalysisofaz80ymagnesiumalloyslabduringdccastingbymodellingandverificationbasedonexperiment AT ruizhenguo secondarycoolinganalysisofaz80ymagnesiumalloyslabduringdccastingbymodellingandverificationbasedonexperiment AT xiaoqiangyu secondarycoolinganalysisofaz80ymagnesiumalloyslabduringdccastingbymodellingandverificationbasedonexperiment AT lifu secondarycoolinganalysisofaz80ymagnesiumalloyslabduringdccastingbymodellingandverificationbasedonexperiment |