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Peer-reviewed Journal Articles, etc >
Application of Heat Transfer Coefficient Estimation Using Data Assimilation and a 1-D Solidification Model to 3-D Solidification Simulation
| Title: | Application of Heat Transfer Coefficient Estimation Using Data Assimilation and a 1-D Solidification Model to 3-D Solidification Simulation |
| Authors: | Oikawa, Toshihiko Browse this author | | Natsume, Yukinobu Browse this author | | Ohno, Munekazu Browse this author →KAKEN DB |
| Keywords: | data assimilation | | heat transfer coefficient | | solidification | | casting | | simulation |
| Issue Date: | 15-Aug-2022 |
| Publisher: | 一般社団法人 日本鉄鋼協会 |
| Journal Title: | ISIJ international |
| Volume: | 62 |
| Issue: | 8 |
| Start Page: | 1666 |
| End Page: | 1673 |
| Publisher DOI: | 10.2355/isijinternational.ISIJINT-2022-095 |
| Abstract: | Solidification simulations are effective in designing a casting process to improve the quality of steel slabs and ingots. In this study, a new method was developed to efficiently estimate multiple heat transfer coefficients to improve the accuracy of three-dimensional (3-D) solidification simulation for a casting process. The heat transfer coefficients for the two heat transfer directions-side and bottom-of a prismatic mold were independently estimated by data assimilation using one-dimensional solidification simulations near the boundaries. The optimum values of the heat transfer coefficients at the side and bottom boundaries were elucidated by comparing the 3-D solidification simulation and experimental cooling curves. The maximum and average errors between the cooling curves of the 3-D solidification simulation with the optimum values and those of the experiment were less than 1.8% and 0.2%, respectively. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/87111 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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