A Model Experimental Study on Water flows out from the Ballast Tank for Emergency Rising of Submarines
Accurate assessment models are crucial for ensuring the safe operation of submarines during emergency rising, highlighting the need for a precise mathematical model to optimize ballast tank operations. The emergency rising process involves the rapid release of high-pressure compressed air from the b...
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| Format: | Article |
| Language: | English |
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The Korean Society of Ocean Engineers
2024-12-01
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| Series: | 한국해양공학회지 |
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| Online Access: | https://doi.org/10.26748/KSOE.2024.084 |
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| author | Jae Sang Jung Sung wook Lee Ji Hwan Shin |
| author_facet | Jae Sang Jung Sung wook Lee Ji Hwan Shin |
| author_sort | Jae Sang Jung |
| collection | DOAJ |
| description | Accurate assessment models are crucial for ensuring the safe operation of submarines during emergency rising, highlighting the need for a precise mathematical model to optimize ballast tank operations. The emergency rising process involves the rapid release of high-pressure compressed air from the ballast tank, a complex sequence influenced by variations in depth and pressure. This study focuses on developing and validating a mathematical model to accurately simulate this operation. Building upon prior studies of the air-blowing process within the ballast tank was performed. An experimental setup was also established to measure discharge rates under varying depths and pressures, facilitating a comparative analysis of experimental and simulated data. The findings reveal that pressure loss is a critical factor influencing the discharge flow rate. Consequently, a new formula is proposed to dynamically adjust pressure loss based on changes in depth and pressure. This model significantly improves the accuracy of flow rate calculations across diverse operating conditions, surpassing earlier models that relied on fixed pressure loss coefficients. The proposed approach is expected to enhance predictions of submarine attitude changes during emergency rising maneuvers. |
| format | Article |
| id | doaj-art-9db245025eb6485ca2d75e63483b2763 |
| institution | OA Journals |
| issn | 2287-6715 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | The Korean Society of Ocean Engineers |
| record_format | Article |
| series | 한국해양공학회지 |
| spelling | doaj-art-9db245025eb6485ca2d75e63483b27632025-08-20T02:00:54ZengThe Korean Society of Ocean Engineers한국해양공학회지2287-67152024-12-0138637038310.26748/KSOE.2024.084A Model Experimental Study on Water flows out from the Ballast Tank for Emergency Rising of SubmarinesJae Sang Jung0https://orcid.org/0000-0001-7090-2382Sung wook Lee1https://orcid.org/0000-0001-6089-303XJi Hwan Shin2https://orcid.org/0009-0007-8663-3050Korea Research Institute of Ship & Ocean Engineering (KRISO)Korea Maritime & Ocean UniversityKorea Agency for Defense DevelopmentAccurate assessment models are crucial for ensuring the safe operation of submarines during emergency rising, highlighting the need for a precise mathematical model to optimize ballast tank operations. The emergency rising process involves the rapid release of high-pressure compressed air from the ballast tank, a complex sequence influenced by variations in depth and pressure. This study focuses on developing and validating a mathematical model to accurately simulate this operation. Building upon prior studies of the air-blowing process within the ballast tank was performed. An experimental setup was also established to measure discharge rates under varying depths and pressures, facilitating a comparative analysis of experimental and simulated data. The findings reveal that pressure loss is a critical factor influencing the discharge flow rate. Consequently, a new formula is proposed to dynamically adjust pressure loss based on changes in depth and pressure. This model significantly improves the accuracy of flow rate calculations across diverse operating conditions, surpassing earlier models that relied on fixed pressure loss coefficients. The proposed approach is expected to enhance predictions of submarine attitude changes during emergency rising maneuvers.https://doi.org/10.26748/KSOE.2024.084ballast tankssubmarineswater flow through flood portblowing operationmodel test |
| spellingShingle | Jae Sang Jung Sung wook Lee Ji Hwan Shin A Model Experimental Study on Water flows out from the Ballast Tank for Emergency Rising of Submarines 한국해양공학회지 ballast tanks submarines water flow through flood port blowing operation model test |
| title | A Model Experimental Study on Water flows out from the Ballast Tank for Emergency Rising of Submarines |
| title_full | A Model Experimental Study on Water flows out from the Ballast Tank for Emergency Rising of Submarines |
| title_fullStr | A Model Experimental Study on Water flows out from the Ballast Tank for Emergency Rising of Submarines |
| title_full_unstemmed | A Model Experimental Study on Water flows out from the Ballast Tank for Emergency Rising of Submarines |
| title_short | A Model Experimental Study on Water flows out from the Ballast Tank for Emergency Rising of Submarines |
| title_sort | model experimental study on water flows out from the ballast tank for emergency rising of submarines |
| topic | ballast tanks submarines water flow through flood port blowing operation model test |
| url | https://doi.org/10.26748/KSOE.2024.084 |
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