Numerical study on natural convection in a ship cargo tank

K. Sahin; S. Ergin

Numerical study on natural convection in a ship cargo tank

K. Sahin, S. Ergin

Gemi İnş. ve Gemi Mak. Müh. Böl.

Istanbul Technical University

Araştırma sonucu: ???type-name??? › Konferans katkısı › bilirkişi

Özet

A numerical study is carried out to investigate the natural convection in a ship cargo tank that is filled with high viscosity fluid such as heavy fuel oil. The effects of Rayleigh numbers and turbulence on the flow field and average Nusselt numbers are studied. Governing equations are solved by using the finite volume method which is incorporated in Ansys-Fluent computational fluid dynamics program. The average Nusselt numbers and the distributions of the local Nusselt number on the isothermal walls are obtained. The scaling laws between the Nusselt number and Rayleigh number are presented for 10³ ≤ Ra ≤ 10⁹. The turbulence effects on the Nusselt number is found to be high when the Ra number is higher than 10⁸. It has been observed that the local Nusselt number values along the hot wall decrease quickly. Furthermore, the effect of Rayleigh number on heat transfer is found to be significant.

Orijinal dil	İngilizce
Ana bilgisayar yayını başlığı	Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019
Editörler	Petar Georgiev, C. Guedes Soares
Yayınlayan	CRC Press/Balkema
Sayfalar	512-519
Sayfa sayısı	8
ISBN (Basılı)	9780367409517
Yayın durumu	Yayınlandı - 2020
Etkinlik	18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019 - Varna, Bulgaria Süre: 9 Eyl 2019 → 11 Eyl 2019

Yayın serisi

Adı	Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???	18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019
Ülke/Bölge	Bulgaria
Şehir	Varna
Periyot	9/09/19 → 11/09/19

Bibliyografik not

Publisher Copyright:
© 2020 Taylor & Francis Group, London.

Finansman

This study was supported by the Istanbul Technical University Scientific Research Projects Coordination Unit, BAP (Project Number: 40960) This study was supported by the Istanbul Technical University Scientific Research Projects Coordination Unit, BAP (Project Number: 40960).

Finansörler	Finansör numarası
Istanbul Technical University Scientific Research Projects Coordination Unit
British Association for Psychopharmacology
Firat University Scientific Research Projects Management Unit
Bilimsel Araştırma Projeleri Birimi, İstanbul Teknik Üniversitesi	40960

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

Sahin, K., & Ergin, S. (2020). Numerical study on natural convection in a ship cargo tank. In P. Georgiev, & C. G. Soares (Eds.), Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019 (pp. 512-519). (Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019). CRC Press/Balkema.

Sahin, K. ; Ergin, S. / Numerical study on natural convection in a ship cargo tank. Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019. editör / Petar Georgiev ; C. Guedes Soares. CRC Press/Balkema, 2020. pp. 512-519 (Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019).

@inproceedings{9ee917da6f7b4012b81ae1d99eb19104,

title = "Numerical study on natural convection in a ship cargo tank",

abstract = "A numerical study is carried out to investigate the natural convection in a ship cargo tank that is filled with high viscosity fluid such as heavy fuel oil. The effects of Rayleigh numbers and turbulence on the flow field and average Nusselt numbers are studied. Governing equations are solved by using the finite volume method which is incorporated in Ansys-Fluent computational fluid dynamics program. The average Nusselt numbers and the distributions of the local Nusselt number on the isothermal walls are obtained. The scaling laws between the Nusselt number and Rayleigh number are presented for 103 ≤ Ra ≤ 109. The turbulence effects on the Nusselt number is found to be high when the Ra number is higher than 108. It has been observed that the local Nusselt number values along the hot wall decrease quickly. Furthermore, the effect of Rayleigh number on heat transfer is found to be significant.",

author = "K. Sahin and S. Ergin",

note = "Publisher Copyright: {\textcopyright} 2020 Taylor & Francis Group, London.; 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019 ; Conference date: 09-09-2019 Through 11-09-2019",

year = "2020",

language = "English",

isbn = "9780367409517",

series = "Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019",

publisher = "CRC Press/Balkema",

pages = "512--519",

editor = "Petar Georgiev and Soares, {C. Guedes}",

booktitle = "Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019",

}

Sahin, K & Ergin, S 2020, Numerical study on natural convection in a ship cargo tank. in P Georgiev & CG Soares (eds), Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019. Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019, CRC Press/Balkema, pp. 512-519, 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019, Varna, Bulgaria, 9/09/19.

Numerical study on natural convection in a ship cargo tank. / Sahin, K.; Ergin, S.
Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019. ed. / Petar Georgiev; C. Guedes Soares. CRC Press/Balkema, 2020. p. 512-519 (Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019).

Araştırma sonucu: ???type-name??? › Konferans katkısı › bilirkişi

TY - GEN

T1 - Numerical study on natural convection in a ship cargo tank

AU - Sahin, K.

AU - Ergin, S.

PY - 2020

Y1 - 2020

N2 - A numerical study is carried out to investigate the natural convection in a ship cargo tank that is filled with high viscosity fluid such as heavy fuel oil. The effects of Rayleigh numbers and turbulence on the flow field and average Nusselt numbers are studied. Governing equations are solved by using the finite volume method which is incorporated in Ansys-Fluent computational fluid dynamics program. The average Nusselt numbers and the distributions of the local Nusselt number on the isothermal walls are obtained. The scaling laws between the Nusselt number and Rayleigh number are presented for 103 ≤ Ra ≤ 109. The turbulence effects on the Nusselt number is found to be high when the Ra number is higher than 108. It has been observed that the local Nusselt number values along the hot wall decrease quickly. Furthermore, the effect of Rayleigh number on heat transfer is found to be significant.

AB - A numerical study is carried out to investigate the natural convection in a ship cargo tank that is filled with high viscosity fluid such as heavy fuel oil. The effects of Rayleigh numbers and turbulence on the flow field and average Nusselt numbers are studied. Governing equations are solved by using the finite volume method which is incorporated in Ansys-Fluent computational fluid dynamics program. The average Nusselt numbers and the distributions of the local Nusselt number on the isothermal walls are obtained. The scaling laws between the Nusselt number and Rayleigh number are presented for 103 ≤ Ra ≤ 109. The turbulence effects on the Nusselt number is found to be high when the Ra number is higher than 108. It has been observed that the local Nusselt number values along the hot wall decrease quickly. Furthermore, the effect of Rayleigh number on heat transfer is found to be significant.

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M3 - Conference contribution

AN - SCOPUS:85079247647

SN - 9780367409517

T3 - Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019

SP - 512

EP - 519

BT - Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019

A2 - Georgiev, Petar

A2 - Soares, C. Guedes

PB - CRC Press/Balkema

T2 - 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019

Y2 - 9 September 2019 through 11 September 2019

ER -

Sahin K, Ergin S. Numerical study on natural convection in a ship cargo tank. In Georgiev P, Soares CG, editörler, Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019. CRC Press/Balkema. 2020. p. 512-519. (Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019).

Numerical study on natural convection in a ship cargo tank

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