CODE DEVELOPMENT FOR ESTIMATING THE COOLING EFFECT OF A STEEL PLATE USING SURFACE FILM MODEL

W. Lee; I.D. Suh; I. Lee; H. Kim; J. Lee; S.H. Rhee

doi:10.6112/kscfe.2025.30.2.121

All Issue

2025 Vol.30, Issue 2 Preview Page Next Page

Original Article

CODE DEVELOPMENT FOR ESTIMATING THE COOLING EFFECT OF A STEEL PLATE USING SURFACE FILM MODEL 표면 액막 모델을 이용한 강판 냉각 효과 추정을 위한 코드 개발

30 June 2025. pp. 121-140

PDF XML

Abstract

In the present study, a CFD code was developed to estimate the cooling effect of a seawater supply system on a steel plate. The seawater supply system was modeled using nozzle spray characteristics and experimental data, with the seawater being sprayed in a fan-shaped pattern. To calculate the flow of the film on a steel plate, surface film model was employed. Conjugate heat transfer model was used to develop a CFD code for calculating the heat transfer between the seawater and the steel plate without boiling effects. Calculating the trajectory of the sprayed fluid particles in the atmosphere is computationally expensive, so the estimated spray area data from mathematical modeling was used in the computational analysis. Gravity and drag force acting on the fluid particles were considered to estimate the spray area. The fluid particles were assumed to be spherical shape, constant size, with no break-up. The estimated spray area data are used in the calculations of the source terms in the governing equations to compute surface film flow. We performed a quasi-steady analysis by adding the source terms at specific intervals. The cooling effect of the seawater supply system on the steel plate was estimated for various nozzle angles and flow rates, and the spray area and effective cooling area were calculated. The wetted area on the steel plate surface was defined as the spray area, while the effective cooling area was defined as the region where the steel plate surface temperature drops below 300 K after 600 seconds of seawater spraying. The spray area and effective cooling area all increased as the flow rate increased. Considering the wind and ship velocity, the spray area and effective cooling area decreased significantly compared to the case without wind and ship velocity.

Keywords

강판 냉각(Steel plate cooling)

표면 액막 모델(Surface film model)

전산유체역학(Computational fluid dynamics)

References

2008, Choi, J.H., Lee, J.S., Kim, J.H., Lee, S.H. and Kim, T.K., "Infrared Signature Analysis of a Ship for Different Atmosphere Temperature and Wind Velocity," J. Korea Inst. Milit. Sci. Technol., Vol.11, No.5, pp.84-91.

2014, Kil, T.J. and Kim, T.K., "Study on Infrared Signature Variations of a Naval Ship Operated at Sea Near Geoje-do Island," J. Korea Inst. Milit. Sci. Technol., Vol.17, No.1, pp.15-24.

10.9766/KIMST.2014.17.1.015

2012, Kim, Y., "A Study on the Infrared Signature of a Naval Ship under the Marine Climate," J. Soc. Nav. Archit. Korea, Vol.49, No.3, pp.264-272.

10.3744/SNAK.2012.49.3.264

2017, Yoon, S., Jung, H. and Cho, Y., "An Experimental Study on the Dispersion Characteristics of Seawater Injection Nozzle for Hull Cooling," J. Korea Inst. Milit. Sci. Technol., Vol.20, No.6, pp.767-773.

2017, Liang, G. and Mudawar, I., "Review of Spray Cooling-Part 1: Single-phase and Nucleate Boiling Regimes, and Critical Heat Flux," Int. J. Heat Mass Transf., Vol.115, pp.1174-1205.

10.1016/j.ijheatmasstransfer.2017.06.029

2017, Liang, G. and Mudawar, I., "Review of Spray Cooling-Part 2: High Temperature Boiling Regimes and Quenching Applications," Int. J. Heat Mass Transf., Vol.115, pp.1206-1222.

10.1016/j.ijheatmasstransfer.2017.06.022

2012, Xie, J.L., Zhao, R., Duan, F. and Wong, T.N., "Thin Liquid Film Flow and Heat Transfer under Spray Impingement," Appl. Therm. Eng., Vol.48, pp.342-348.

10.1016/j.applthermaleng.2012.04.044

2018, Liu, H., Cai, C., Yan, Y.A., Jia, M. and Yin, B., "Numerical Simulation and Experimental Investigation on Spray Cooling in the Non-boiling Region," Heat Mass Transf., Vol.54, No.12, pp.3747-3760.

10.1007/s00231-018-2402-7

2011, Cheng, W.L., Han, F.Y., Liu, Q.N. and Fan, H.L., "Spray Characteristics and Spray Cooling Heat Transfer in the Non-boiling Regime," Energy, Vol.36, No.5, pp.3399-3405.

10.1016/j.energy.2011.03.039

2010, Wang, Y., Liu, M., Liu, D., Xu, K. and Chen, Y., "Experimental Study on the Effects of Spray Inclination on Water Spray Cooling Performance in Non-boiling Regime," Exp. Therm. Fluid Sci., Vol.34, No.7, pp.933-942.

10.1016/j.expthermflusci.2010.02.010

2013, Meredith, K., de Vries, J., Wang, Y. and Xin, Y., "A Comprehensive Model for Simulating the Interaction of Water with Solid Surfaces in Fire Suppression Environments," Proceedings of the Combustion Institute, Vol.34, No.2, pp.2719-2726.

10.1016/j.proci.2012.06.094

2007, Collin, A., Boulet, P., Parent, G. and Lacroix, D., "Numerical Simulation of a Water Spray-Radiation Attenuation Related to Spray Dynamics," Int. J. Therm. Sci., Vol.46, No.9, pp.856-868.

10.1016/j.ijthermalsci.2006.11.005

2010, Xing, T. and Stern, F., "Factors of Safety for Richardson Extrapolation," J. Fluids Eng., Vol.132, No.6, p.061403.

10.1115/1.4001771

Information

Publisher :Korean Society for Computational Fluids Engineering
Publisher(Ko) :한국전산유체공학회
Journal Title :Journal of Computational Fluids Engineering
Journal Title(Ko) :한국전산유체공학회지
Volume : 30
No :2
Pages :121-140
Received Date : 2025-05-09
Revised Date : 2025-06-10
Accepted Date : 2025-06-10
DOI :https://doi.org/10.6112/kscfe.2025.30.2.121

Journal of Computational Fluids Engineering ISSN:1598-6071(Print) 3022-6252(Online) 한국전산유체공학회지

All Issue