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Balouchi, Yahya, Zivdar, Mortaza, Rahimi, Rahbar, Mohebbi-Kalhori, Davod. (1405). Non-Dimensional Benchmarking of Sloshing Simulations in a Pressurized LNG Tank Against a Cryogenic Sloshing Correlation. نشریه علمی دانشگاه سیستان و بلوچستان, (), -. doi: 10.22111/cpd.2026.57271.1103
Yahya Balouchi; Mortaza Zivdar; Rahbar Rahimi; Davod Mohebbi-Kalhori. "Non-Dimensional Benchmarking of Sloshing Simulations in a Pressurized LNG Tank Against a Cryogenic Sloshing Correlation". نشریه علمی دانشگاه سیستان و بلوچستان, , , 1405, -. doi: 10.22111/cpd.2026.57271.1103
Balouchi, Yahya, Zivdar, Mortaza, Rahimi, Rahbar, Mohebbi-Kalhori, Davod. (1405). 'Non-Dimensional Benchmarking of Sloshing Simulations in a Pressurized LNG Tank Against a Cryogenic Sloshing Correlation', نشریه علمی دانشگاه سیستان و بلوچستان, (), pp. -. doi: 10.22111/cpd.2026.57271.1103
Balouchi, Yahya, Zivdar, Mortaza, Rahimi, Rahbar, Mohebbi-Kalhori, Davod. Non-Dimensional Benchmarking of Sloshing Simulations in a Pressurized LNG Tank Against a Cryogenic Sloshing Correlation. نشریه علمی دانشگاه سیستان و بلوچستان, 1405; (): -. doi: 10.22111/cpd.2026.57271.1103

Non-Dimensional Benchmarking of Sloshing Simulations in a Pressurized LNG Tank Against a Cryogenic Sloshing Correlation

Chemical Process Design
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 26 مهر 1405
نوع مقاله: Research Article
شناسه دیجیتال (DOI): 10.22111/cpd.2026.57271.1103
نویسندگان
Yahya Balouchi1؛ Mortaza Zivdar* 2؛ Rahbar Rahimi1؛ Davod Mohebbi-Kalhori1
1Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran.
2Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran
چکیده
Sloshing simulations of cryogenic tanks are usually validated against a single pressure history, which cannot show whether interfacial heat and mass transfer is correct in magnitude or correctly partitioned between quiescent and sloshing-induced contributions. This study benchmarks volume-of-fluid simulations with a Hertz–Knudsen–Schrage closure of a Type-C tank holding a pseudo-pure pressurized LNG mixture (CH4/C2H6/C3H8/N2 = 90/6/3/1 mol%, 10–30 bar; CO2 carried only as a passive tracer) against the sloshing Nusselt–Reynolds correlation of Ludwig et al., using 14 sloshing runs and four matched static runs at a single excitation (0.4 Hz, 3°; ReS = 1.8–2.2 × 105). (1) The extracted sloshing Nusselt numbers (25–66) lie a factor of 1.6–4.8 above the correlation; since the absolute level depends on the effective closure coefficient, this indicates order-of-magnitude consistency only. (2) The static runs give NuS = 10.4–18.6 against unity in the unexcited experiment; this cannot be attributed to the closure coefficient and is traced mainly to eddy diffusion of the k–ε model in the stratified static layer. (3) The paired enhancement factor is 2.52–2.69 for a 60 s window (1.3–4.3 depending on the window), about six times below the experimental value. (4) The arrest of boundary-layer growth under sloshing is reproduced qualitatively. Because only one excitation was used, the slope of the correlation is not tested, and the 25 and 30 bar results are qualitative owing to the ideal-gas vapor density.
کلیدواژه‌ها
: pressurized LNG؛ sloshing؛ interfacial mass transfer؛ sloshing Nusselt number؛ volume of fluid
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