Simulation of liquid dynamics in a cryogenic mobile vessels

• Autorzy: Lisowski E. , Domagała M.
• Języki publikacji: EN

Abstrakty

EN

Technical gases becomes liquid in extremely low temperature ranging minus 200 °C and very high pressure what makes that transportation devices have to perform very strict requirement. Presented paper shows selected aspect of simulation of liquefied gas sloshing in aspect of requirements that mobile vessels have to fulfill. Mobile vessel which is the object of simulation is a two shell tank with vacuum and layer insulation between shells adapted to 20 ft container. It is assigned for see, railway and road transport and have to follow all of requirements for such transportation systems. Requirements for such tank are enclosed in standard ISO 1496-3 which deals with freight containers and standard EN13530-2 that describes vacuum, cryogenic vessels. The standards EN13530-2 defines that vessels which are to be filled equal or less than 80% should be fitted with surge plates to provide vessel stability and limit dynamic loads. Additionally surge plates area has to be at least 70% of cross section of the vessel and volume between surge plates shall be not higher than 7.5 m3. Structure of the vessel as well as the surge plate should resist of longitudinal acceleration of 2g. Additionally surge plates shall resists stresses caused by pressure distributed across the area of surge plate and the pressure shall be calculated as mass of liquid between plates and acceleration 2g. In this paper is presented way of simulation of dynamic behavior of liquefied Argon on vessel structure. A numerical methods like Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) were used for this purpose. Combination of both tools allowed to get pick value of dynamic pressure that arising during acceleration of 2g, which was assumed is 0.2 s and investigate resistance of vessel and container structure. Presented approach is called Fluid – Structure Interaction simulation. In CFD simulation was used Ansys CFX code, while for FEA calculations Pro/Mechanica package.

Słowa kluczowe

EN

liquid dynamics; CFD analysis; free flow; cryogenic tank; simulation; modelling

PL

dynamika cieczy; analiza CFD; przepływ swobodny; zbiornik kriogeniczny; symulacja

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 3 spec.
• Strony: 77--80
• Opis fizyczny: Bibliogr. 11 poz., rys., wykr.

Twórcy

autor

Lisowski E.

• Cracow University of Technology, Insitute of Applied Informatics, al. Jana Pawła 37, 31-864 Kraków, Poland

autor

Domagała M.

• Cracow University of Technology, Insitute of Applied Informatics, al. Jana Pawła 37, 31-864 Kraków, Poland

Bibliografia

• [1] ISO 1496-3 issued on November 1999, Series 1: freight containers–Specifications and testing–Part 3: Tank containers for liquids, gases and pressurized dry bulk.
• [2] EN13530-2 „Cryogenic vessels–Large transportable vacuum insulated vessels–Part 2: Design, fabrication, inspection and testing”.
• [3] S. Cloete, J. E Olsena, P. Skjetne, CFD modeling of plume and free surface behavior resulting from a sub-sea gas release, Applied Ocean Research Vol. 31 (2009) 220-225.
• [4] XinJian Chen, A free-surface term correction method for simulating shallow water flows, Journal of Computational Physics Vol. 189, iss. 2, (2003) 557-578.
• [5] J-Ph, Torréa, D-F. Fletcherb, T. Lasuyec, C. Xuereba, Single and multiphase CFD approaches for modelling partially baffled stirred vessels: Comparison of experimental data with numerical predictions, Chemical Engineering Science Vol. 62, Issue 22, (2007) 6246-6262.
• [6] S. M. Shekhara, S. Jayanti, CFD Study of Power and Mixing Time for Paddle Mixing in Unbaffled Vessels, Chemical Engineering Research and Design Vol. 80 (2002) 482-498.
• [7] R. Gryboś, Fundamentals of fluid mechanics Part 1. Kinematics, dynamics of liquids and gases, hydrostatics, (in Polish), PWN (1998).
• [8] J. H. Ferziger, M. Peric, Computational Methods for Fluid Dynamics, 3rd Edition, Springer Verlag (2002).
• [9] F. S. De Sousa, N. Mangiavacchi, L. G. Nonatoa, A. Casteloa, M. F. Toméa, V. G. Ferreiraa, J. A. Cuminatoa and S. McKeec, A front-tracking/front-capturing method for the simulation of 3D multi-fluid flows with free surfaces, Journal of Computational Physics, Vol. 198, Issue 2 (2004) 469-499.
• [10] M. Warmowska, Numerical simulation of liquid motion in partly filled tank, Opuscula Mathematica Vol. 26, No. 3 (2006).
• [11] R. T. Jacobsen, S. G. Penoncello, E. W. Lemmon, Thermodynamic Properties of Cryogenic Fluids, Plenum Press, (1997).