TY  - JOUR
AU  - Jazayeri, Seyed Ali 
AU  - Khoei, Ehsan Molla Hasanzadeh 
PY  - 2008
TI  - Numerical Comparison of Thermal Stratification due Natural Convection in Densified LOX, LN2 Tanks 
JF  - American Journal of Applied Sciences
VL  - 5
IS  - 12
DO  - 10.3844/ajassp.2008.1773.1779
UR  - https://thescipub.com/abstract/ajassp.2008.1773.1779
AB  - The growth of natural circulation and thermal stratification inside LOX, LN2 storage tanks due to heat transfer from surroundings is investigated using a non-equilibrium, two-domain, mathematical model. The two-dimensional model is considered for the liquid domain in two cases and a lumped, thermodynamic model is utilized for vapor domain. The vapor is assumed to behave like an ideal gas. The developed mathematical model for liquid domain consists of conservation of mass, momentum, energy equations with Boussinesq approximation. The coupling of two domains is carried out using energy balance at the interface. An implicit, finite-volume technique with a uniform mesh for liquid domain is used to predict the velocity and temperature fields.