Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.
A rectangular storage tank with an immersed cylindrical
tube bundle heat exchanger has been simulated by Lattice
Boltzmann Method (LBM). The details of transient temperature
distributions and flow streamlines in the nearby field of each
tube are clearly demonstrated as well as the complexity of the
overall flow field and the extent of the mixing during discharge.
The LBM makes the directly simulation possible and the
computational speed is increased comparing to a conventional
porous medium model simulation. The transient averaged
Nusselt numbers of the tube bundle have been obtained, which
can also be applied in other applications such as numerical
simulations of porous medium models.