  Present study explores the capability of the pseudopotential-based thermal
lattice Boltzmann (LB) model in emulating the underlying thermohydrodynamics of
flow boiling in a narrow fluidic channel. In contrary to the conventional
Eulerian-averaging-based approach, it adheres to the mesoscopic Boltzmann
statistical averaging, which allows natural phase separation and no need of
assuming the initial interface. A narrow fluidic channel, with specified inlet
temperature and flow rate, and exit pressure, housing a microheater at the
bottom wall is considered as the computational domain of interest. Adopted
boundary conditions ensures subcooled flow boiling through the channel, and the
present algorithm successfully emulates the corresponding characteristics. The
complete dynamics of bubble ebullition at the nucleation site, and subsequent
flow regimes are adequately reproduced. Both bubbly and slug flow patterns are
illustrated through the temporal evolution of the interface, and associated
pressure drop and heat transport characteristics. Dependence of the departure
characteristics on the flow rate, wall superheat and surface wettability is
found to be consistent with available literature, which substantiates the
competence of the present algorithm.
