  With our coupled jet-fluid model, we study the nuclear modifications of full
jets and jet structures for single inclusive jet and $\gamma$-jet events in
relativistic heavy-ion collisions. The evolution of full jet showers is studied
via a set of coupled transport equations including the effects of collisional
energy loss, transverse momentum broadening and medium-induced splitting. The
dynamics of the jet energy and momentum deposited into the medium is described
by hydrodynamic equations with source terms. Our detailed analysis indicates
that collisional absorption (energy loss) tends to narrow the jet shape
function while transverse momentum kicks and medium-induced radiations broaden
the jet transverse profile. Also, jet-induced flow plays a significant
contribution to jet shape function and dominates at large angles away from the
jet axis. The final nuclear modification pattern for the jet shape function is
a combined effect from various jet-medium interaction mechanisms. Our detailed
studies for single inclusive jets and $\gamma$-jets for various kinematics
indicate that the nuclear modification of jet shape has strong dependence on
jet energy and collision energy, and weak dependence on jet flavor (quark or
gluon).
