  Azimuthal anisotropy of produced particles is one of the most important
observables used to access the collective properties of the expanding medium
created in relativistic heavy-ion collisions. In this paper, we present second
($v_{2}$) and third ($v_{3}$) order azimuthal anisotropies of $K_{S}^{0}$,
$\phi$, $\Lambda$, $\Xi$ and $\Omega$ at mid-rapidity ($|y|<$1) in Au+Au
collisions at $\sqrt{s_{\text{NN}}}$ = 54.4 GeV measured by the STAR detector.
The $v_{2}$ and $v_{3}$ are measured as a function of transverse momentum and
centrality. Their energy dependence is also studied. $v_{3}$ is found to be
more sensitive to the change in the center-of-mass energy than $v_{2}$. Scaling
by constituent quark number is found to hold for $v_{2}$ within 10%. This
observation could be evidence for the development of partonic collectivity in
54.4 GeV Au+Au collisions. Differences in $v_{2}$ and $v_{3}$ between baryons
and anti-baryons are presented, and ratios of $v_{3}$/$v_{2}^{3/2}$ are studied
and motivated by hydrodynamical calculations. The ratio of $v_{2}$ of $\phi$
mesons to that of anti-protons ($v_{2}(\phi)/v_{2}(\bar{p})$) shows centrality
dependence at low transverse momentum, presumably resulting from the larger
effects from hadronic interactions on anti-proton $v_{2}$.
