  Measurements of heavy flavor quark (charm and bottom) correlations in heavy
ion collisions are instrumental to understand the flavor dependence of energy
loss mechanisms in hot and dense QCD media. Experimental measurements of these
correlations in baseline $p$+$p$ collisions are crucial to understand the
contributions of perturbative and non-perturbative QCD processes to the
correlation functions and further help in interpreting correlation measurements
in heavy ion collisions. In this paper, we investigate $D$-$\bar{D}$ meson
correlations and $D$ with one particle from $D$ meson decay daughter
correlations using PYTHIA Event Generator in $p$ + $p$ collisions at $\sqrt{s}$
= 200, 500 and 5500 GeV. Charm/bottom events are found to contribute mainly to
the away side/near side pattern of $D$-electron correlations, respectively. In
the energy region of RHIC, $D$-$\bar{D}$ correlations inherit initial
$c$-$\bar{c}$ correlations and $B\rightarrow DX$ decay contribution is
insignificant. Furthermore, Bottom quark correlations are suggested to be
applicable at LHC energy, as the bottom contributions on $D$ related
correlations are relatively large.
