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We investigate turbulent limit of the forced Burgers equation
supplemented with a continuity equation in three dimensions. The
scaling exponent of the conditional two-point correlation function
of density, i.e., $\langle\rho_{(x_{1})}\rho_{(x_{2})} |\Delta u
\rangle \sim |x_{1}-x_{2}|^{-\alpha_{3}}$, is calculated
self-consistently in the nonuniversal region from which we obtain
$\alpha_{3}=3$. Also we derive an equation governing the evolution
of the probability density function (PDF) of longitudinal velocity
increments in length scale, from which a possible mechanism for
the dependence of the inertial PDF to one-point $u_{rms}$ is
developed.
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