  We study random velocity effects on a two-species reaction-diffusion system
consisting of three reaction processes $A + A \rightarrow (\varnothing, A),A+B
\rightarrow A$. Using the field-theoretic perturbative renormalization group we
analyze this system in the vicinity of its upper critical dimension $d_c = 2$.
Velocity ensemble is generated by means of stochastic Navier-Stokes equations.
In particular, we investigate the effect of thermal fluctuations on reaction
kinetics. The overall analysis is performed to the one-loop approximation and
possible macroscopic regimes are identified.
