Pattern formation caused by convective flows coming from the opposite directions

It is shown that convective flows of the inhibitor variable coming from the opposite directions may cause violation of stability of the spatially uniform state. The conditions of the reaction-convection-diffusion instability are obtained which are the generalization of the Turing instability conditions for a reaction-diffusion system. These analytic results were confirmed by numeric simulations on the example of the Brusselator model.