Injection or bubble generation in the fluid is applied in various important areas such as the chemical processing, nuclear energy, food industry, materials processing. The main purpose of these applications is to enhance heat and mass transfer processes and to reduce energy consumption. However, the efficiency of bubbles or microbubbles for the transfer processes enhancement is reduced if the speed increases [1]. In [2,3] the possibility was demonstrated of the heat transfer enhancement around the bodies (cylinders) in the Reynolds critical region area by injecting the air bubbles into the free flow [2] or the generation of electrolyte microbubbles on the surface [3]. The paper presents the results of the studies in the microbubbles influence on the local transfer characteristics around the cylinder for the Reynolds number range within 0.2x105-1.2x105. It has been established that in the case of the polished glass cylinder (Fig. 1, a) the injection of electrolytic hydrogen microbubbles into the boundary layer does not affect the hydrodynamic and heat transfer characteristics throughout the current density range J = (0-300mA / cm2). The effect of the microbubbles on the flow over the cylinder occurs after a period of time τ _e since the activation of the microbubble injection process. After the time τ _e has elapsed, the change of the flow regime occurs in the leap when triggering or stopping the generation of the microbubbles in the limit layer of the cylinder. This effect was used to dynamically conduct the flow by periodically injecting the microbubbles into the boundary layer [4].It has been found that in the time interval τ _e the surface of the cylinder is covered with a thin porous calcium carbonate layer CaCO3 in polymorphic form of calcite and or argonate (Fig. 1, b). The formation of the porous calcareous thin layer contributes to the increase of the departure diameter of the hydrogen microbubbles in the front part of the cylinder. The analysis of the variation of heat transfer coefficient on the surface of the cylinder (fig. 2) showed that the effect of intensification of forced convection by means of the microbubbles is the transition into the boundary layer from the laminar flow regime (Fig.2.,curve 1) to the turbulent regime (fig.2, curve 2).It has been found that the porous layer on the surface of the cylinder practically does not affect the flow around the cylinder without the injection of the microbubbles and the value Recr does not decrease below the limit value imposed by the development of the cavitational flow regime Re = 1.2x105.