75504 Magazine of Civil Engineering Magazine of Civil Engineering 2712-8172 2 10.18720/MCE.19.10 About the frontal resistance to motion of the cylinder О лобовом сопротивлении движению цилиндра Girgidov Artur ardgir@mail.ru Peter the Great St. Petersburg Polytechnic University 20 02 2011 1 19 9 11

According to conventional diagram of the flow past cylinder, dissipated power in the part of potential flow, formed by windward side of cylinder is calculated. Comparison of this power with the power, required to overcome the resistance to motion of the cylinder, shows that thin boundary layer in windward side of cylinder forms under Reynolds numbers exceeded 100.

 resistance to motion of badly streamline bodies form influence of windward side power estimation of resistance to motion energy dissipation restriction of area of applicability of the standard schematization of a stream