75504 Magazine of Civil Engineering Magazine of Civil Engineering 2712-8172 8 10.5862/MCE.23.6 Changing of energy dissipation in the transition of laminar flow to turbulence Изменение диссипации энергии при переходе от ламинарного режима к турбулентному Girgidov Artur ardgir@mail.ru Peter the Great St. Petersburg Polytechnic University 08 09 2011 5 23 49 52

Under the same fixed dynamical boundary conditions the energy dissipation in laminar and turbulent flow are compared. As examples the flow past a plate and the flow through a pipe are considered.

It is found out that in turbulent flow energy dissipation is essentially less than in laminar flow (under the same boundary dynamical conditions).

 energy dissipation turbulent and laminar flow flow past a cylinder flow in a pipe