On Principle of the Rolling Turbine

0364611 - ÚT 2012 RIV CZ eng C - Conference Paper (international conference)
Falta, Jiří - Maršík, František - Sedláček, M.
On Principle of the Rolling Turbine.
Conference Topical Problems of Fluid Mechanics 2011. Prague: Institute of Thermomechanics AS CR, v. v. i., 2011 - (Příhoda, J.; Kozel, K.), s. 29-32. ISBN 978-80-87012-32-1.
[Topical Problems of Fluid Mechanics 2011. Praha (CZ), 16.02.2011-17.02.2011]
Institutional research plan: CEZ:AV0Z20760514
Keywords : stability of flow * perturbation theory * slender-channel theory
Subject RIV: BK - Fluid Dynamics

A new principle of a fluid machine called "rolling turbine" is analyzed using two different approaches. The first one utilizes the stability theory for inviscid flow to explain the origin of the vorticity which is crucial for existence of the driving force. The second approach uses the perturbation theory for an approximate solution of the problem describing the machine working in its "pump" mode. The slender-channel theory is applied to simplify the Navier-Stokes equations.
Permanent Link: http://hdl.handle.net/11104/0200053