waterwheels are the oldest types of hydraulic machines. these turbines are of relatively simple design, large diameter, low rotational speed and high torques. but applying them as micro hydros of high speed and small diameter is yet to be explored. a micro hydro waterwheel of one meter diameter was designed and manufactured at the iranian  esearc†h organization for science and technology (irost...

An important element of the flow path industrial compressors is return channel (RCh). Their preliminary design based on “classic” recommendations last century. The current state CFD (Computational Fluid Dynamics) makes it possible to effectively use this technology for research and optimization RCh, including development a methodology their design. objects - centrifugal compressor stages interm...

The centrifugal pump is one of the most important pieces energy-consuming equipment in various hydraulic engineering applications. This paper takes a low specific speed as research object. Based on method combining numerical calculation and experimental verification, influence gap drainage structure performance its internal flow field distribution were investigated. inside impeller under differ...