The analysis sensitivity of strength, rigid and dynamic characteristics the console rotor to variation design parameters in paper describes speed rotation shaft, material impeller vary. dependences radial axial displacements on angular velocities modulus elasticity are established. For objects type rotary systems with a cantilever arrangement impeller, not one, but set criteria has been introdu...

The article presents the interim results of ongoing study (http://journals.ru.lv/index.php/SIE/article/view/6884/5683). At this stage, measurements are made with a model in which we combined mechanical part electromechanical part. presentation demonstrating principle operation scheme patented device has already been constructed as an object research. A rotating magnet was connected to impeller ...

The internal flow is very complex in the multiphase pump, especially static impeller, where more disorganized than that impeller wheel, and it will cause greater hydraulic losses. In order to investigate deeply rules within all kinds of losses are analyzed quantificationally pump. Based on standard SST k-ω turbulence model, selected helical axial pump as research object, used three-dimensional ...

It is well known that flow instabilities called rotating stall and surge may occur in non-cavitating turbomachines at flow rates smaller than design. Rotating stall is a local instability at the turbomachinery which is basically not dependent on the hydraulic system in which the turbomachine is installed. The stalled region rotates faster than impeller. Surge is a system instability in a hydrau...

An investigation has been carried out to assess the effect of volute design on the performance of a centrifugal compressor. Three volutes, based on a turbocharger compressor volute, have been fabricated and tested. These volutes provided two that were larger than the original design, and one that was smaller. The alternative volute designs were fabricated from sheet steel and had a square cross...

• Euler-Lagrange simulations of agitated solids suspensions including breakage Solids distribution and flow structures evolve with particle size reduction process Revolving impeller is the major source Two-way coupled solids-liquid in a lab-scale mixing tank operating at Reynolds number 4000 volume fraction 10% have been performed. The keep track individual particles, their collisions. Upon col...

Multi-objective genetic algorithm (GAs) is used for pump design pareto optimization, competing objectives for centrifugal pump design are total head (H), input power (Ps), hydraulic efficiency ( H η ), and input parameter are capacity (Q), and the outer radius of the impeller ( ). Multi-objective presents a set of compromised solution, and provides non-dominated optimal choices for designer. 2 ...

Oil-water emulsion flow behaviour was characterized with respect to surface chemistry. A state of the art stirred tank experimental set up was constructed that measured dynamic droplet size evolution with varying impeller speed. This technique was demonstrated with model Nexbase oil (with and without SPAN 80 surfactants) and water emulsions. Further, a CFD model for droplet size prediction was ...