Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

STEP-UP HYDRODYNAMIC TRANSMISSION DESIGN

Lyamasov A.K. 1
1 FederalState EducationalInstitution of HigherProfessional Education National Research University “Moscow Power Engineering Institute”
Results of step-up hydrodynamic transmission (HDT) investigationbased on CFD method toelaboratepracticalrecommendationsfortheir design are presented. In HDT rotating speed of turbine wheel is higher than that of pump wheel. Such transmissions can be usedonsmall hydropower plantsandwind farms for application serialhigh-speedgenerators. Investigation of HDT, designedby the methodic used forreducinghydrodynamic transmission with Ansys CFX preprocessor,showedstrong flow separationandvortex formation both along flow passages and inside runners. Algorithm was proposedthat allows to modifythosemethods and to obtain thegeometry of highlyefficient HDT. Results of ANSYS CFXbladesystems modeling,showingtheircompatibility andprovingprinciple possibility of creationsuch devices, are presented.