Based on analysis of the ANSYS CFX software

and adopting the standard k-ε turbulence model and the upgradable wall-surface function metod

a three-dimensional steady turbulent flow field in the feed-water pump of boiler equipped with 1 000 MW unit has been calculated

the velocity and pressure distribution of flow field within the main parts

namely impeller and guide vanes

being achieved.Analysis of numerical calculation results and the predicted characteristic curves of the feed-water pump show that the relative error between the predicted discharge head of said feed-water pump and the tested value is in a range of 1.8%~7.8%

and the relative error between the predicted efficiency of feed-water pump and the tested value is in a range of 3.85%~6.3%

being basically tallied.