High bypass ratio turbojet engine fan blades aerodamping coefficient computation
Keywords:
nonsteady flow, fan blades, aerodamping coefficient, interblade phase angle, turbojet engine, high bypass ratio.Abstract
Investigation of interblade phase angle affect on aerodamping coefficient value for three blade modes based on nonsteady viscous 3D flow in high bypass ratio turbojet engine fan has been performed. For researches computational grid of 14 823 000 cells has been used. High flow parameters reiteration has been reached for 5 rotor revolutions. computational time wiht 2 nodes was about 40 hours. (24 cores in each node). For first blade mode at interblade phase angles ?40°, ?20° and 0° negative aerodamping coefficient was obtained.Downloads
Published
2018-03-07
Issue
Section
AIRCRAFT AND ROCKET AND SPACE TECHNOLOGY