TY - JOUR
AU - Savelyeva, M V
AB - The research elaborates the main characteristics of the liquid propellant engines; it determines that some turbopump units have got the frequency of rotor spinning up to 100 000 and even 120 000 r.p.m. The authors analyse the current methodologies to specify losses connected with disc friction. The methodologies determining disc friction coefficient often obtain criterion-empirical character, and due to increasing a number of rotor spinning of turbopump unit of the liquid propellant engines, they reflect the specification reliability inaccurately. The research demonstrates equations to determine disk friction coefficients based on considering the theory of three-dimensional boundary layer to a rotational flow taking into account the turbulent process of velocity distribution. The authors give recommendations on determining an index of velocity distribution degree depending on Reynolds rotation criterion of a disc and plug flow.
TI - Disc friction to specify power balance of a turbopump unit of LPE
JF - IOP Conference Series Materials Science and Engineering
DO - 10.1088/1757-899X/822/1/012023
DA - 2020-04-01
UR - https://www.deepdyve.com/lp/iop-publishing/disc-friction-to-specify-power-balance-of-a-turbopump-unit-of-lpe-KNIPqbLITY
SP - 012023
VL - 822
IS - 1
DP - DeepDyve
ER -