TY - JOUR
T1 - Numerical investigation on transient oil-filling process of hydraulic retarder
AU - Yan, Qingdong
AU - Zou, Bo
AU - Wei, Wei
AU - Yu, Tao
PY - 2012/1
Y1 - 2012/1
N2 - With the aim to obtain the time-varying braking performance of emergency oil-filling process of hydraulic retarder, a numerical simulation model of flow channel was established based on transient CFD method. The inlet velocity, outlet velocity and a steady flow field result were calculated and applied as the boundary condition and initial condition. Then the transient simulation of emergency oil-filling process was calculated when the initial rotor rotating speed was 2 640 r/min. The pressure, the velocity and the turbulence kinetic energy distribution of internal flow field under different braking time were studied, and the time-varying braking torque was calculated by CFD post-processing analysis. Comparison of the experimental data and simulation results showed that the calculation tolerance of the braking torque was 12.7%. It is indicated that the simulation method and model are accurate and reliable, and the transient simulation method is more appropriate to predict the time-varying braking performance of hydraulic retarder.
AB - With the aim to obtain the time-varying braking performance of emergency oil-filling process of hydraulic retarder, a numerical simulation model of flow channel was established based on transient CFD method. The inlet velocity, outlet velocity and a steady flow field result were calculated and applied as the boundary condition and initial condition. Then the transient simulation of emergency oil-filling process was calculated when the initial rotor rotating speed was 2 640 r/min. The pressure, the velocity and the turbulence kinetic energy distribution of internal flow field under different braking time were studied, and the time-varying braking torque was calculated by CFD post-processing analysis. Comparison of the experimental data and simulation results showed that the calculation tolerance of the braking torque was 12.7%. It is indicated that the simulation method and model are accurate and reliable, and the transient simulation method is more appropriate to predict the time-varying braking performance of hydraulic retarder.
KW - Hydraulic retarder
KW - Numerical investigation
KW - Transient flow field
UR - http://www.scopus.com/inward/record.url?scp=84856555679&partnerID=8YFLogxK
U2 - 10.6041/j.issn.1000-1298.2012.01.003
DO - 10.6041/j.issn.1000-1298.2012.01.003
M3 - Article
AN - SCOPUS:84856555679
SN - 1000-1298
VL - 43
SP - 12
EP - 17
JO - Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery
JF - Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery
IS - 1
ER -