Vortex Flows and Related Numerical Methods II
ESAIM: Proceedings,
Vol. 1, 1996, pp. 415-427
Numerical Simulation of an
Unsteady Axisymmetric Flow in a Poppet Valve
Using a Vortex Method
Tetsuhiro Tsukiji and Yoshikazu Suzuki
Department of Mechanical Engineering
Ashikaga Institute of Technology
268-1 Oomae-cho, Ashikaga-city, Tochigi-prefecture, Japan
Abstract
In the present study, numerical simulations of the flow in a
three-dimensional axisymmetric poppet valve are conducted using a vortex
method. The fluids are assumed inviscid and incompressible. The
vibration of the poppet, supported by a spring and a dash pot, occurs in
the axial direction in some range of parameters. The numerical
simulations are carried out by varying systematically the parameters of
the calculation, namely the supply pressure, the spring constant, the mass
of the poppet and the conical angle of the poppet. The process of jet
flow development, the fluctuations of the valve lift and the velocity
distributions in the valve are investigated for the poppet vibrating.
Vortex Flows and Related
Numerical Methods II
Contents / Table des matières
Index by Author / Index par auteur