Study on gas-dynamic effects in nozzles during their oscillating motion

A flow of a viscous gas from a nozzle, which oscillates around an axis perpendicular to the axis of symmetry of the nozzle, is considered. The study of the gas-dynamic process is based on the numerical solution of the two-dimensional and three-dimensional Navier-Stokes equations, written in a non-inertial reference frame associated with the nozzle and using the relative components of velocities and accelerations. The flow characteristics in plane and axisymmetric nozzles and jets exhausted from it are obtained using a high order of accuracy method.A flow of a viscous gas from a nozzle, which oscillates around an axis perpendicular to the axis of symmetry of the nozzle, is considered. The study of the gas-dynamic process is based on the numerical solution of the two-dimensional and three-dimensional Navier-Stokes equations, written in a non-inertial reference frame associated with the nozzle and using the relative components of velocities and accelerations. The flow characteristics in plane and axisymmetric nozzles and jets exhausted from it are obtained using a high order of accuracy method.