The effects of fluctuating body forces on annular liquid jets (Q1904930)

The author investigates the asymptotic equations governing the fluid dynamics of axisymmetric, thin, inviscid, incompressible, constant density, annular liquid jets in a non-inertial and non-rotating frame of reference. Time-independent boundary conditions at the nozzle exit are imposed. The numerous graphs show the variation of the Froude number, pressure coefficient, and convergence length with time. The corresponding power spectra have sharp peaks. It has also been shown that an increase in the frequency of the imposed body force fluctuations results in the creation of superharmonics and longer phase planes characterized by many loops.