Reducing the volume of the sac or creating displacing needle tip cone will decrease the turbulization
of the flow and related problems of nozzle leakage and increasing of additional force of cavitation erosion on the walls of nozzle holes.
That is why the effect of the turbulization delay has not been achieved on standard (separated) slender bodies of revolution.
Nesteruk, "Peculiarities of turbulization and separation of boundary-layer on slender axisymmetric subsonic bodies," Naukovi Visti, NTUU, vol.
Two basic modes of a flame turbulization are known: natural (autoturbulization) and artificial turbulization with the help of various obstacles.
The optimization condition was formulated as an equidistantness of intersection points of the interior (1) and exterior (2) boundaries of turbulent layers from a plane of "lattices." This condition allows to establish an optimum relation between geometric parameters of individual bodies (as elements of the accelerator) in the given cross-section and also to determine the coordinates of following "lattice" with turbulization elements.
The recommended methods of calculation either refer to turbulent flows of considerable depth or are based on the assumptions of turbulization of laminar flows by the rain drops.
As can be observed, the rain drops had caused turbulization of the main flow, which remained laminar.
It has been found that strong effect of surface roughness still does not lead to flow turbulization. The critical Reynolds numbers are considerably larger for shallow flows than those obtained for common and enforced flows of liquid.
Processes in the working zone of this apparatus involve a combination of various hydrodynamic phenomena, including high-gradient flow in the gap between rotating and immobile elements, intense turbulization
, pump effects, complicated velocity fields, vortex formation, cavitation and pulsation due to variations of the by-pass flow cross section, etc.
It consists of additional turbulization
of gaseous medium which gives higher kinetic energy to the particles in the gas flow.
Approach of errors towards constant asymptotic values is determined by high flow turbulization degree, due to which the impact of rotor driving and retarding forces reaches equilibrium and liquid leakages further increase proportionally to total flow rate.
This is a consequence of flow turbulization in the meter passage, though liquid viscosity influence on leakages through the gaps remains.