Jet-driven helmholtz fluid oscillator

Details Jet-driven helmholtz fluid oscillator Jet-driven helmholtz fluid oscillator

1976-07-01

1977-08-16

Cline, William R.

Fluid handling

Flow affected by fluid contact, energy field or coanda effect

Device including linearly-aligned power stream emitter and...

137 60A, F15D 108

Patent

active

040419843

ABSTRACT:
A jet-driven Helmholtz fluid oscillator having two openings located coaxially in opposite walls of a chamber. A fluid jet enters through one opening, the inlet, at a constant flow rate and exits through the other opening, the outlet, at a pulsating or oscillating flow rate. The pressure level within the chamber also fluctuates. All critical dimensions of the oscillator are subject to geometrical similarity and scale with the diameter of the inlet. The inlet flow rate is proportional to the Helmholtz frequency of the chamber and the jet length within the chamber. The outlet fluid flow and the chamber pressure oscillate at substantially the same frequency as the Helmholtz frequency.

REFERENCES:
patent: 3398758 (1968-08-01), Unfried
patent: 3432804 (1969-03-01), Becken
patent: 3643431 (1972-02-01), Jamieson
patent: 3651639 (1972-02-01), Black
patent: 3735778 (1973-05-01), Garnier
patent: 3855859 (1974-12-01), Adams

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