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A system for generating swirl includes a pipe and at least two orifice plates located within a section of the pipe and defining a swirl generation area. Each orifice plate has an off-set orifice or hole and is configured to have a position that is adjustable within the swirl generation area. Each or

A system for generating swirl includes a pipe and at least two orifice plates located within a section of the pipe and defining a swirl generation area. Each orifice plate has an off-set orifice or hole and is configured to have a position that is adjustable within the swirl generation area. Each orifice plate may be oriented at an angle variable to each other to generate a variable degree of swirl as fluid flow exits the swirl generation area.

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1. A system for generating swirl, comprising: a pipe;at least two circular orifice plates located perpendicular to a longitudinal axis of the pipe and defining a swirl generation area, each orifice plate comprising an off-set orifice or hole and being configured to have a position that is adjustable

1. A system for generating swirl, comprising: a pipe;at least two circular orifice plates located perpendicular to a longitudinal axis of the pipe and defining a swirl generation area, each orifice plate comprising an off-set orifice or hole and being configured to have a position that is adjustable within the swirl generation area, anda directional baffle connected to one orifice plate and extending into the swirl generation area,wherein each orifice plate is oriented at an angle variable to each other to generate a variable degree of swirl as fluid flow exits the swirl generation area. 2. The system according to claim 1, wherein the off-set orifice or hole has a diameter in a range of approximately 30 to 50% of an inner pipe diameter. 3. The system according to claim 1, wherein the at least two orifice plates each further comprise a handle, said off-set orifice or hole being off-center on a face on the orifice plate toward the handle. 4. The system according to claim 1, wherein the at least two orifice plates each further comprise a handle, said off-set orifice or hole being off-center on a face on the orifice plate away from the handle. 5. The system according to claim 1, wherein the at least two orifice plates are spaced about 2.5 D to about 5 D apart, wherein D is a diameter of the pipe. 6. The system according to claim 1, comprising a plurality of orifice plates. 7. The system according to claim 1, wherein at least one of a pipe inlet section, a pipe outlet section, or the swirl generation area has a diameter of about 2 to about 40 inches. 8. The system according to claim 1, wherein the directional baffle comprises one or more flat plates. 9. The system according to claim 8, wherein one flat plate extends along a length of another flat plate. 10. The system according to claim 8, wherein the directional baffle comprises two flat plates. 11. The system according to claim 1, wherein the directional baffle extends from an upstream orifice plate into the swirl generation area. 12. The system according to claim 1, wherein the off-set orifice or hole is on a face of the orifice plate. 13. The system according to claim 1, wherein the off-set orifice or hole is tangent to an inside wall of the pipe. 14. A method for generating swirl in a flow, comprising: providing a system according to claim 1;material flow entering through a pipe inlet section, passing through the swirl generation area, exiting the swirl generation area, and entering a pipe outlet section;generating swirl in the material flow by positioning the at least two orifice plates at a variable angle of orientation relative to each other. 15. The method according to claim 14, wherein the at least two orifice plates are rotated from 0 to 90 degrees relative to an initial starting location. 16. The method according to claim 14, wherein the at least two orifice plates each further comprise a handle, said off-set orifice or hole being off-center on a face on the orifice plate toward the handle. 17. The method according to claim 14, wherein the at least two orifice plates each further comprise a handle, said off-set orifice or hole being off-center on a face on the orifice plate away from the handle. 18. The method according to claim 14, wherein the at least two orifice plates are spaced about 2.5 D to about 5 D apart, wherein D is a pipe diameter. 19. The method according to claim 14, wherein the off-set orifice or hole has a diameter in a range of approximately 30-50% of an inner pipe diameter. 20. The method according to claim 14, wherein the swirl-generated flow has a direction of flow deflected by about 5 to about 45 degrees from an initial direction of flow prior to passing through the swirl generation area.