Cyclonic Vacuum Jet
Posted: Wed Aug 21, 2013 10:12 pm
Hi all,
This is an idea I've been mentally toying with for quite some time; spawned from my experimenting with cyclonic separators with air/water for my job.
For those who are not familiar with 'cyclonic separators', or 'cyclonic dust separators' as they are sometimes referred to: http://www.simerics.com/gallery_cyclone
They are a geometric means of separating materials based on density; I added that link solely because it very clearly shows the flow characteristics. What it doesn't necessary address on that site (a google search will show you anything else you want to know about them), is that there is suction provided at the axial tube opposing the conical exit to induce a cyclone; the tangential inlet is not pressurized but drawn in.
What fascinates me about this relative to a pressure-jet is the fact that the level of vacuum provided at the one outlet is positively correlated with both suction at the tangential inlet and, more significantly, pressure output through the second outlet (converging conic section). If we use the bottom outlet as an venturi ejector for the top, we will be creating an ambient/negative pressure zone in the core, through which new air/fuel is pulled in. The tangential inlet swirls the air/fuel to act as a "spring" so that the path of least resistance will always be out either top or bottom outlet. Any thoughts?
This is an idea I've been mentally toying with for quite some time; spawned from my experimenting with cyclonic separators with air/water for my job.
For those who are not familiar with 'cyclonic separators', or 'cyclonic dust separators' as they are sometimes referred to: http://www.simerics.com/gallery_cyclone
They are a geometric means of separating materials based on density; I added that link solely because it very clearly shows the flow characteristics. What it doesn't necessary address on that site (a google search will show you anything else you want to know about them), is that there is suction provided at the axial tube opposing the conical exit to induce a cyclone; the tangential inlet is not pressurized but drawn in.
What fascinates me about this relative to a pressure-jet is the fact that the level of vacuum provided at the one outlet is positively correlated with both suction at the tangential inlet and, more significantly, pressure output through the second outlet (converging conic section). If we use the bottom outlet as an venturi ejector for the top, we will be creating an ambient/negative pressure zone in the core, through which new air/fuel is pulled in. The tangential inlet swirls the air/fuel to act as a "spring" so that the path of least resistance will always be out either top or bottom outlet. Any thoughts?