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Victor,If you wish some comments, you need to describe your invention HERE, so that people can discuss the advantages/disadvantages of your ideas.
I don't see any difference between your "invention", and using an elbow in a pipe, except you likely create a little turbulence at the point of the hole in the side of the pipe. Are you indicating the effect on two gasses?The main force of rocket propulsion would be on the entire engine bell, and not just a portion of the chamber.
I'm not sure whether you have invented the flute, the trombone, or a tube with a hole in it. Damn clever, anyway, and only a few thousand years too late for a patent.
Can we see a diagram showing the air flows?
What you need is some actual data and tests to demonstrate that your hole in the wall system has less flow restrictions than using a sweeping elbow, or for that matter, flexible tubing.[attachment=18415]Flow and resistance is also based on pipe size. So, the easiest way to increase flow and reduce resistance may be to increase the pipe size.You would need to come up with accurate tests, for example comparing flow of air through the pipe of a straight pipe vs sweeping elbow (or sweeping curve in flexible tubing) vs your plugged pipe with a hole in the side.I'm seeing some wind speed meters on E-Bay that aren't very expensive. It may not give you CFM's, but it may be accurate enough for your needs. Your device is only better than a sweeping elbow if you can prove that it is. If you are talking about aerospace applications, then both weight and dependability is critical. The use of flexible tubing may allow one to produce sweeping curves, as well as minimize the length of tubing required (which will reduce flow resistance). However, say you get 1% better flow than using a sweeping elbow. Would you save weight over using a 1% oversized pipe? Still you would need the data to prove the benefit of your system.
Diverting air like that produces an area of higher pressure, that pressure will induce the exact same force as the pump creates.
As I thought, this appears to be about the Coanda effect.http://www.freepatentsonline.com/7000640.html describes it very well, with good images.