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On May 20, 6:54*pm, tom wrote:
On 5/19/2010 11:45 PM, Art Unwin wrote: Wow! *I'd really like to see this vortex, sorry these vortices, that you have produced. Is the rotation right or left handed? This is REALLY COOL! Please post the file and which optimizer software that you are using. Thanks! tom K0TAR The presence of these vortices are used to determine imperfections in materials during manufacturing processes. Removing the presence of such is the primary reason for laminations instead of solids in the manufacture of transformers.I am surprised that you are not familiar with the concept of skin depth when at the same time you consider yourself as an expert with respect to antennas. The antenna program I use is AO Pro purely because it has an optimizer to ensure Maxwell's equations are adhered to as well as accountability for all vectors involved. Planar devices are quite efficient such as the Yagi but planar devices are not in equilibrium which is a requirement of Maxwell's equations! I imagine that with any program you could fiddle with a dipole construction such that it was resonant at a very low impedance to obtain a progression for radiation pattern /volume versus impedance if it does not posses optimization abilities. The free EZNEC program probably will be good enough. As far as vortices are concerned the same two vectors used with antennas are also evident with the Earth's weather system. For instance, a tornado or a whirlpool presents a vortice by virtue of the intersection of two vectors involved. Remove one intersecting vector and the vortice disappears. This is an example of what Einstein saw with respect to his leanings on the unified theory. Oh that's right, I forgot. *You use my god child. *I asked Brian to do that program for 2 or 3 years before he finally did. *I was the alpha tester on it and other of his programs. You do know that's just MiniNEC, right? *With all the problems MiniNEC has included for your computing pleasure. It's off frequency - low. *And it gets worse as the wire diameter INCREASES. *Which is what you are doing in your example. It also doesn't like bent wires, as in things that don't meet at 180 degrees. *It breaks down completely at less than 28 degrees. It doesn't like adjacent segments that are in a ratio greater than 2 to 1.. And it doesn't like adjacent wires that are closer than .23 of a segment length. Given some of the things you have posted that you have modeled, I'd guess that you break a minimum of 1, normally 2, and sometimes 3 of the above conditions. No wonder your stuff acts abnormal. And you are using this tool to attempt to prove your twisted theories about Maxwell's equations? *That's like using a chain saw to do brain surgery. tom K0TAR All very interesting Tom but frankly you lack credibility. As with other posts of yours you do not provide specifics and more than often express opinions. I personally am as pleased as punch in what I purchased from Brian and I certainly do not believe he would foist on the ham community anything but his best. Knowing that he is not exactly a peoples person I suspect he would not shy from a clash with you when you distribute your personal opinions. So I can imagine why such a person like you would jump at the chance to savage another's personality. For my part I use the program strictly for his adherence to Maxwell's equations which is the approach that I take. This allows for an over check most times when ensuring that arrays proffered meet the condition of equilibrium of each part and all of the provided array. I doubt very much you would have strayed beyond the Yagi and other planar designs when testing, but then you are not short of claiming anything that may boost your position in life. Thanks for your operative points offered and I will certainly consider them within the specific technical confines which you so gently provided. Regards Art |
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