Images of rods in two layer soil
Images of rods in two layer soil
(OP)
i am having a little difficulty tracking images in two layer soil, when the field point is above the earths surface and the source segment is either in the top or lower layer of the two layer soil model.
i am trying to calcuate the potential on the earth's surface due to a rod(horizontal or vertical) in the lower or upper layer of the soil. I know where the images are when the field segment is either in the upper or lower layer of the soil.
any kind of help will be greatly appreciated ziax@tstt.net.tt
its a simple problem
i am trying to calcuate the potential on the earth's surface due to a rod(horizontal or vertical) in the lower or upper layer of the soil. I know where the images are when the field segment is either in the upper or lower layer of the soil.
any kind of help will be greatly appreciated ziax@tstt.net.tt
its a simple problem






RE: Images of rods in two layer soil
RE: Images of rods in two layer soil
[1] and [3] both give the locations of the images but the, seem to be contradictory, at least from my point of view
[1] Heppe R.J., 1979, Computation of potential at surface above an energized grid or other electrode, allowing for non-uniform current distribution", IEEE Trans. on Power App. and Sys., 98, 1978-88.
[2] Chow, Elsherbiny, Salama, "Surface voltages and resistance of grounding systems of grid and rods in two-layer earth by rapid Galerkin's moment method", IEEE Trans. on Power Delivery, Vol. 12, No. 1, January 1997, pages 179-185
RE: Images of rods in two layer soil
Is programming of mathematical relationships being used or how results are obtained?
Appendix includes the statement:
"..if we derive a general formula for the voltage produced by line source, and always remember to apply it twice, once with the z coordinate of the source and once with the z coordinate of the image. ...."
RE: Images of rods in two layer soil
my problem is the theory , the appendix of [1] gives the location of the images when the field segment/point is in the soil. I understand that situation.
ok this is the question
Is the system of images the same whether or not the field segment/point lies in the soil or air???