Deriving Dynamo models from Equations?
I came across your website on the earth’s magnetism when researching around the topic, and your website has helped me with many queries. I am currently in sixth form college and doing a coursework report on geomagnetism. Having written up my report, I found that it lacked physics depth, especially in the form of equations. I wanted to know are there any equations to show simply how fast a dynamo would have to go to create a magnetic flux of the Earth’s? I have come across some detailed equations, involving Lorentz equations, which i found were touching degree level – are there any simplfications? I appreciate any help you can provide. Reply Not knowing what “6th form of College” is or where you are writing from, it is hard to advise you! Presumably, you know about amplification of a magnetic field by stretching of field lines, as described for the Sun in “A Millennium of Geomagnetism.” One of the references there is Roberts, Paul H. and Gary A. Glatzmaier, Geodynamo theory and simulati
