Geophysical and Astrophysical Simulations in QuickField

Webinar recorded on February 24, 2011.

Dr. James Claycomb who recently spoke about Biophysical Simulations using QuickField, will continue his series of presentations by this new webinar about geophysical and astrophysical simulations in QuickField.

Topics include the simulation of heat transfer in the Earth's mantle, crust and near hydrothermal vents. Astrophysical magnetic sources are simulated including geomagnetic field sources, the Jovian magnetic field and its interaction with Europa. Tidal stresses are simulated including the stress distribution in the ice sheet of Europa due to tidal interaction with Jupiter.

• Read presentation (in PDF format).
• Watch recorded webinar parts:
  
  Introduction
  
  1. Modeling the geomagnetic field
  
  2. Magnetotellurics. Induced currents in the earth crust
  
  3. Electromagnetic well logging simulation
  
  4. Deep see hydrothermal vents
  
  5. Stress in Europa's ice sheet due to tidal interactions with Jupiter
  
  6. Induction of currents in Europa's ocean by Jupiter's magnetic field
  
  7. Thermal conduction in spherical bodies
  
• Watch on YouTube:
  Part 1. Contents. Geomagnetic field simulation formulated as a DC Magnetics with axial symmetry. Geometry sketch, modeling Earth in geometry definition and properties description in QuickField. Permeability, current density, field source, coercive force of a magnet. Boundary conditions. Finite elements mesh. Results of the earth magnetic field simulation. Flux density, contour plots. Currents flowing in the mantle. Effect of the property changes to the resulting field picture.
  Part 2. Magnetotellurics simulation as AC magnetics with x-y symmetry. Induction of currents in the Earth's crust. Properties: frequency, permeability, tangential field. Magnetic field picture. Current density in crust depth plot. Electromagnetic well logging simulation in AC magnetics. Drilling holes and looking for hydrocarbons. Model and its properties. Sources and boundaries. Measuring the current density with LabelMover parametric analysis. Setting parameters of automation and plotting results. Total magnetic flux. Coils configuration adjustment, scanning for different frequencies, looking for maximum response for the given design.
  Part 3. Temperature distribution surrounding the deep-sea hydrothermal vents in steady state heat transfer simulation. Model and properties. Results, contour map of temperature. Plots, vector of heat flux.
  Part 4. Stress analysis in Europa's ice sheet due to tidal interactions with Jupiter. Background information for the problem. Properties and boundary conditions in QuickField simulation. Stress distribution. Stress components in plots.
  Part 5. Induction of currents in Europa's ocean by Jupiter's B-field. AC magnetics. Peak values of current density, analysis of data. Thermal conduction in spherical bodies. Simple geometry to save computational power and reduce number of finite elements nodes. Steady state heat transfer. Radiation boundary condition. Examining the solution. Temperature profile and plots. Additional examples in textbooks by Dr. James Claycomb.
• Download simulation examples:
  Electromagnetic well logging