Random Walk Solution to the Spherical Continuum Electrostatic Probe Problem.
Abstract
The Monte Carlo random walk numerical technique is developed and applied to the spherical continuum electrostatic probe equations. Random walk theory is treated in detail and its advantages and restrictions are presented. Emphasis is placed upon the algorithm for solution to second order ordinary differential equations. Continuum probe theory is reviewed and a new set of boundary conditions for electron and ion densities at the probe surface is presented. The momentum transport equations are reduced to second order to allow a random walk solution and to delete the explicit appearance of the electron and ion currents. Internal plasma profiles for electron and ion densities and for the voltage, parameterized current-voltage data, and values of current as a function of plasma properties, are presented for the case of equal electron and ion temperatures.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 06, 1974
- Accession Number
- ADA005286
Entities
People
- Kenneth A. Dreyer
Organizations
- Air Force Institute of Technology