COMPUTED ELECTRON DRIFT VELOCITY IN MOIST AIR
Abstract
The free electron drift velocity in air and water vapor mixtures is calculated using the 'average electron' method. The results indicate that the electron mobility is decreased by addition of water vapor for small electric fields, and increased by additon of water vapor for large electric fields. For still larger electric fields, the change caused by addition of water vapor dwindles. The mobility increases by as much as 43 percent for 6 percent water vapor content, occurring for an E/p near 2.5; the 'crossover' occurs at an E/p of 1.04 for 6 percent water vapor content. The maximum increase is less for smaller water vapor contents and then occurs at lower electric field strengths.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1967
- Accession Number
- AD0651270
Entities
People
- William T. Wyatt Jr.
Organizations
- United States Army Engineer Research and Development Laboratory