Accession Number:

ADA556207

Title:

CHMWTR: A Plasma Chemistry Code for Water Vapor

Descriptive Note:

Interim rept. Jun 2010-Oct 2011

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC BEAM PHYSICS BRANCH

Personal Author(s):

• Gordon, Daniel F.
• Helle, Michael H.
• Jones, Theodore G.
• Fung, K.

Report Date:

2012-02-01

Pagination or Media Count:

21.0

Abstract:

The CHMWTR code tracks the evolution of 21 ionic and neutral species in a water vapor plasma excited by a slowly varying electric field. This report discusses the physics of water vapor breakdown and describes the assumptions and methods used in developing the code. The code results are used to determine the breakdown field in water vapor under typical conditions. The conductivity of the plasma is also computed. Since this is an interim report, it concludes with task areas for further study and development.

Descriptors:

• *ELECTRIC DISCHARGES
• *PLASMAS(PHYSICS)
• *WATER VAPOR
• BREAKDOWN(ELECTRONIC THRESHOLD)
• CONDUCTIVITY
• DIFFERENTIAL EQUATIONS
• GAS BREAKDOWN
• IONIZATION
• MATHEMATICAL MODELS

Subject Categories:

• Test Facilities, Equipment and Methods
• Electricity and Magnetism
• Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE