Accession Number:

ADA278779

Title:

Turbulent Chemistry Modeling Program. Volume 2. Nuclear Dust Cloud Radioactive Microphysics Sensitivity Studies

Descriptive Note:

Technical rept. 1 Aug 1991-16 Dec 1992

Corporate Author:

TITAN CORP CHATSWORTH CA

Personal Author(s):

• Hookham, Philip A.
• Hatfield, Douglas W.
• Schlamp, Richard J.
• Hassig, Paul J.
• Rosenblatt, Martin

Report Date:

1994-04-01

Pagination or Media Count:

32.0

Abstract:

A two-or three-dimensional compressible, Reynolds-averaged, Navier- Stokes hydrocode using adaptive zoning and finite-volume TVD differencing called MAZ for Multiphase Adaptive Zoning was used to simulate the formation of radioactive nuclear dust clouds. A series of sensitivity studies examining the effect of changes in particle agglomeration and radioactive vapor condensation models on the activity particle size distribution APSD were performed. In addition, a model which accounts for the effect of turbulent fluctuations on the radioactive vapor condensation process was implemented and tested. Accounting for agglomeration of wet particles was found to have the single largest effect on APSD. Microphysics, Nuclear dust cloud, Radioactivity, Numerical simulation, Turbulence model.

Descriptors:

• *MODELS
• *TURBULENCE
• *SENSITIVITY
• *CHEMISTRY
• *RADIOACTIVITY
• *DUST CLOUDS
• *NUCLEAR CLOUDS
• SIMULATION
• CLOUDS
• PARTICLE SIZE
• VOLUME
• VAPORS
• THREE DIMENSIONAL
• COMPRESSIBLE FLOW
• PHYSICS
• NAVIER STOKES EQUATIONS
• REYNOLDS NUMBER
• CONDENSATION

Subject Categories:

• Physical Chemistry
• Computer Systems
• Radioactivity, Radioactive Wastes and Fission Products
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE