Turbulence in the Stable Planetary Boundary Layer and Aloft: Modeling and Characterization Using DNS and LES
Abstract
During the last 12 months we have conducted focused analysis of our DNS solutions, explored new gravity-wave breaking simulations (including quantifying the turbulent Prandtl number), evaluated the numerics used in our LES code, conducted new work on optimal perturbation of stratified shear flows, extended verification comparisons between our DNS solutions and recent aircraft measurements (an found excellent agreement), and developed a Bayesian hierarchical methodology for deducing unresolved turbulent motions in mesoscale model simulations of stratified flows. In addition we also helped write a successful DoD HPCMO proposal for challenge status for the computer work associated with this project and a successful DOD Golden Opportunity Capability Applications Projects (CAP) proposal that will provide an additional 1 to 2 million hours of computer time on newly delivered MPP systems before they are made generally available to DoD users. The CAP program benefits the DoD HPCMO by having new systems rigorously tested by experienced users.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 15, 2004
- Accession Number
- ADA432709
Entities
People
- Joseph Werne
Organizations
- Northwest Research Associates