Accession Number:

ADA612712

Title:

Enhanced Computational Toolbox Including Multiquantum Vibration-Translation (VT) & Vibration-Electronic (VE) Exchanges, Dissociation and Radiation Effects. Deliverable 4

Descriptive Note:

Final rept. 1 Apr 2010-30 Apr 2011

Corporate Author:

HIGH PERFORMANCE TECHNOLOGIES INC RESTON VA

Personal Author(s):

Report Date:

2011-04-30

Pagination or Media Count:

67.0

Abstract:

This document is the Final Technical Report for the PETTT Special Project BY09-012SP, Enhanced Computational Toolbox Including Multiquantum Vibration-Translation VT Vibration-Electronic VE Exchanges, Dissociation and Radiation Effects. This project involved producing a computational toolbox for implementation of master equation based on detailed state-to-state STS kinetics. A toolbox has been developed to account for Vibration-translation VT, Vibration-Electronic VE, radiative transitions and state specific dissociation, based on nitrogen molecules and atoms. The deliverable is in a modular form which can be interfaced with other related codes at AFRL to improve their prediction capabilities for accurate design and analysis of hypersonic vehicle trajectories. Accurate simulation of space vehicle trajectories requires high fidelity computational tools capable of describing complex multiphysics and nonequilibrium phenomena present in the flow fields especially due to translational, rotational, vibrational, ionization, dissociation, recombination and radiative modes. This toolbox facilitates the users to investigate and identify the dominant physicalchemicalelectronicother mechanisms particular to a problem and rapidly implement and evaluate new models as required. Using operator splitting algorithms, separate code modules for treatment of flow and treatment of STS kinetics were created. The code module for treatment of state-to-state kinetics may also be used as a standalone code for study of spatially homogenous or zero-dimensional flows, for a range of flow parameters. The enhanced toolbox is the primary project deliverable.

Subject Categories:

  • Research and Experimental Aircraft
  • Computer Programming and Software
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE