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Database and Numerical Procedures for Extending the Spectral Range of Plume Signature Codes

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0147-18-C-7318
Agency Tracking Number: B2-2556
Amount: $1,497,943.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: MDA16-004
Solicitation Number: 16.2
Solicitation Year: 2016
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-05-04
Award End Date (Contract End Date): 2022-07-08
Small Business Information
4 Fourth Avenue
Burlington, MA 01803
United States
DUNS: 047627732
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Matthew Braunstein
 Principal Scientist
 (781) 273-4770
Business Contact
 Marsha J. Fox
Phone: (781) 273-4770
Research Institution

Over many data collection campaigns, a large number of propulsion related signature events have been observed across an extended range of the electromagnetic spectrum. The current suite of plume modeling tools contains the basic framework for flowfield and signature generation, but lacks the underlying physical mechanisms and supporting property databases to properly account for alternate waveband regions. Recent efforts by Spectral Sciences, Inc. (SSI) used innovative computational chemistry techniques and laboratory data to generate a database of chemical rates among ro-vibrational state specific levels to extend the wavelength range of signature codes. The present approach develops and tests innovative procedures to compress the number of database states and rates, making routine applications possible. Phase I demonstrated the approach with simple single-cell / single species models and with full plume flowfield and signature calculations of field data using a detailed chemical kinetic mechanism. Phases II/III will upgrade plume signature codes to include additional gas and condensed phase (particulate) signature mechanisms and radiation transport methods for creating signatures from output flowfields. A major task in Phase II will be validation against field data. Approved for Public Release | 18-MDA-9522 (23 Feb 18)

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