EXHAUST PLUME AND SIGNATURES

The 36th JANNAF Exhaust Plume and Signatures Subcommittee meeting will include sessions on the phenomena associated with the exhaust from rockets, ramjets, space, and gun propulsion systems. These phenomena can be divided into three technical areas: plume flowfields, plume radiation, and a broad area incorporating other plume effects.

In addition, the EPSS Signatures panel (formerly the Spectral and In-band Radiometric Imaging of Targets and Scenes (SPIRITS) Users Group) promotes technical interchange among members of the Electro-Optical/Infrared (EO/IR) aircraft signature community from both government and industry.

EPSS Mission Areas

Areas of interest included in the Call for Papers are:


Mission Area I: Exhaust Plume Flow Field Analysis

Chair:
Dr. Kevin D. Kennedy, Army AMRDEC / Redstone Arsenal, AL
Telephone:  (256) 876-7278

Email:          kevin.d.kennedy14.civ@mail.mil

Papers submitted should be concerned with basic definitions of nozzle and exhaust plume flow fields. Solid and liquid rocket and ramjet plumes will be considered. Plume flow fields at all altitudes are important. Some typical problem areas relating to low/mid-altitude exhaust plumes include external aerodynamic-plume interaction, combustion, turbulent mixing and afterburning, two-phase flow, multi-engine base flow, radiant heating, and oxidizer/fuel gradients. High altitude vacuum plume problems include noncontinuum flow, nozzle boundary layer expansion, and condensation.


Mission Area II: Exhaust Plume Radiation

Chair:
Mr. Jonathan Mautz, NASIC / WPAFB, OH
Telephone:  (937) 522-6238
Email:          jonathan.mautz@us.af.mil

Papers are solicited which describe or highlight the following: recent achievements in the exhaust plume radiation area; plume radiation related to the generation of vehicle design environments; detection, surveillance, and identification; advancement of theoretical prediction methods; experimental techniques; results of ground and flight measurements; interpretation and correlation of data; any portion of the radiation spectrum from ultraviolet through longwave infrared; propulsion systems of all types in terms of thrust level, propellant used, and application, as well as operating altitude; the effects of atmospheric species reacting with the exhaust species or absorbed and emitted energy from exhaust plumes; and plumes in vacuum.


Mission Area III: Exhaust Plume Effects

Chair:
Dr. Forrest E. Lumpkin, NASA-JSC / Houston, TX
Telephone:  (281) 483-2955
Email:          forrest.e.lumpkin@nasa.gov

Theoretical and experimental papers concerning the prediction of plume impingement pressures and heating for low altitude and/or high altitude spacecraft vehicle applications are solicited. Papers treating the generation of plume contaminants and the effects of such contamination on vehicle surface are of interest. Also of interest are papers concerned with high altitude base convective heating resulting from multi-engine plume interactions.


Mission Area IV: Other Exhaust Plume Related Problems

Chair:
Dr. Milton E. Vaughn, AMRDEC / Redstone Arsenal, AL
Telephone:  (256) 876-3726
Email:          milton.e.vaughn.civ@mail.mil

Other papers dealing with exhaust plume technology not covered by the above areas are invited.


Mission Area V: Signatures and Spectral and In-band Radiometric Imaging of Targets and Scenes (SPIRITS)

Chair:
Ms. Robin L. Miller, NAWCWD / Point Mugu, CA
Telephone:  (805) 989-4894
Email:          robin.miller@navy.mil

Papers are solicited for the following topics related to Signatures: EO/IR target signature phenomenology; EO/IR atmospheric transmission/radiation phenomenology and modeling; EO/IR signature target measurements; SPIRITS and other signature codes development and improvement; validation and calibration of SPIRITS and other signature codes target modules; computational fluid dynamic analysis and modeling for exhaust and related flowfields; exhaust plume radiation; applications of SPIRITS and other signature codes data for acquisition programs, signature reduction, and operational warfighting.

Instructional Tutorial(s) are solicited. Back by popular demand, these instructional tutorials provide the opportunity for each community member to obtain an advanced technical understanding of the inner mechanics of SPIRITS and other signature codes from experts in the field. Each tutorial should be related to a topic listed in paragraph 1. Tutorials should focus on a specific phenomenon or algorithm, provide clear technical instruction, be informative, and carry an academic tone. Tutorials should be limited to two hours or less. Please communicate your interest.


Exhaust Plume and Signatures Subcommittee Chair

Dr. Milton E. Vaughn, AMRDEC / Redstone Arsenal, AL
Telephone:  (256) 876-3726
Email:          milton.e.vaughn.civ@mail.mil

Exhaust Plume and Signatures Subcommittee Deputy Chair

Dr. Manish Mehta, NASA-MSFC / Huntsville, AL
Telephone:  (256) 544-0076
Email:          manish.mehta@nasa.gov

JHU WSE ERG Technical Representative

Mr. Nicholas Keim, JHU WSE Energetics Research Group / Columbia, MD
Telephone:  (443) 718-5005
E-Mail:         nkeim@erg.jhu.edu