The RNTS focuses on the application of advanced composite materials, including carbon-carbon, ceramic matrix, and carbon phenolic composites, and other advanced materials, as applied to solid rocket nozzles and their components, nozzle-based propulsion control systems; and related technology developments for liquid and electric propulsion.

The 34th Rocket Nozzle Technology Subcommittee sessions will focus on materials, processing, testing, evaluation, design, analysis, and other topics of interest in the rocket nozzle technology area. Additional information concerning these areas or the topics being solicited should be directed to the appropriate Area Chair. Papers are sought in the specific areas listed below.

Open Mission Area: RNTS is interested in exploring new areas and for this call, abstracts that do not align with any of the below Mission Areas will be considered for inclusion in this meeting, or for discussion by the Technical Steering Group.

RNTS Mission Areas

Areas of interest included in the Call for Papers are:

Mission Area I: Nozzle Thermal, Structural, Fluids Analysis and Modeling

Dr. Heath T. Martin, NASA Marshall Space Flight Center / Huntsville, AL
Telephone:  (256) 544-5993

Suggested topics for papers in this session include:

  • Advances in modeling of ablation and erosion of nozzle composite materials
  • Advances in CFD modeling of heat and mass transfer processes in rocket nozzles
  • Advances in structural composite materials modeling and failure criteria
  • Coupled thermo-structural modeling of heated composites using explicit methods
  • Coupled fluid-thermal surface ablation modeling with two-phase surface interaction
  • Porous media, pyrolysis gas, and pore pressure modeling
  • Semi-empirical laboratory methods used for gathering of heated composite property data

Mission Area II: Nozzle Design, Test and Evaluation

Mr. Clyde E. Carr, Jr., Northrop Grumman Corporation / Elkton, MD
Telephone:  (410) 392-1877

Nozzle design, test, and evaluation areas of interest include:
  • Evaluation - Health monitoring for material aging and material characterization
  • Nozzle Design ‘lessons learned’
  • Test - performance based acceptance testing and new or improved test methods
  • Post-Test Evaluation - comparison of test results to predictive methodologies and tools (e.g. SPP)
  • New materials characterization and fabrication, including constituent/composite material behavior throughout all phases of processing
  • In-process characterization techniques and instrumentation
  • Assessment of the state-of-the-art, vision of the future, and research/development paths is requested

Papers addressing qualitative and quantitative goals relevant to technical and system level challenges are specifically sought. Discussion of new technologies/materials and future expectations is also invited.

Mission Area III: Thrust Control

Mrs. Cheryl R. Steely, DEVCOM Aviation & Missile Center / Redstone Arsenal, AL
Telephone:  (256) 313-1773

Ms. Laina V. Gilmore, Air Force Research Laboratory / Edwards AFB, CA
Telephone:  (661) 275-5224

Specific topics of interest include nozzle designs that use active or passive control to achieve thrust control; weight, volume, size, and cost reduction techniques; component and system modeling and analysis, to include system performance benefits of thrust management control or thrust vector control; control techniques, to include control systems, control algorithms, actuation methods or mechanisms; thrust management control via pulsing, and motor extinguishment and re-ignition; pintle controlled nozzles; VAN (variable area nozzle) designs; nozzle designs that incorporate thrust vector control (exclusive of jet vane systems) as well as thrust level control; developments in jet vane/tab, moveable nozzle, hot gas valve, probe, fluid injection, or any other standard or novel TVC technologies; TVC applications of micro-electromechanical systems (MEMS); and component and system test results.

Mission Area IV: Innovative Nozzle Materials and Manufacturing

Ms. Jennifer I. Richman, DEVCOM Aviation & Missile Center / Redstone Arsenal, AL
Telephone:  (256) 313-3788

Ms. Sarah A. Howse, NASA Marshall Space Flight Center, Huntsville, AL
Telephone:  (256) 544-7418

Specific topics of interest include new/innovative materials addressing the following area(s) for aluminized, reduced-smoke or minimum-smoke solid rocket motors:

  • Lightweight and high temperature capability components
  • Low erosion materials for use as liners or monolithic components
  • Structural insulators
  • Manufacturing techniques
  • Reduced cost for advanced/high temperature materials

This mission area will focus on experimental and modeling studies into damage tolerance, fracture, and/or failure pertaining to non-metallic materials which can be used on space systems such as rocket motors or re-entry vehicles. Examples of areas of research could include investigation into fracture or failure behavior of propellants, liners, insulation, adhesives, nozzle ablative liners, re-entry insulators, etc. Emphasis will be placed on material characterization of flaw behavior and failure initiation and analytical methods used to simulate these behaviors. Areas of study would include propagation, arrest, failure, and fatigue and related topics. Current and historical investigations into anomalies and failures as related to damage tolerance and fracture will also be addressed.

Rocket Nozzle Technology Subcommittee Chair

Dr. Heath T. Martin, NASA Marshall Space Flight Center, Huntsville, AL
Telephone:  (256) 544-5993

Rocket Nozzle Technology Subcommittee Deputy Chair

Dr. Sandra J. Tomczak, Air Force Research Laboratory / Edwards AFB, CA
Telephone:  (661) 275-5171

JHU WSE ERG Technical Representative

Mr. Bryan DeHoff, Aerospace Technical Services / West Chester, OH
Telephone:  (513) 378-7071