Coupled Multi-physics Analysis and Design Optimization of nozzles (COMANDO) Navy STTR FY2014.A Sol No.: Navy STTR FY2014.A Topic No.: N14A-T005 Topic Title: Coupled Multi-physics Analysis and Design Optimization of nozzles (COMANDO) Proposal No.: N14A-005-0318 Firm: Intelligent Automation, Inc. 15400 Calhoun Drive Suite 400 Rockville, Maryland 20855-2737 Contact: Nikhil Nigam Phone: (301) 294-4255 Web Site: www.i-a-i.com Abstract: The US Navy faces daunting energy challenges that will further increase in severity, given the ever-increasing global demand for energy, diminishing energy supplies and demand for enhanced environmental stewardship. Navy's environment foot print consists of both emissions and noise generated every day around the world. Additionally, noise is an important issue for the Navy due to the adverse effect it has on personnel and communities around naval air bases and training sites. Noise abatement technologies have received a boost in the commercial sector due to strict regulations and relatively smaller thrust demands placed on aircraft fleet. However military combat aircraft are designed to use high thrust engines with low bypass ratios and afterburners. All these factors lead to greater pressure mismatch at the exit of exhaust nozzles that accelerate noise generation. This scenario provides an exciting opportunity to streamline the nozzle design and attain the goals of improving efficiency and reducing noise simultaneously. For this purpose, IAI proposes to develop COMANDO, a tool for high-fidelity multi-physics based analysis and design optimization framework for advanced exhaust systems. COMANDO combines state of the art nozzle flow modeling techniques and multi-disciplinary optimization under a high performance computing environment to analyze design advanced nozzles. Benefits: The end product of this effort would be a nozzle analysis and design tool that would be extremely useful to the DoD, aircraft industry and academia alike. The tool would allow researchers the ability to make crucial design modifications early on in the design phase. By capturing physics based interactions among the various design fields the tool provides a high fidelity solution to the design problem. Many of the techniques developed in this effort will also be applicable to other domains, such as aircraft design and control. Moreover, the tool itself could become a part of conceptual or preliminary design process with some enhancements. Some of our collaborators have already expressed interest in trying this new technology for their in-house applications, and if successful, COMANDO could become an integral part of the test/design process for several aircraft manufacturers. Since this is a stand-alone, low-computational requirement tool, it should be readily adopted by the academia as well. Return