Altitude Compensating Nozzle Design Tool

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNM04AA52C
Agency Tracking Number: 035708
Amount: $69,809.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: A4.01
Solicitation Number: N/A
Small Business Information
4835 University Square, Suite 2, Huntsville, AL, 35816-1845
DUNS: 127963515
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Joseph Szedula
 Principal Investigator
 (256) 489-5832
Business Contact
 David Sisk
Title: Business Official
Phone: (256) 489-5832
Research Institution
Launch vehicle subsystem preliminary design tools that are fast, accurate, and seamlessly integrated into an electronic design and optimization environment have become an essential part of the preliminary design process. A Phase I study is proposed to significantly enhance the capabilities of the existing Aerospike Design and Performance Tool (ADAPT) computer code for use in the design and analysis of launch vehicle concepts employing altitude-compensating nozzles. Proposed Phase I enhancements include: 1) provisions to enable the analysis of user defined nozzle geometry, 2) consideration of base pressure with and without base bleed in the performance calculations, 3) methods to accommodate user defined combustion devise and nozzle efficiencies, and 4) methods to estimate potential side (control) forces resulting from asymmetric throttling of individual thrusters on an aerospike, plug, or plug-cluster engine. The proposed Phase I enhancements fit within a broader and more comprehensive Phase I-II plan. Future (Phase II) enhancements will include: 1) extension of the design and analysis methodology to other altitude compensating nozzle types, 2) modification of ADAPT allowing it to be used as an analysis module within a broader multidisciplinary optimization (MDO) framework, and 3) a web-based user interface.

* Information listed above is at the time of submission. *

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