+ Visit NASA.gov + Contact NASA   + Home Collection > NASA  Author > Baker, A. J.  Author > Rogers, R. C.  Author > Zelazny, S. W.  NASA Center > Langley Research Center  Publication Year > 1971-1980 > 1975  Subject > A-C > Aerodynamics  Availability Options > Online > PDF  Item/Media Type > Conference Paper  Note: Start a new navigation search by selecting a link above     Previous Record | Next Record + Back to Results   + Printer Friendly Title: Analytical study of mixing and reacting three-dimensional supersonic combustor flow fields Author(s): Baker, A. J.; Rogers, R. C.; Zelazny, S. W. Abstract: An analytical investigation is presented of mixing and reacting hydrogen jets injected from multiple orifices transverse and parallel to a supersonic airstream. The COMOC computer program, based upon a finite-element solution algorithm, was developed to solve the governing equations for three-dimensional, turbulent, reacting, boundary-region, and confined flow fields. The computational results provide a three-dimensional description of the velocity, temperature, and species-concentration fields downstream of hydrogen injection. Detailed comparisons between cold-flow data and results of the computational analysis have established validity of the turbulent-mixing model based on the elementary mixing-length hypothesis. A method is established to initiate computations for reacting flow fields based upon cold-flow correlations and the appropriate experimental parameters of Mach number, injector spacing, and pressure ratio. Key analytical observations on mixing and combustion efficiency for reacting flows are presented and discussed. NASA Center: Langley Research Center Publication Date: JAN 1, 1975 Document Source: CASI Online Source: View PDF File Document ID: 19760002928 Accession ID: 76N10016 Publication Information: Aerodynamic Analyses Requiring Advanced Computers, Pt. 1, p 251-315, Number of Pages = 65 Contract-Grant-Task Number: NAS1-11214 Price Code: A04 Keywords: SUPERSONIC COMBUSTION RAMJET ENGINES; SUPERSONIC JET FLOW; TURBULENT MIXING; COLD FLOW TESTS; FLOW DISTRIBUTION; MIXING LENGTH FLOW THEORY; PREDICTION ANALYSIS TECHNIQUES; ROCKET ENGINE DESIGN; THREE DIMENSIONAL FLOW; Notes: In its Aerodynamic Analyses Requiring Advanced Computers, Pt. 1 p 251-315 (SEE N76-10007 01-02) Accessibility: Unclassified; No Copyright; Unlimited; Publicly available; Updated/Added to NTRS: 2008-11-10 + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007