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Title: Turbulent combustion flow through variable cross section channel

The object of this study is to develop a new evolutionary numerical method for solving direct task of Laval nozzle, which provides non-iterative calculations of chemical reacting turbulent flows with detailed kinetic chemistry. The numerical scheme of fourth order along the normal coordinate and second order along the streamwise one is derived for calculation of difference-differential equations of the second order and the first order. Marching method provides the possibility of computing field flow in subsonic section of nozzle and near an expansion. Critical mass consumption is calculated with controlled accuracy. After critical cross section of nozzle a combined marching method with global iterations over axial pressure (only) makes it possible to overcome ill posedness of mixed supersonic flow and calculate the whole flow field near and after critical cross section. Numerical results are demonstrated on turbulent burning hydrogen-oxygen flow through Laval nozzle with curvature of wall K{sub w} = 0.5.
Authors:
;
Publication Date:
OSTI Identifier:
20019082
Resource Type:
Conference
Resource Relation:
Conference: 5th ASME/JSME Thermal Engineering Joint Conference, San Diego, CA (US), 03/14/1999--03/19/1999; Other Information: 1 CD-ROM. Operating Systems required: Windows i386, i486, Pentium Pro, MS Windows 3.1, 95, or NT3.51, 8MB Ram, MacIntosh and Power MacIntosh with a 68020 or greater processor, System software version 7.1, 3.5 MB RAM (5 MB for PowerMac), 6 MB available hard-disk space, Unix; PBD: 1999; Related Information: In: Proceedings of the 5th ASME/JSME thermal engineering joint conference, [3600] pages.
Publisher:
American Society of Mechanical Engineers, New York, NY (US)
Research Org:
Russian Academy of Science, Inst. for High Temperatures, Moscow (RU)
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 08 HYDROGEN; RAMJET ENGINES; HYDROGEN FUELS; MATHEMATICAL MODELS; COMBUSTION KINETICS; TURBULENT FLOW; NOZZLES; FLUID FLOW