VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University332110.18287/2541-7533-2016-15-4-162-173UnknownUnstady heat-mass-transfer and fuel distributions in flows downstream the gas-dynamic flame holderTretyakovV. V.<p><span lang="EN-US">Candidate of Science (Physics and Mathematics)<br />Associate Professor, leading research scientist</span></p>tretjak@ciam.ruSviridenkovA. A.<p><span lang="EN-US">senior research scientist</span></p>sviriden@ciam.ruCentral Institute of Aviation Motors311220161541621731002201710022017Copyright © 2017, VESTNIK of Samara University. Aerospace and Mechanical Engineering2017<p>A model of non-stationary heat and mass transfer of fuel droplets with a swirling air flow is developed. The model includes the definition of the air flow structure, identification of configurations of liquid jets flowing into the air flow, the calculation of characteristics of their breakup taking into account the processes of drop breaking and coalescence, the calculation of droplet and fuel vapor concentration distribution in the work volume. The study was performed as applied to a combustion chamber with a front gas-dynamic flame holder. The optimal combination of major gas-dynamic parameters that determine the mode of operation of the device in question the value of the air flow swirl and the intensity of the air traverse feed through the flame holder is determined. The flow structure and the distribution of liquid-droplet and vaporous fuel concentrations downstream the flame holder are specified for this combination. The calculation results are compared with the experimental data.</p>Combustion chambernumerical simulationswirl atomizationair-fuel mixtureГазотурбинный двигателькамера сгораниячисленное моделированиераспыливаниетопливовоздушная смесь[1. Tretiyakov V.V., Sviridenkov A.A. The mixing efficiency of liquid droplet fuel and air flow in the frontal swirl devices. Vestnik of the Samara State Aerospace University. 2009. No. 3(19), part 2. P. 162-170. (In Russ.)][2. Tretyakov V.V., Sviridenkov A.A. Development of a generalized model of heat-mass transfer between fuel drops and gas stream with reference to gas turbine engine combustion chambers. Vestnik of the Samara State Aerospace University. 2013. No. 3 (41), part 1. P. 248-254. (In Russ.)][3. Sviridenkov A.A., Tretyakov V.V. Raschetno-eksperimental'noe issledovanie raspylivaniya topliva i smeseobrazovaniya v potoke za gazodinamicheskim stabilizatorom. Trudy Shestoy Rossiyskoy natsional'noy konferentsii po teploobmenu. Moscow: Izdatel'skiy Dom MEI Publ., 2014.][4. Sviridenkov A.A., Tretyakov V.V. Simulation of drop coagulations in swirled time dependent streams with reference to gas turbine engine combustion chambers. Vestnik of the Samara State Aerospace University. 2013. No. 3(41), part 1. P. 230-234. (In Russ.)][5. Sallam K.A., Aalburg C., Faeth G.M. Breakup of Round Nonturbulent Liquid Jets in Gaseous Crossflow. AIAA Journal. 2004. V. 42, Iss. 2. P. 2529-2540. DOI: <a href='http://doi.org/10.2514/1.3749'>10.2514/1.3749</a>][6. Reitz R.D. Modeling atomization processes in high-pressure vaporizing sprays. Atomization and Spray Technology. 1987. Iss. 3. P. 309-337.][7. O'Rourke P.J., Amsden A.A. The TAB method for numerical calculation of spray droplet breakup. SAE Technical Paper Series. 1987. DOI: <a href='http://doi.org/10.4271/872089'>10.4271/872089</a>][8. Tret′yakov V.V. Calculation of fuel distribution in the combustion chamber front device equipped with a three-stage swirler. Russian Aeronautics. 2007. V. 50, Iss. 4. P. 395-401. DOI: <a href='http://doi.org/10.3103/S1068799807040095'>10.3103/S1068799807040095</a>][9. Tretiyakov V.V. Distribution calculation of dropwise-liquid and vaporous fuel combustion chamber spray-type component. Vestnik of the Samara State Aerospace University. 2006. No. 2 (10), part 2. P. 136-142. (In Russ.)][10. Tret'yakov V.V., Mironov A.K., Maslov V.P. Experimental Verification of the Methods of Calculation of a Flow and Mixing of a Gaseous Fuel behind a Swirling Frontal Module. Heat Transfer Research. 2010. V. 41, Iss. 4. Р. 425-444. DOI: <a href='http://doi.org/10.1615/heattransres.v41.i4.60'>10.1615/heattransres.v41.i4.60</a>][11. Boysan F., Ayers W.H., Swithenbank F., Pan Z. Three-dimensional Model of Spray Combustion in Gas Turbine Combustors. 19th Aerospace Sciences Meeting. 1981. DOI: <a href='http://doi.org/10.2514/6.1981-324'>10.2514/6.1981-324</a>]