Browse > Article
http://dx.doi.org/10.3795/KSME-B.2003.27.9.1273

Study on Vaporization and Combustion of Spray in High Pressure Environment  

Wang, Tae-Joong (한국과학기술원 기계공학과)
Baek, Seung-Wook (한국과학기술원 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.27, no.9, 2003 , pp. 1273-1281 More about this Journal
Abstract
The present study is mainly motivated to investigate the vaporization, auto-ignition, and combustion of liquid fuel spray injected into high pressure environment. The unsteady, multi-dimensional models were used for realistic simulation of spray as well as prediction of accurate ignition delay time. The Separated Flow (SF) model which considers the finite rate of transport between liquid and gas phases was employed to represent the interactions between spray and gas field. Among the SF models, the Discrete Droplet Model (DDM) which simulates the spray using finite number of representative samples of discrete droplets was adopted. The Eulerian-Lagrangian formulation was used to analyze the two-phase interactions. In order to predict an evaporation rate of droplet in high pressure environment, the high pressure vaporization model was applied using thermodynamic equilibrium and phase equilibrium at droplet surface. The high pressure effect as well as high temperature effect was considered in the calculation of liquid and gas properties. In case of vaporization, an interaction between droplets was studied through the simulation of spray. The interaction is shown up differently whether the ambient gas field is at normal pressure or high pressure. Also, the characteristics of spray behavior in high pressure environment were investigated through the comparison with normal ambient pressure case. In both cases, the spray behaviors are simulated through the distributions of temperature and reaction rate in gas field.
Keywords
High Pessure Evaporation Model; Spray Combustion; Auto-Ignition;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Westbrook, C. K., Dryer, F. L., 1984, 'Chemical Kinetic Modeling of Hydrovarbon Combustion' Prog. Energy Combust. Sci. Vol. 10, p. 1   DOI   ScienceOn
2 Yang, A. S., Hsieh, W. H., Kuo, K. K., and Brown, J. J., 'Evaporation of LOX Under Supercritical and Subcritical Conditions,' AlAA 93-2188
3 Wang, D. F. and Shaw, B. D., 1996, 'Droplet Combustion in a Simulated Reduced Gravity Environment,' Combust. Sci. Tech., Vols. 113-114, pp. 451-470
4 Oefelein, J. C. and Yang, V., 1999, 'Modeling High Pressure Mixing and Combustion Processes in Liquid Rocket Engines,' J. Propulsion and Power, Vol. 14, No. 5, pp. 843-857   DOI   ScienceOn
5 Yang, V., 2000, 'Modeling of Supercritical Vaporization, Mixing, and Combustion Processes in Liquid-Fueled Propulsion Systems,' 28th Symposium (International) on Combustion, pp. 925-942
6 Bellan, J., 2000, 'Supercritical (and Subcritical) Fluid Behavior and Modeling : Drops, Streams, Shear and Mixing Layers, Jets and Sprays,' Prog. Energy Combust. Sci., Vol. 26, pp. 329-366   DOI   ScienceOn
7 Stapf, P., Dwyer, H. A., and Maly, R. R., 1998, 'A Group Combustion Model for Treating Reactive Sprays in I.C. Engines,' 27th Symposium (International) on Combustion, pp. 1857-1864
8 Kuo, K. K., 1986, Principles of Combustion, John Wiley and Sons Incorporated
9 Crowe, C. T., Sharma, M. P., and Stock, D. E., 1977, 'The Particle-Source-In Cell(PSI-Cell) Model for Gas-Droplet Flows,' J. Fluids Engineering. pp. 325-332
10 Jia, H. and Gogos, G., 1992, 'Investigation of Liquid Droplet Evaporation in Subcritical and Supercritical Gaseous Environments,' J. Thermodynamics and Heat Tramfer, Vol. 6, No. 4, pp. 738-745
11 Kang, S. H., 2000, 'Investigation of Droplet Vaporization and Combustion in High Pressure Environments,' Master Thesis Paper at KAIST
12 Westbrook, C. K., Dryer, F. L., 1984, 'Chemical Kinetic Modeling of Hydrovarbon Combustion' Prog. Energy Combust. Sci. Vol. 10, p. 1   DOI   ScienceOn
13 Ranz, W. E. and Marshall, W. R., 1952, 'Evaporation from Drops'. Chemical Engineering Progress, Vol. 48, No. 3, pp. 141-146
14 Sato, J., Konishi, K., Okada, H., and Niioka, T., 1986, 'Ignition Process of Fuel Spray Injected into High Pressure, High Temperature Atmosphere'. 21th Symposium (International) on Combustion, pp. 695-702
15 Reid, R. C., Prausnit, J. M. and Poling, B. E., 1988, The Properties of Gases and Liquids, Fourth Edition, McGRAW-HILL
16 Gosman, A. D. and lderiah, F. J. K., 1976. TEACH-T : A General Computer Program for Two-Dimensional Recirculating Flow, Imperial College, London, U. K.
17 Aggarwal, S. K., 1998, 'A Review of Spray Ignition Phenomena : Present Status and Future Research,' Prog. Energy Combust. Sci., Vol. 24, pp. 565-600   DOI   ScienceOn
18 Faeth, G. M., 1983, 'Evaporation and Combustion of Sprays,' Prog. Energy Combust. Sci., Vol. 9, pp. 1-76   DOI   ScienceOn
19 Chiu, H.H., 2000, 'Advances and Callenges in Droplet and Spray Combustion,' Prog. Energy Combust. Sci., Vol. 26, pp. 381-416   DOI   ScienceOn