Influence of Flame-Holder on Existence Important Parameters in a Duct Combustion Simulator

Authors: M. M. Doustdar, M. Mojtahedpoor

Abstract:

The effects of flame-holder position, the ratio of flame holder diameter to combustion chamber diameter and injection angle on fuel propulsive droplets sizing and effective mass fraction have been studied by a cold flow. We named the mass of fuel vapor inside the flammability limit as the effective mass fraction. An empty cylinder as well as a flame-holder which are a simulator for duct combustion has been considered. The airflow comes into the cylinder from one side and injection operation will be done by four nozzles which are located on the entrance of cylinder. To fulfill the calculations a modified version of KIVA-3V code which is a transient, three-dimensional, multiphase, multi component code for the analysis of chemically reacting flows with sprays, is used.

Keywords: KIVA-3V, flame-holder, duct combustion, effective mass fraction, mean diameter of droplets.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1107878

References:

[1] S. R. Turns, (2000), “An introduction to Combustion Concepts and Applications”, Second edition, Chapter 10, pp. 369–410.
[2] G. L Hubbard, Denny V. E. and Mills, A. F. (1975), “Droplet evaporation: Effects of transients and variable properties,” International Journal of Heat and Mass Transfer, 18(9), pp. 1003-1008.
[3] F. R. Newbold, and Amundson, N. R. (1973), “A model for evaporation of a multi-component droplet,” AIChE journal,19(1),pp. 22-30B. Smith, “An approach to graphs of linear forms (Unpublished work style),” unpublished.
[4] K. Prommersberger, Maier G. and Wittig S.(1998) “Validation and Application of a Droplet Evaporation Model for Real Aviation Fuel,” RTO AVT Symposium on Gas Turbine Combustion, Emissions and Alternative Fuels, TO-MP-14, pp. 16.1- 16.12.
[5] M. M. Doustdar, Mojtahedpoor, M. (2011), “A Numerical Study of the Effect of Pressure on Propulsive Droplets Sizing in a Duct by KIVA-3V Code,” Applied Mechanics and Materials Journal, 110-116, pp. 4527- 4531.
[6] M. M. Doustdar, Mojtahedpoor, M. (2011), “The Effects of Fuel Injection Angle and Injection Velocity on Propulsive Droplets Sizing in a Duct,” Applied Mechanics and Materials Journal, 110-116, pp. 2879- 2887.
[7] M. Mojtahedpoor, Doustdar, M. M. (2011), “A Numerical Study on the Effects of Injection Spray Cone and Pressure on Propulsive Droplets in a Ramjet,” World Academy of Science, Engineering and Technology Journal, 5, pp. 163-167.
[8] M. M. Doustdar, Mojtahedpoor, M. (2011), “Effects of Injection Velocity and Entrance Air Flow Velocity on Droplet Sizing in a Duct,” World Academy of Science, Engineering and Technology journal, 5, pp. 814-817.
[9] M. M. Doustdar, Mojtahedpoor, M., Wadizadeh, M. (2011) “Effects of Injection Initial Conditions and Length-to-Diameter Ratio on Fuel Propulsive Droplets Sizing in a Duct,” Applied Mechanics and Materials Journal, 110-116, pp. 1784-1792.
[10] A. Amsden, O’Rourke, P. J. and Butler T. D. (1989) “KIVA-II: A Computer Program for Chemically Reactive Flows with Sprays,” Los Alamos National Laboratory Report, LA-11560-MS.