A Numerical Study of the Effect of Side-Dump Angle on Fuel Droplets Sizing in a Three- Dimensional Side-Dump Combustor
A numerical study on the effect of side-dump angle on
fuel droplets sizing and effective mass fraction have been
investigated in present paper. The mass of fuel vapor inside the
flammability limit is named as the effective mass fraction. In the first
step we have considered a side-dump combustor with dump angle of
0o (acrossthe cylinder) and by increasing the entrance airflow velocity
from 20 to 30, 40 and 50 (m/s) respectively, the mean diameter of
fuel droplets sizing and effective mass fraction have been studied.
After this step, we have changed the dump angle from 0o to 30o,45o
and finally 60o in direction of cylinderand also we have increased the
entrance airflow velocity from 20 up to 50 (m/s) with the amount of
growth of 10(m/s) in each step, to examine its effects on fuel droplets
sizing as well as effective mass fraction. With rise of entrance airflow
velocity, these calculations are repeated in each step too. The results
show, with growth of dump-angle the effective mass fraction has
been decreased and the mean diameter of droplets sizing has been
increased. To fulfill the calculations a modified version of KIVA-3V
code which is a transient, three-dimensional, multiphase,
multicomponent code for the analysis of chemically reacting flows
with sprays, is used.
[1] M. Mojtahedpoor, Effects of Injection Velocity and Entrance Air Flow
Velocity on Droplet Sizing in a Duct, world academy of science,
technology and engineering journal, March 2011.
[2] M. M. Doustdar, M. Mojtahedpoor, 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, pp.
383-386, April 2011.
[3] M. M. Doustdar, M. Mojtahedpoor, M Wadizadeh, Effects of Injection
Initial Conditions and Length-To-Diameter Ratio on Fuel Propulsive
Droplets Sizing in A Duct, International Conference on Mechanical and
Aerospace Engineering, New Delhi, India, March 2011.
[4] M. M. Doustdar, M. Mojtahedpoor, A Numerical Study on the Effects of
Fuel Injection Angle and Injection Velocity on Propulsive Droplets
Sizing in a Duct, Singapore, 2011.
[5] T. H. Ko,A Numerical Study on the Effects of Side-Inlet Angle on the
Mixing Phenomena in A Three-Dimensional Side-Dump Combustor,
International Communications In Heat And Mass Transfer, Vol 33, Issue
7, pp. 853-862, August 2006.
[6] T.H. Ko, Three-Dimensional Fuel-Air Mixing Phenomena in A Side-
Dump Combustor: A Numerical Study, International Communications in
Heat And Mass Transfer, Vol 32, Issue 10, pp. 1360-1374, November
2005.
[7] M. M. Doustdar, M. Mojtahedpoor, A Numerical Study of the Effect of
Injection Velocity on Fuel Droplets Sizing In A Three-Dimentional Side-
Dump Combustor, Applied Mechanics And Materials, Vol 52-54, pp.
2045-2050, March 2011.
[8] A. Amsden, P. J. O-Rourke, T. D. Butler, KIVA-II: A Computer
Program for Chemically Reactive Flows with Sprays, Los Alamos
National Laboratory Report, LA-11560-MS, May 1989.
[1] M. Mojtahedpoor, Effects of Injection Velocity and Entrance Air Flow
Velocity on Droplet Sizing in a Duct, world academy of science,
technology and engineering journal, March 2011.
[2] M. M. Doustdar, M. Mojtahedpoor, 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, pp.
383-386, April 2011.
[3] M. M. Doustdar, M. Mojtahedpoor, M Wadizadeh, Effects of Injection
Initial Conditions and Length-To-Diameter Ratio on Fuel Propulsive
Droplets Sizing in A Duct, International Conference on Mechanical and
Aerospace Engineering, New Delhi, India, March 2011.
[4] M. M. Doustdar, M. Mojtahedpoor, A Numerical Study on the Effects of
Fuel Injection Angle and Injection Velocity on Propulsive Droplets
Sizing in a Duct, Singapore, 2011.
[5] T. H. Ko,A Numerical Study on the Effects of Side-Inlet Angle on the
Mixing Phenomena in A Three-Dimensional Side-Dump Combustor,
International Communications In Heat And Mass Transfer, Vol 33, Issue
7, pp. 853-862, August 2006.
[6] T.H. Ko, Three-Dimensional Fuel-Air Mixing Phenomena in A Side-
Dump Combustor: A Numerical Study, International Communications in
Heat And Mass Transfer, Vol 32, Issue 10, pp. 1360-1374, November
2005.
[7] M. M. Doustdar, M. Mojtahedpoor, A Numerical Study of the Effect of
Injection Velocity on Fuel Droplets Sizing In A Three-Dimentional Side-
Dump Combustor, Applied Mechanics And Materials, Vol 52-54, pp.
2045-2050, March 2011.
[8] A. Amsden, P. J. O-Rourke, T. D. Butler, KIVA-II: A Computer
Program for Chemically Reactive Flows with Sprays, Los Alamos
National Laboratory Report, LA-11560-MS, May 1989.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:64916", author = "M. Mojtahedpoor and M. M. Doustdar", title = "A Numerical Study of the Effect of Side-Dump Angle on Fuel Droplets Sizing in a Three- Dimensional Side-Dump Combustor", abstract = "A numerical study on the effect of side-dump angle on
fuel droplets sizing and effective mass fraction have been
investigated in present paper. The mass of fuel vapor inside the
flammability limit is named as the effective mass fraction. In the first
step we have considered a side-dump combustor with dump angle of
0o (acrossthe cylinder) and by increasing the entrance airflow velocity
from 20 to 30, 40 and 50 (m/s) respectively, the mean diameter of
fuel droplets sizing and effective mass fraction have been studied.
After this step, we have changed the dump angle from 0o to 30o,45o
and finally 60o in direction of cylinderand also we have increased the
entrance airflow velocity from 20 up to 50 (m/s) with the amount of
growth of 10(m/s) in each step, to examine its effects on fuel droplets
sizing as well as effective mass fraction. With rise of entrance airflow
velocity, these calculations are repeated in each step too. The results
show, with growth of dump-angle the effective mass fraction has
been decreased and the mean diameter of droplets sizing has been
increased. To fulfill the calculations a modified version of KIVA-3V
code which is a transient, three-dimensional, multiphase,
multicomponent code for the analysis of chemically reacting flows
with sprays, is used.", keywords = "Side-Dump combustor, Droplets sizing, Side-Dump
angle, KIVA-3V", volume = "5", number = "12", pages = "2723-4", }