Princeton University

DCE TEST MATRIX

Droplet Combustion Modeling Results


Summary of Calculations

Many of the experimental test points in the overall matrix for the Droplet Combustion Experiment (DCE) have been simulated using a time-dependent, finite element, chemically reacting flow model (Marchese, 1996). The calculations use a recently-developed n-heptane mechanism (Held, et al., 1997) along with detailed molecular transport. The calculations also consider the effect of non-luminous gas phase radiation (Marchese and Dryer, 1997).

The predictions shown here were performed in advance of the flight experiments to assist in the selection of test matrix conditions. The calculated results are presently being further refined in preparation for publication. If the reader is interested in quoting any of the results presented here, please contact Prof. Dryer.


Test Matrix


The following test points have been simulated using the droplet combustion model:

Bottle No.
Test Point No.
Ox. Environment
Pressure
Diameter
01
D103515A
65% He / 35% O2
1 Atm
1.5 mm
01
D103530A
65% He / 35% O2
1 Atm
3.0 mm
01
D103550A
65% He / 35% O2
1 Atm
5.0 mm
02
D103015A
70% He / 30% O2
1 Atm
1.5 mm
02
D103030A
70% He / 30% O2
1 Atm
3.0 mm
02
D103050A
70% He / 30% O2
1 Atm
5.0 mm
03
D102515A
75% He / 25% O2
1 Atm
1.5 mm
03
D102530A
75% He / 25% O2
1 Atm
3.0 mm
03
D102550A
75% He / 25% O2
1 Atm
5.0 mm
06
D504015A
60% He / 40% O2
0.5 Atm
1.5 mm
06
D504030A
60% He / 40% O2
0.5 Atm
3.0 mm
06
D504050A
60% He / 40% O2
0.5 Atm
5.0 mm
07
D503515A
65% He / 35% O2
0.5 Atm
1.5 mm
07
D503530A
65% He / 35% O2
0.5 Atm
3.0 mm
07
D503550A
65% He / 35% O2
0.5 Atm
5.0 mm