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Fahd E. Alam
University of South Carolina
8Publications
4H-index
42Citations
Publications 8
Newest
#1Fahd E. Alam (USC: University of South Carolina)H-Index: 4
#2Ali Charchi Aghdam (USC: University of South Carolina)H-Index: 1
Last.Tanvir Farouk (USC: University of South Carolina)H-Index: 18
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Abstract This paper reports simulation results of oscillatory cool flame burning of an isolated, submillimeter sized n-heptane (n-C7H16) droplet in a selectively ozone (O3) seeded nitrogen-oxygen (N2-O2) environments at atmospheric pressure. An evolutionary one-dimensional droplet combustion code encompassing relevant physics and detailed chemistry was employed to explore the roles of low-temperature chemistry, O3 seeding, and dynamic flame structure on burning behaviors. For XO2= 21% and a rang...
2 CitationsSource
#1Fahd E. Alam (USC: University of South Carolina)H-Index: 4
#2Sang Hee Won (USC: University of South Carolina)H-Index: 3
Last.Tanvir Farouk (USC: University of South Carolina)H-Index: 18
view all 4 authors...
Abstract Cool flame combustion of individual and isolated sub-millimeter sized n -heptane ( n -C 7 H 16 ) and n -decane ( n -C 10 H 22 ) droplets are computationally investigated for atmospheric and higher operating pressure (25 atm) conditions with varying levels of ozone (O 3 ) mole fractions in the surroundings. A sphero-symmetric, one-dimensional, transient, droplet combustion model is utilized, employing reduced versions of detailed chemical kinetic models for the fuel species and an append...
3 CitationsSource
#1Fahd E. AlamH-Index: 4
#2Francis M. HaasH-Index: 15
Last.Frederick L. DryerH-Index: 68
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The reactivity-promoting effect of trace nitrogen oxides (NOx) on post-induction oxidation of a synthetic natural gas (2% ethane in methane) has been experimentally studied in a high-pressure laminar flow reactor (HPLFR) at 10 ± 0.1 atm, nominal reaction temperature of 818 ± 5 K, and several equivalence ratios (φ ∼ 0.5, 1.0, and 2.0). Each set of experimental measurements was simulated using several literature C0–C2 + NOx kinetic models, both recent and legacy, using approaches shown to lead to ...
2 CitationsSource
#1Tanvir FaroukH-Index: 18
#2Daniel L. DietrichH-Index: 13
Last.Frederick L. DryerH-Index: 68
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#1Tanvir Farouk (USC: University of South Carolina)H-Index: 18
#2Daniel L. Dietrich (Glenn Research Center)H-Index: 13
Last.Frederick L. Dryer (Princeton University)H-Index: 68
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Abstract Observations of “ Cool Flame ” burning for large diameter isolated droplets on board the International Space Station have stimulated interest in combustion initiation/generation of non-premixed combustion modes. For a number of n -alkane fuels at large initial droplet diameters, the initiation process was observed to first establish a hot flame condition that radiatively extinguished, followed by a quasi-steady, “ Cool Flame ” droplet burning mode. However, recent large diameter n -deca...
13 CitationsSource
#1Yu Cheng Liu (UM: University of Michigan)H-Index: 11
#2Fahd E. Alam (USC: University of South Carolina)H-Index: 4
Last.Tanvir Farouk (USC: University of South Carolina)H-Index: 18
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Abstract This study reports results of experiments on the isolated droplet burning characteristics of butanol isomers ( n -, iso -, sec -, and tert -) under standard atmosphere conditions in an environment that promotes spherical combustion. The data are compared with predictions from a detailed numerical model (DNM) that incorporates complex combustion chemistry, radiative heat transfer, temperature dependent variable fluid properties, and unsteady gas and liquid transport. Computational predic...
7 CitationsSource
#1Fahd E. Alam (USC: University of South Carolina)H-Index: 4
#2Frederick L. Dryer (Princeton University)H-Index: 68
Last.Tanvir Farouk (USC: University of South Carolina)H-Index: 18
view all 3 authors...
ABSTRACTThe ‘FLame EXtinguishment’ (FLEX) program conducted by NASA on board the International Space Station (ISS) has been assisting in developing fire-safety protocols for low gravity applications through microgravity droplet combustion experiments. A wide range of fuels, including alcohols and alkanes, have been studied in different ambient conditions that also encompass the use of various diluent species and concentrations. A prime focus of the work has been to observe the relative effective...
4 CitationsSource
#1Fahd E. Alam (USC: University of South Carolina)H-Index: 4
#2Yu Cheng Liu (Cornell University)H-Index: 11
Last.Tanvir Farouk (USC: University of South Carolina)H-Index: 18
view all 5 authors...
Abstract Recent interest in alternative and bio-derived fuels has emphasized butanol over ethanol as a result of its higher energy density, lower vapor pressure and more favorable gasoline blending properties. Numerous efforts have examined the combustion of butanol from the perspective of low dimensional gas-phase transport configurations that facilitate modeling and validation of combustion kinetics. However, fewer studies have focused on multiphase butanol combustion, and none have appeared o...
11 CitationsSource
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