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Inkant Awasthi
University of Nebraska–Lincoln
4Publications
2H-index
23Citations
Publications 4
Newest
#1Inkant Awasthi (NU: University of Nebraska–Lincoln)H-Index: 2
#2Daniel N. Pope (UMN: University of Minnesota)H-Index: 9
Last.George Gogos (NU: University of Nebraska–Lincoln)H-Index: 17
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Abstract Results are presented from transient numerical simulations of combustion of an isolated heptane (n- C 7 H 16 ) droplet in nearly quiescent ambient air. The focus is on the effects of environment temperature and droplet size on the combustion characteristics. Droplet sizes range from 10 μm to 1 mm, environment temperatures range from 800 K to 1600 K, and pressure is 1 atm. The results show that ignition delay times have a very moderate dependence on droplet diameter. With an increase in ...
#1Inkant AwasthiH-Index: 2
#2George GogosH-Index: 17
Last.T. Sundararajan (Indian Institute of Technology Madras)H-Index: 29
view all 3 authors...
Abstract Results are presented from numerical simulations of the combustion process of an isolated methanol droplet in a nearly quiescent ambient air ( T ∞ = 1200 K, and p ∞ = 1 atm.). The focus is on the effects of size variation for droplets which are present in a practical spray. We show a gradual transition from a kinetically controlled regime of small droplets to a diffusion controlled regime of large droplets. The analysis underlines the importance of accurate chemical kinetics, especially...
#1Inkant Awasthi (NU: University of Nebraska–Lincoln)H-Index: 2
#2George Gogos (NU: University of Nebraska–Lincoln)H-Index: 17
Last.T. Sundararajan (Indian Institute of Technology Madras)H-Index: 29
view all 3 authors...
The paper presents a transient, axisymmetric numerical simulation of combustion of methanol droplets in a nearly quiescent environment (with ambient temperature of 1200 K, ambient pressure of 1 atm., and Reynolds number of 10−2). The focus is on the combustion process of droplet sizes applicable in a practical spray. A gradual transition from kinetically controlled combustion to diffusion controlled combustion is found with the increase in droplet sizes. Droplets smaller than ≈ 60 μm are influen...
#1Inkant Awasthi (NU: University of Nebraska–Lincoln)H-Index: 2
#2George Gogos (NU: University of Nebraska–Lincoln)H-Index: 17
Autoignition in an unstrained, laminar mixing layer of methanol/air is investigated using detailed reaction mechanism and full multicomponent mass diffusion formulation. The temperature of the fuel stream is varied from 400 K to 1200 K, whereas the oxidizer stream is held at a fixed temperature of 1200 K. The calculations are performed for pressure p = 1 bar. Transient evolution of the autoignition kernel from initial partially premixed flame structures to final diffusion flame is demonstrated. ...
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