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Model for Studying Unsteady Droplet Combustion

Bellan, Josette and Summerfield, Martin (1977) Model for Studying Unsteady Droplet Combustion. AIAA Journal, 15 (2). pp. 234-242. ISSN 0001-1452. doi:10.2514/3.60621.

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The concept of a reduced boundary condition at the surface of a droplet is used to develop a theory of unsteady droplet burning. This theory utilizes a quasi-steady gas-phase assumption, which has been shown to be realistic for a wide range of droplet sizes at low pressures. The most significant consequence of the theory is that the problem of unsteady droplet burning is reduced to the solving of a single diffusion-type nonlinear partial differential equation having one of its boundary conditions determined by an algebraic function of the quasi-steady gas-phase variables. This reduced boundary condition incorporates the entire dependence of the solution on fuel characteristics, chemical kinetics, and thermal properties of the gases. An experiment is proposed for determining this boundary condition so that the nonsteady droplet combustion problem can be solved for a realistic situation. By using additional assumptions, a numerical estimate of the boundary condition has been made.

Item Type:Article
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Bellan, Josette0000-0001-9218-7017
Additional Information:© 1977 AIAA. Received July 1, 1975; presented as Paper 76-614 at the AIAA/SAE 12th Propulsion Conference, Palo Alto, Calif., July 26-29, 1976; revision received Oct. 6, 1976.
Subject Keywords:combustion in heterogeneous media, combustion stability, ignition and detonation, reactive flows
Issue or Number:2
Record Number:CaltechAUTHORS:20171025-134801561
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Official Citation:Josette Bellan and Martin Summerfield. "Model for Studying Unsteady Droplet Combustion", AIAA Journal, Vol. 15, No. 2 (1977), pp. 234-242.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:82667
Deposited By: Tony Diaz
Deposited On:25 Oct 2017 21:01
Last Modified:15 Nov 2021 19:52

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