Bisio V, Montomoli F, Rossin S, Tagarielli V. On the pressure wave emanating from a deflagration flame front.
Heliyon 2024;
10:e26012. [PMID:
38371964 PMCID:
PMC10873735 DOI:
10.1016/j.heliyon.2024.e26012]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/15/2024] [Accepted: 02/06/2024] [Indexed: 02/20/2024] Open
Abstract
We consider a spherical flame expanding from an ignition point through a homogeneous, flammable gaseous mixture. We analytically predict the transient pressure and velocity fields ahead of the flame as a function of the flame front position, which is assumed to evolve in time according to a power-law relation. The predictions are successfully validated by CFD simulations. We show that the model is also effective for analyzing real deflagration problems, by predicting measurements taken in hydrocarbon deflagration tests.
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