Optimization of Flow and Reaction Models for Capturing Gas-Phase Cellular Detonation Properties

Naor Zadok, Surya K. Oruganti, Yoram Kozak

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In the current study, a new optimization procedure is developed for tuning flow parameters and single-step reaction models to capture detonation properties. The suggested optimization framework is based on a Covariance Matrix Adaptation Evolution Strategy (CMA-ES) and a set of non-linear algebraic equations that represent basic detonation properties. First, it is demonstrated that the framework allows tuning single-step reaction models according to any detailed chemical reaction mechanism. This is achieved by mimicking the resulting Zel’dovich-NeumannDöring (ZND) temperature profile. Then, we address the case where model optimization according to experimental cell size measurements is desired. Accordingly, we develop a simplified blast wave model that can predict the cell length of single-step reaction multidimensional detonation simulations. In the future, this blast wave model will be coupled with the optimization framework. Thus, allowing fast calibration of simplified reaction and flow parameters that can replicate cellular gas-phase detonations, in any given mixture, based on experimental results.

Original languageEnglish
Title of host publicationIACAS 2022 - 61st Israel Annual Conference on Aerospace Science
PublisherTechnion – Israel Institute of Technology
ISBN (Electronic)9781713862253
StatePublished - 1 Jan 2022
Externally publishedYes
Event61st Israel Annual Conference on Aerospace Science, IACAS 2022 - Haifa, Israel
Duration: 9 Mar 202210 Mar 2022

Publication series

NameIACAS 2022 - 61st Israel Annual Conference on Aerospace Science

Conference

Conference61st Israel Annual Conference on Aerospace Science, IACAS 2022
Country/TerritoryIsrael
CityHaifa
Period9/03/2210/03/22

ASJC Scopus subject areas

  • Aerospace Engineering

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