Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/235757
Title: DYNAMICS OF HYDROGEN DETONATION WITH DISPERSED PHASE
Authors: XU YONG
ORCID iD:   orcid.org/0000-0002-7618-8279
Keywords: Hydrogen detonation, two-phase detonation, pulsating detonation, detonation extinction, detonation re-initiation, iInterfacial instability
Issue Date: 25-Jul-2022
Citation: XU YONG (2022-07-25). DYNAMICS OF HYDROGEN DETONATION WITH DISPERSED PHASE. ScholarBank@NUS Repository.
Abstract: Eulerian─Lagrangian method with gas-droplet/particle two-way coupling is used to predict the detonation wave in dilute water sprays or particle curtain. Pulsating detonation and extinction in stoichiometric hydrogen/oxygen/argon gas with water sprays are first studied with a one-dimensional configuration. The pulsating phenomenon originates from the interactions between gas dynamics, chemical kinetics, and droplet dynamics inside the induction zone. The propagation and extinction of detonations in fine water sprays are numerically simulated. Extinction analysis is performed with the evolutions of detonation frontal structure, spatial distribution of thermochemical variables and interphase transfer rates. Furthermore, the detonation interacting with water cloud is re-initiated by a local hot spot from shock focusing of upper and lower diffracted detonations. Finally, transmission of a hydrogen detonation wave across a finite-length cloud of inert solid particle is simulated. Due to the Stokes drag force, different evolution regimes are formed: quasi-stationary regime, shrinkage regime, constant-thickness regime, and expansion regime.
URI: https://scholarbank.nus.edu.sg/handle/10635/235757
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Thesis_Yong_Xu_20221121.pdf14.48 MBAdobe PDF

OPEN

NoneView/Download

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.