Type
Text
Type
Dissertation
Advisor
Lopez-Pamies, Oscar | Roman Salmulyak | James Davenport.
Date
2010-08-01
Keywords
AMR, front tracking, high spead jet, jet breakup, Kelven-Helmoltz Instability, Rayleigh Instability | Applied Mathematics
Department
Department of Applied Mathematics and Statistics
Language
en_US
Source
This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree.
Identifier
http://hdl.handle.net/11401/72591
Publisher
The Graduate School, Stony Brook University: Stony Brook, NY.
Format
application/pdf
Abstract
We mainly focus on the numerical simulation of primary breakup of a high speed jet using a front tracking method. Adaptive Mesh Refinement(AMR) method is used in the simulation, which can speed up the simulation extraordinarily. This work is the extension of Pro. Zhiliang Xu.We do series of simulations to systematically study the parameters used in the cavitation model. With the right choice of parameters, the Sauter mean diameter(SMD) of droplets is in agreement with correlations based on experimental data. We also study the flow in the nozzle, to determine the level of cavitation within the nozzle and of the turbulence occurring at the nozzle exit. We find 2D-3D agreement for the mean velocity field and the occurrence of cavitation, but note some differences in the turbulence levels.To validate the importance of front tracking method in multiphase flow simulation,the primary Rayleigh Instability and Kelvin-Helmholtz Instability are also studied and produce reasonable result.
Recommended Citation
Liu, Xingtao, "Front Tracking and Application to Multi Phase Flow" (2010). Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions). 1795.
https://commons.library.stonybrook.edu/stony-brook-theses-and-dissertations-collection/1795