Link to the University of Pittsburgh Homepage
Link to the University Library System Homepage Link to the Contact Us Form

A Hybrid Filtered Density Function Spectral-Element Large Eddy Simulator

Tapracharoen, Krisda (2018) A Hybrid Filtered Density Function Spectral-Element Large Eddy Simulator. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

Download (2MB) | Preview


This dissertation is focused on the development of a hybrid scheme, combining the spectral-element method (SEM) solver with a Lagrangian Monte Carlo (MC) filtered density function (FDF) simulator for large eddy simulation (LES) of turbulent flows. The methodology is shown to be suitable for LES, as a larger portion of the resolved energy is captured as the order of spectral approximation increases. The consistency and the overall performance of the SEM-MC solver, and the realizability of the simulated results are demonstrated via LES of a temporally developing mixing layer under both non-reacting and reacting conditions. The effects of grid resolution and polynomial order ($h-p$ refinement), and ensemble average size ($\Delta_E$) are studied. The computational scheme is fully parallelized via the message passing interface (MPI) methodology.


Social Networking:
Share |


Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Tapracharoen, Krisdakrt35@pitt.edukrt350000-0002-7900-5140
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairGivi,
Committee CoChairSammak,
Committee MemberBabaee,
Committee MemberLee,
Committee MemberSingh,
Date: 25 September 2018
Date Type: Publication
Defense Date: 16 July 2018
Approval Date: 25 September 2018
Submission Date: 30 July 2018
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 58
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Computational Modeling and Simulation
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: large eddy simulation; filtered density function; Monte Carlo methods; spectral-element method.
Date Deposited: 25 Sep 2018 16:48
Last Modified: 25 Sep 2018 16:48


Monthly Views for the past 3 years

Plum Analytics

Actions (login required)

View Item View Item