I am a computational scientist at the
Institute for Clean and
Secure Energy, University of Utah.
My work is focused on developing models and codes for simulating
low-Mach-number reacting flows on supercomputers. I am also interested
in analytical and asymptotic methods for fluid flows and all things
related.
Tony Saad
email: tony.saad[at]utah.edu
web: http://www.tsaad.net
Research Interests
- Theoretical and computational fluid dynamics
- Low Mach reacting flows
- High performance hybrid computing
- Analytical and Asymptotic Methods
- Population balances
- Lagrangian particle transport with reactions
Current Research
Clean Energy from Coal
coming soon. work part of PSAAP-II contract.
Carbon Dioxide Mineralization: Accelerating Deployment via Numerical
Simulation
Carbon dioxide mineralization is the process of converting CO2
into carbonate (CO3) and then binding it
to minerals such as calcium or magnesium to form calcium or magnesium carbonates
(e.g. CaCO3, MgCO3). The resulting products represent geologically stable and
environmentally benign minerals. Sequestration of CO2 via mineral carbonation
stands among the most attractive options for handling carbon dioxide because it
provides stable CO2 storage and could have several economic benefits.
This research effort aims at analyzing the precipitation in mineral
carbonation reactors using high resolution turbulent flow simulations. By
understanding the carbonation process, we hope to identify reaction pathways
that accelerate the precipitation and provide a streamlined route to large scale
implementation. The simulations are based on solving the population balance
equation using the direct quadrature method of moments (DQMOM). These will be
coupled with a large eddy simulation solver and a mixture fraction transport
model.
Graph-Based CFD Software: Automated Algorithm Construction
The purpose of this project is to reduce CFD code complexity by implementing
the directed acyclic graph (DAG) multiphysics model. The DAG multiphysics model
aims at reducing code rigidity by shifting the programming focus from the
algorithm to the data and its connectivity. This is accomplished by first
decomposing a differential equation into basic expressions (e.g. convection,
diffusion, etc...). Subsequently, these expressions are mapped as nodes in a
directed acyclic graph that exposes the network of data requirements. In the
last step, the graph is analyzed using graph theory to extract an optimum
solution algorithm. At the outset, the programmer is only concerned with data
flow and is not exposed to algorithm design concerns.
This project takes form in two complementary C++ libraries and a CFD software
component that is used to interface these libraries with the
Uintah
computational framework. The Uintah computational framework a set of software
components and libraries that facilitate the solution of partial differential
equations on structured adaptive grids using hundreds to thousands of
processors. It is developed at the University of Utah part of the
Center for the
Simulation of Accidental Fires and Explosions (C-SAFE).
Docs
- The Maximum Entropy Method for Reconstructing Density Distributions - [pdf
- online code execution]
A summary of using the maximum entropy principle from information theory to reconstruct a PDF (or other distributions) given a finite number of moments. This is quite useful especially when using the method of moments in population balances or related stochastic transport processes. The document also includes some results from my code for reconstructing some bimodal and trimodal Gaussian distributions, beta, and log-normal distributions.
- Quadrature Methods for Numerical Integration - [pdf]
- Pressure Integration of the Navier-Stokes Equations (Invited
Talk - CRSIM) [pdf]
- Pressure Integration Rules and Restriction of the Navier-Stokes
Equations (AIAA-2010-4288)
[pdf]
- Extension of Kelvin's Minimum Energy Theorem to Flows with Open
Regions (AIAA-2010-4287)
[pdf]
- My Dissertation: Theoretical Models for Wall Injected Duct Flows
(University of Tennesse) [pdf]
- Theoretical Models for Wall Injected Flows
(Doctoral defense) [pdf
- 5 Mb]
- Energy Based Solutions of the Bidirectional Vortex
(AIAA-2008-4832)
[pdf
- 1.47 Mb]
- Energy Based Solutions for Slab Hybrid Rocket
Motors (AIAA-2008-5021)
[pdf
- 1.3 Mb]
- Analytical Models for Propulsion Devices (Invited
talk, Notre Dame University) [pdf
- 3.98 Mb]
- Variational Solutions of the Taylor-Culick Flow
(AIAA-2007-5797)
[pdf
- 3.6 Mb]
- The Flow in a Porous Channel with Arbitrary Headwall
Injection (AIAA
2007-4120) [pdf
- 3.93Mb]
- Implementation of a FV Solver using Cluster Based
Parallel Computing (Master Thesis Defense) [pdf
- 3.69 Mb]
- A Parallel Algebraic Multigrid Solver (4th FEA
Student Conf.) [pdf
- 1.65 Mb]
- Parallel Computing in CFD (AUB Seminar) [pdf
- 1.66 Mb]
- Introduction to Turbulent Flow [pdf
- 308 Kb]
- Introduction to Open Channel Flow [pdf
- 301 Kb]
- Tackling Turbulence using LES (Undergraduate
finaly year project) [pdf - 1.16 Mb]
- Direct Numerical Simulation and Large Eddy Simulation
[pdf - 370 Kb]
Code
- PDFReconstruct - A code that uses the
maximum entropy method to compute a distribution given a finite
number of moments [online]
- calling gnuplot from C [c][pman]
- heat equation 2d in C [cpp][pman]
- fluent udf: polar to cartesian transform [c][pman]
- gambit vertex data append [7z][pman]
(win only - 7z archive contains an executable)
- fluent data file extraction tool [7z]
(win only - 7z archive contains an executable)
You can also check my programming posts on
PMAN.
Mathematica
- animations in mathematica [nb][pman]
- joining tables in mathematica [nb][pman]
- solving differential equations with mathematica [parts:
I,
II,
III,
IV][pman]
You can also check my mathematica posts on
PMAN.
LaTeX
- letter without letter head [tex]
[pdf]
- letter with letter head [tex]
[pdf]
- my dissertation template [zip] [pdf] (used
by the university of Tennessee)
- my research statement template [tex] [pdf]
- apalike-doi [bst] (apalike bibliography style with doi support)
- aiaa-doi.bst [bst file] - A modified AIAA bibliography style with doi support. This modified file is based on the original style aiaa.bst found here written by Bil Kleb, Bill Wood, Erich Knausenberger. You must use the doi package for this style to work: \usepackage{doi}.
- aiaa-tc.lyx [ LyX file - Last updated Nov 11, 2010] - A LyX template for AIAA conferences. This modified style is based on the original class template found here written by Bil Kleb and Bill Wood. Contributions to former version were made by Tony Saad, Josh Batterson, Brian Maicke, and Joe Majdalani from the University of Tennessee Space Institute.
Div
Publications
Download my citations:
BibTeX
Book Chapters
- Majdalani, J., and Saad, T., "Internal
Flows Driven by Wall-Normal Injection", Advanced Fluid Dynamics,
Prof. Hyoung Woo Oh (Ed.), ISBN: 978-953-51-0270-0, InTech, 20012.
Journal Articles
- Saad, T., and Majdalani, J., "Some Thoughts on the Pressure
Integration Requirements of the Navier-Stokes Equations", Accepted for
publication in Fluid Dynamics Research.
- Crawford, D. T., Saad, T., and Ring T. A.,
"Verification and Validation of the Maximum Entropy Method for
Reconstructing Neutron Flux, with MCNP5, Attila-7.1.0 and the GODIVA
Experiment", Accepted for publication in Annals of Nuclear Energy.
- Maicke, B., Saad, T., and Majdalani, J., "On
the Compressible Hart-McClure and Sellars Mean Flow Motions", Physics
of Fluids, vol. 24, No. 9, 2012. (DOI: 10.1063/1.4748349)
- Saad, T., and Majdalani, J., "On
the Lagrangian Optimization of Wall-Injected Flows: from the Hart-McClure
Potential to the Taylor-Culick Rotational Motion," Proceedings of the
Royal Society A: Mathematical, Physical and Engineering Sciences.
(DOI:
10.1098/rspa.2009.0326)
- Saad, T., and Majdalani, J., "Rotational
Flowfields in Porous Channels with Arbitrary Headwall Injection," Journal
of Propulsion and Power, vol. 25, No. 4, 2009, pp. 921 - 929. (DOI:
10.2514/1.41926)
- Darwish, M., Saad, T., and Hamdan, Z., "Parallelization
of an Additive Multigrid Solver," Numerical Heat Transfer, Part B: Fundamentals,
Vol. 54, No. 2, 2008, pp. 157 - 184. (DOI:
10.1080/10407790802182638)
- Sams, O. C., Majdalani, J., and Saad, T., "Mean
Flow Approximations for Solid Rocket Motors with Tapered Bores," Journal
of Propulsion and Power, Vol. 23, No. 2, 2007. (DOI:
10.2514/1.15831)
- Majdalani, J., and Saad, T., "The
Taylor-Culick Profile With Arbitrary Headwall Injection," Physics of
Fluids, Vol. 19, No. 9, 2007. (DOI:
10.1063/1.2746003)
- Saad, T., Sams, O. C., and Majdalani, J., "Rotational
Flow in Tapered Slab Rocket Motors," Physics of Fluids, Vol. 18, No.
1, 2006. (DOI: 10.1063/1.2354193)
Conference Papers
- Saad, T., Smith, S. T., Abboud, A., and Ring, T. A., On a
Class of Analytical Solutions for the Population Balance Equation with
Aggregation and Breakage, AIChE Annual Meeting, Minneapolis, Minnesota,
USA, October 16 - 21, 2011.
- Abboud, A. W., Smith, S. T., Saad, T., and Ring, T.
A., A Study of Population Balance Modeling in a Large-Eddy Simulation
with Carbonate Precipitation, AIChE Annual Meeting, Minneapolis,
Minnesota, USA, October 16 - 21, 2011.
- Saad, T., and Majdalani, J., Viscous Flow in Porous Pipes with
Radially Regressing Walls, 47th AIAA/ASME/SAE/ASEE Joint Propulsion
Conference and Exhibit, San Diego, California, USA, July 31 – August 3,
2011.
- Saad, T., and Majdalani, J., The Derivation and Solution of the
Compressible Potential Equation in Orthogonal Coordinates, 47th
AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, San Diego,
California, USA, July 31 – August 3, 2011.
- Sutherland, J. C., and Saad, T., A Novel Computational Framework for
Multiphysics and Reactive Flow Simulations, AIChE Annual Meeting,
Minneapolis, Minnesota, USA, October 16 - 21, 2011.
- Sutherland, J. C., and Saad, T., The Discrete Operator Approach to
the Numerical Solution of Partial Differential Equations, 20th AIAA
Computational Fluid Dynamics Conference, Honolulu, Hawaii, June 27 – 30,
2011.
- Robinson, D., Punati, N., Saad, T., and Sutherland,
J. C., A Novel Computational Framework for Multiphysics and Reactive
Flow Simulations. 7th Combustion Institute US National Combustion
Meeting, Atlanta, Georgia, USA, March 20 -- 23, 2011.
- Saad, T., and Majdalani, J., Some Thoughts on Kelvin's Minimum
Energy Theorem, International Conference on Advanced Research and
Applications in Mechanical Engineering, Notre Dame University, Zouk
Mosbeh, Lebanon, June 13 -- 15, 2011.
- Maicke, B. A., Saad, T., and Majdalani, J., "On the Compressible Har-McClure Mean Flow Motion in Simulated Rocket Motors," 46th
AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Nashville,
TN, USA, July 25-28, 2010 (AIAA-2010-7077).
- Saad, T., and Majdalani, J., "Extension of Kelvin's Minimum Energy Theorem
to Flows with Open Regions," 40th AIAA Fluid Dynamics Conference and Exhibit,
Chicago, Illinois, USA, June 28 - July 1, 2010 (AIAA-2010-4287).
- Saad, T., and Majdalani, J., "Pressure Integration Rules and Restrictions
for the Navier-Stokes Equations," 40th AIAA Fluid Dynamics Conference and
Exhibit, Chicago, Illinois, USA, June 28 - July 1, 2010 (AIAA-2010-4288).
- Saad, T., and Majdalani, J., "Energy Based Solutions of the Bidirectional
Vortex with Multiple Mantles," 45th AIAA/ASME/SAE/ASEE Joint Propulsion
Conference and Exhibit, Denver, Colorado, USA, August 2-5, 2009
(AIAA-2009-5305).
- Saad, T., and Majdalani, J., "Energy
Based Solutions of the Bidirectional Vortex," 44th AIAA/ASME/SAE/ASEE
Joint Propulsion Conference & Exhibit, Hartford, Connecticut, USA, July
20 - 23, 2008.
- Saad, T., and Majdalani, J., "Energy
Based Mean Flow Solutions for Slab Hybrid Rocket Chambers," 44th AIAA/ASME/SAE/ASEE
Joint Propulsion Conference & Exhibit, Hartford, Connecticut, USA, July
20-23, 2008.
- Saad, T., and Majdalani, J., "The
Taylor Profile in Porous Channels with Arbitrary Headwall
Injection," 37th AIAA Fluid Dynamics Conference and Exhibit,
Miami, Florida, USA, June 25-28, 2007.
- Majdalani, J., and Saad, T., "Energy
Steepened States of the Taylor-Culick Profile," AIAA Paper 2007-5797,
July 2007. Nominated for Best Solid Rockets
Paper by Robert Geisler.
- Darwish, M.S., Saad, T., and Hamdan, Z., "A
High Scalability Parallel Algebraic Multigrid Solver," ECCOMAS CFD Conference,
Egmond Aan Zee, Netherlands, September 5-8, 2006.
- Darwish, M.S., Saad, T., "A
High Scalability Parallel Algebraic Multigrid Solver," 4th ICCFD Conference,
Ghent, Belgium, July 10-14, 2006.
- Saad, T., "Implementation
and Performance Analysis of a Parallel Algebraic Multigrid Solver,"
4th FEA Student Conference, American University of Beirut, Lebanon, May
26-27, 2005.