Seckin Gokaltun, Ph.D.

Research Scientist

Research

Research Team

(2010: From left: Merlin Ngachin,
Rinaldo G. Galdamez, Seckin Gokaltun, Stephen Wood)

Multiphase Flows

LBM simulation for gas bubble generation in a liquid with and without solids (LB2D Code,
M.Ngachin and S. Gokaltun, 2011)

Forced Convection Heat Transfer

Lattice Boltzmann Simulation of Flow and Heat Transfer in a Channel with a Blockage (Pr=6, Re=20) (S. Gokaltun, 2008)

Velocity Field:

Energy Field:

Publications

Publications

	Multiphase Flows
19.	S. Gokaltun, J. Varona, A. Awwad, D. Roelant, Detection of Particle Clustering in Gas-Solid Systems using Shadow-sizing Technique, Powder Technology, v 220, pp. 98 – 103, 2012.
18.	M. Ngachin, S. Gokaltun, M. Sukop, Simulation of Rising Bubbles Using the Multiphase Lattice Boltzmann Method – 11656, Proceedings of Waste Management Conference 2011, Feb 27 – Mar 3, 2011, Phoenix, AZ, 2011.
17.	R. G. Galdamez, S. Wood, S. Gokaltun, Numerical Simulations of Pulsed-Air Mixing Technology using Multiphase Computational Fluid Dynamics Methods – 11301, Proceedings of Waste Management Conference 2011, Feb 27 – Mar 3, 2011, Phoenix, AZ, 2011.
16.	S. Gokaltun, D. McDaniel, A Lattice Boltzmann Simulation of Gas Bubbles in Multiphase Flows with High Density Ratios – 11304, Proceedings of Waste Management Conference 2011, Feb 27 – Mar 3, 2011, Phoenix, AZ, 2011.
15.	M Ngachin, R G Galdamez, S Gokaltun, and M Sukop, “Lattice Boltzmann simulation of rising bubble dynamics using an effective buoyancy method,” Physical Review E, 2011, (in review).
14.	M. Muradoglu, S. Gokaltun, Implicit Multigrid Computations of Buoyant Light Drops Through Sinusoidal Constrictions, ASME Journal of Applied Mechanics, v 71, 6, pp 857-865, 2004.
13.	S. Gokaltun, H. Saygin, M. Muradoglu, Implicit Multigrid Computations of Unsteady Multiphase Flows in Varying Cross-Sectional Area Channels, Proceedings of the IUTAM Symposium On Integrated Modeling of Fully Coupled Fluid-Structure Interactions Using Analysis, Computations, and Experiments, (Eds. Benayora and Wei), Kluwer Academic Publishers, pp. 509 – 519, 2003.
	Micro/Macro Scale Gas Flow and Heat Transfer
12.	S. Gokaltun, G. S. Dulikravich, Lattice Boltzmann Simulations for Flow and Heat Transfer in Constricted Channels , Computer & Mathematics with Applications, 59, 7, pp. 2431-2441, 2010.
11.	S. Gokaltun, G.S. Dulikravich, M.C. Sukop, Statistical Modeling of Rarefied Gas Channel Flows, Proceedings of ASME 2009 Fluids Engineering Division Summer Meeting, FEDSM 2009, vol. 2, pp.519-527, 2009.
10.	S. Gokaltun, G. S. Dulikravich, Lattice Boltzmann Method for Steady Gas Flows in Microchannels with Imposed Slip Wall Boundary Condition, Proceedings of the ASME 5th International Conference on Nanochannels, Microchannels and Minichannels, ICNMM2007, pp. 351-356, 2007.
9.	H. Mo, C. Lin, S. Gokaltun and P. V. Skudarnov, Numerical Study ofAxisymmetric Gas Flow in Conical Micronozzles by DSMC andContinuum Methods , Proceedings of 44th AIAA Aerospace Sciences Meeting and Exhibit, AIAA-2006-0991, pp. 1-10. 2006.
	Verification and Validation of CFD
8.	P.V. Skudarnov, C.X. Lin and S. Gokaltun, Verification and Validation Studies for a Piloted Methane-Air Jet Flame, Proceedings of ASME International Mechanical Engineering Congress and Exposition, ASME Conference Proceedings, vol. 6, pp. 709-715, 2008.
7.	S. Gokaltun, P. V. Skudarnov, and C.X. Lin, Verification andValidation Studies for a Laminar Non-Premixed Methane/AirFlame, Proceedings of 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006 – Heat Transfer, pp. 7p, 2006.
6.	S. Gokaltun, P. V. Skudarnov, C.X. Lin and H. Thornburg, Verification and Validation Studies for Laminar HypersonicFlow Over a Blunted Cone and a Flat Plate, Proceedings of AMSE 2006 Fluids Engineering Division Summer Meeting, FEDS2006, vol. 1, pp. 351 – 356, 2006.
5.	S. Gokaltun, P. V. Skudarnov and C. Lin, Verification and Validation of CFD Simulation of PulsatingLaminar Flow in a Straight Pipe, Proceedings of 17th AIAA Computational Fluid Dynamics Conference, AIAA-2005-4863, pp. 1- 13, 2005.
	Pipeline Unplugging
4.	S. Gokaltun, D. McDaniel, D. Roelant, J. Varona, R. Patel, A. Awwad, Evaluation of Innovative High Level Waste Pipeline Unplugging Technologies – 9477, Proceedings of Waste Management Conference 2009, March 1- 5, Phoenix, AZ, 2009.
3.	S. Gokaltun, D. McDaniel, J. Varona, D. Roelant, E. Keszler, Full-Scale Testing of Pipeline Unplugging Technologies – NuVision’s Fluidic Wave-Action Technology – 9236, Proceedings of Waste Management Conference 2009, March 1- 5, Phoenix, AZ, 2009.
2.	D. McDaniel, S. Gokaltun, J. Varona, R. Srivastava, A. Awwad, D. Roelant,Qualification of Innovative Waste Pipeline Unplugging Technologies, Waste Management Conference 2008, Feb. 24 – 28, Phoenix, AZ, 2008.
	Optimization
1.	I.S. Akmandor, O. Oksuz, S. Gokaltun, M. Bilgin, “Genetic Optimization of Steam Injected Gas Turbine Power Plants”, GT-2002-30416, ASME Conference Proceedings, pp. 291-299, 2002.

Experience

2011	–		Research Scientist	FIU – Applied Research Center
2008	–	2011	Research Analyst	FIU – Applied Research Center
2004	–	2008	Research Assistant	FIU – Applied Research Center
2003	–	2004	Research Assistant	FIU – Mechanical Engineering Department
2001	–	2003	Research Assistant	ITU – Informatics Institute

Education

Florida International University,	Ph.D., 2008.
Mechanical and Materials Engineering,	Miami, FL, USA.
Ph.D. Dissertation: “Lattice Boltzmann Method for Flow and Heat Transfer in Microgeometries”

Istanbul Technical University,	M.S., 2003.
Computational Science and Engineering,	Istanbul, TURKEY.
M.S. Thesis: “Numerical solution of unsteady incompressible flows with applications to multiphase flows”

Middle East Technical University,	B.S., 2001
Aerospace Engineering,	Ankara, TURKEY.

Awards

2008	NSF Travel Award
2007	NSF Travel Award

Highlights

	(August, 2011) Merlin Ngachin graduated with an M.S. in Earth and Environment. Access his thesis here. Merlin will be joining Waste Control Specialists (WCS) in Texas as a Health Physicist. Congrats Merlin!
	(August, 2011) Stephen Wood graduated with an M.S. in Mechanical Engineering and he will continue his Ph.D. studies at University of Tennessee. Access Stephen’s thesis here. Congrats Stephen!
	(August, 2011) Dr. Gokaltun received an award from DOE National Energy Technology Lab for Fossil Energy Research. Read more.
	(March, 2011) FIU DOE-FellowStephen Wood wins the student poster competition at 2011 Waste Management Symposia at Phoenix, Arizona for his work on numerical modeling of pipeline fluid transients.
	(March, 2011) FIU DOE-FellowRinaldo G. Galdamez wins the FIU McNair Scholars award on numerical analysis of structural integrity of High Level Waste tanks.

Links

Applied Research
Center at FIU
Department of
Mechanical Engineering at FIU
Webpage of Dr.
Sukop at FIU
MAIDROC LAB at FIU

Seckin Gokaltun, Ph.D.

Research

Publications

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