Irenäus Wlokas
Lehrstuhl für Fluiddynamik Dr.-Ing. Irenäus Wlokas
Contact details:
Carl-Benz Straße 199
47057 Duisburg
Room: NETZ 1.11
Phone: +49-(0)203-379 8104
E-mail: irenaeus.wlokas [at] uni-due.de
Research Interests
- Transport phenomena in continuous media
- Transport phenomena in granular media
- Numerical methods for partial differential equations
- Discrete mathematics
- Chemistry modeling and simulation of particle synthesis and reacting flows
- Kinetics of nanoparticle formation and growth in gas phase reactions
- Nanoparticle synthesis from the gas phase in flame-, wall-, and plasma-heated reactors
Scientific Career
since 2011
Academic Council, University of Duisburg-Essen, Chair in Fluid Dynamics
2008 - 2011
Group leader "Reaction mechanims and aerosol dynamics", University of Duisburg-Essen, Institute for Combustion and Gasdynamics
2000-2008
Research assistant , University of Duisburg-Essen, Institute for Combustion and Gasdynamics
2006
PhD (Mechanical Engineering) University of Duisburg-Essen
1996-2000
Project research assistant , DFG Priority Research Program ANumE, Adaptive Mesh Refinement for Reactive and Multiphase Flows
1996
Diplom (Mechanical Engineering) University of Duisburg-Essen
Selected Publications
Janas, P., Wlokas, I., Böhm B. and Kempf A. „On the evolution of the flow field in a spark ignition engine“, has been accepted for publication Flow, Turbulence and Combustion (2016).
Nguyen, T. M., Proch, F., Wlokas, I., & Kempf, A. M. Large Eddy Simulation of an Internal Combustion Engine Using an Efficient Immersed Boundary Technique. Flow, Turbulence and Combustion, 1-40.
Sikalo, N., Hasemann, O., Schulz, C., Kempf, A., Wlokas, I., A Genetic Algorithm-Based Method for Optimization of Reduced Kinetics Mechanisms accepted by International Journal of Chemical Kinetics (2015).
Deng, L., Kempf, A., Hasemann, O. Korobeinichev, O. P., Wlokas, I., Investigation of the sampling nozzle effect on laminar flat flames, Combustion and Flame, Volume 162, Issue 5, May 2015, Pages 1737-1747, ISSN 0010-2180, http://dx.doi.org/10.1016/j.combustflame.2014.11.035.
I. Wlokas, H. Wiggers, and C. Schulz, "Detailed studies of precursor chemistry and particle growth in the flame synthesis of iron oxide nanoparticles," in Zel'dovich Memorial - Accomplishments in Combustion Science in the Last Decade, A. A. Birosv, and S. M. Frolov, eds. (Torus Press, 2014), pp. 26-35. ISBN: 978-5-94588-156-3.
M. Poliak, A. Fomin, V. Tsionsky, S. Cheskis, I. Wlokas, I. Rahinov, On the mechanism of nanoparticle formation in a flame doped by iron pentacarbonyl, Physical Chemistry Chemical Physics 17.1 (2015): 680-685, doi: 10.1039/C4CP04454A.
O.M. Feroughi, S. Hardt, I. Wlokas, T. Hülser, H. Wiggers, T. Dreier, C. Schulz, Laser-based in-situ measurement and simulation of gas-phase temperature and iron atom concentration in a pilot-plant nanoparticle synthesis reactor, Proceedings of the Combustion Institute 35.2 (2015): 2299-2306, doi:10.1016/j.proci.2014.05.039.
A. Rittler, C. Weise, I. Wlokas, A. M. Kempf, Large eddy simulation of TiO2 nanoparticle synthesis in a spray flame reactor, accepted for oral presentation at the Aerosol Technology (2014), Karlsruhe.
C. Weise, I. Wlokas, Optimization of the setup and operating conditions of nanoparticle synthesis reactors by simulation, accepted for oral presentation at the Aerosol Technology (2014), Karlsruhe.
C. Weise, J. Menser, S. Kaiser, A. Kempf, I. Wlokas, Numerical investigation of the process steps in a spray flame reactor for nanoparticle synthesis, Proceedings of the Combustion Institute 35.2 (2015): 2259-2266, doi:10.1016/j.proci.2014.05.037.
N. Sikalo, O. Hasemann, C. Schulz, A. Kempf, I. Wlokas, A Genetic Algorithm-Based Method for the Automatic Reduction of Reaction Mechanisms, International Journal of Chemical Kinetics 46 (1), (2014) 41-59.
Weise, C., Faccinetto, A., Kluge, S., Kasper, T., Wiggers, H., Schulz, C., Wlokas, I., Kempf, A., Buoyancy induced limits for nanoparticle synthesis experiments in horizontal premixed low-pressure flat flame reactors (2013) 1-18.
Wlokas, I., Faccinetto, A., Tribalet, B., Schulz, C., Kempf, A., Mechanism of iron oxide formation from iron pentacarbonyl doped hydrogen/oxygen flames, (2013) 487-498.
Hecht, C., van der Schoot, N., Kronemeyer, H., Wlokas, I., Lindtken ,R., and Schulz, C., Visualization oft he gas flow in fuel cell bipolar plates using molecular seeding and micro-particle image velocimetry, Experiments in Fluids 52, (2012) 743-748.
Yang, H., Greszik, D., Wlokas, I., Dreier, T., and Schulz, C., Tunable diode laser absorption sensor fort he simultaneous measurement of water film thickness, Liquid- and vapor-phase temperature, Applied Physics B: Lasers and Optics 104 (1), (2011) 21-27.
Wlokas, I., Hecht, C., and Schulz, C., Model for the formation of Fe2O3 in premixed Fe(CO)5-doped low-pressure H2/O2 flames, 5th European Combustion Meeting (2011), Cardiff
Hardt, S., Hamid, A., Weise, C., Wlokas, I., Wiggers, H., and Schulz, C., Experimental and Numerical Investigation of Flame Spray assisted TiO2 Synthesis from Titaniumtetraisopropoxide, 5th European Combustion Meeting (2011), Cardiff
Hänel, D., Völker, F., Vilsmeier, R., Wlokas, I., A front tracking approach for finite-volume methods, in Shock Waves 1, K. Hannemann and F. Seiler, Editors (Springer, Berlin, Heidelberg, (2009) 1011-1016.
Wlokas, I., Staude, S., Hecht, C., Atakan, B., and Schulz, C., Measurement and simulation of Fe-atom concentrations in premixed Fe(CO)5-doped low-pressure H2/O2 flames, 4th European Combustion Meeting (2009), Viena
Staude, S., Hecht, C., Wlokas, I., Schulz, C., and Atakan, B., Experimental and Numerical Investigation of Fe(CO)5 Addition to Laminar Premixed Hydrogen/Oxygen/Argon Flame, Zeitschrift für Physikalische Chemie 223, (2009) 639-649.
Finck,M., Hänel, D., Wlokas, I., Simulation of nasal flow by lattice Boltzmann methods, Computers in Biology and Medicine 37 (6), (2007) 739-749.
Hänel, D., Lantermann, U., Kaiser, R., Wlokas, I., Generalized lattice-BGK concept for thermal and chemically reacting flows at low Mach numbers, International Journal for Numerical Methods in Fluids 51 (4), (2006) 351-369.