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Blaž Mikuž

Znanstveni sodelavec

Institut
Jožef Stefan
Jamova cesta 39
SI-1000 Ljubljana
Slovenija

Telefon: +386 1 5885 244
Faks: +386 1 5885 377
E-pošta: blaz.mikuz@ijs.si

 

 

 

 

Raziskovalna področja

  • Modeliranje turbulentnega toka v gorivnem elementu tlačnovodnega reaktorja.
  • Modeliranje prenosa snovi in toplote v reaktorjih hlajenimi s tekočimi kovinami.
  • Numerično simuliranje dvofaznih tokov z veliko ukrivljeno površino.
  • Eksperimentalne meritve Taylorjevega mehurja v turbulentnem toku.

Izobrazba

Nagrade

Delovne izkušnje

  • Znanstveni sodelavec na Institutu Jožef Stefan, Odsek za reaktorsko tehniko, od januarja 2019.
  • Svetovalec v raziskavah na Nuclear Research and Consultancy Group (NRG), Petten, Nizozemska, februar 2017 - december 2018. CFD specialist v raziskovalni skupini in podpora pri zasnovi novih naprav za produkcijo medicinskih izotopov (npr. molibden-99)  v   HFR (ang. High  Flux Reactor) reaktorju. Moje glavne raziskovalne teme so obsegale računske simulacije tekočin in prenosa toplote v različnih jedrskih gorivih - od kompleksnih RANS simulacij v tlačnovodnem gorivnem svežnju do natančnih LES in DNS simulacij v oplodnem reaktoru hlajenim s tekočim svincem. 
  • Mladi raziskovalec na Institutu Jožef Stefan, Odsek za reaktorsko tehniko, avgust 2011 - januar 2017. V skupini za jedrsko termohidravliko sem se v sklopu svoje doktorske disertacije ukvarjal z modeliranjem turbulentnega toka v gorivnem svežnju tlačnovodnega reaktorja.
  • Sodelovanje z raziskovalno skupino Pipistrela, 2010-2011. V sklopu svojega diplomskega dela sem zasnoval in kalibriral Pitotovo cev za merjenje hitrosti in vpadnega kota letala.
  • Sodelovec Observatorija ÄŒrni Vrh in opazovalnega projekta PIKA. Leta 2004 razvil senzor oblakov. Od leta 2008 operater na 60-centimetrskem robotiziranem teleskopu, odkril pet supernov in NEO asteroid 2015 SO2.

ÄŒlanstvo v strokovnih združenjih

Izbrane objave

ÄŒlanki v SCI revijah

ZAJEC, Boštjan, MATKOVIÄŒ, Marko, KOSANIÄŒ, Nejc, ODER, Jure, MIKUŽ, Blaž, KREN, Jan, TISELJ, Iztok. Turbulent flow over confined backward-facing step : PIV vs. DNS. Applied sciences. 2021, vol. 11, iss. 22, pp. 10582. ISSN 2076-3417. DOI: 10.3390/app112210582. [COBISS.SI-ID 84357891]
 
TISELJ, Iztok, SHARMA, Mohit, ZAJEC, Boštjan, VELJANOVSKI, Nikola, KREN, Jan, CIZELJ, Leon, MIKUŽ, Blaž. Investigation of turbulent flow in square duct with heated foil thermometry. International journal of heat and mass transfer. 2021, vol. 175, pp. 121381. ISSN 0017-9310. DOI: 10.1016/j.ijheatmasstransfer.2021.121381. [COBISS.SI-ID 62825219]
 
BIEDER, Ulrich, UITSLAG-DOOLAARD, Heleen, MIKUŽ, Blaž. Investigation of pressure loss and velocity distribution in fuel assemblies with wire-wrapped rods by using RANS and LES with wall functions. Annals of Nuclear Energy, ISSN 0306-4549, 2021, vol. 152, str. 108025-1-108025-15, doi: 10.1016/j.anucene.2020.108025. [COBISS.SI-ID 45607683]

FREDERIX, Edo, KOMEN, Ed, TISELJ, Iztok, MIKUŽ, Blaž. LES of turbulent co-current Taylor bubble flow. Flow, turbulence and combustion, ISSN 1386-6184, 2020, doi: 10.1007/s10494-020-00118-0. [COBISS.SI-ID 33273383]

MIKUŽ, Blaž, ROELOFS, Ferry. Low resolution modelling of mixing phenomena in PWR fuel assemblies. Nucl. Eng. Des. 2020, vol. 360, pp. 110504. doi: 10.1016/j.nucengdes.2019.110504. [COBISS.SI-ID 33010727]

DOVIZIO, Daniele, MIKUŽ, Blaž, SHAMS, Afaque, ROELOFS, Ferry. Validating RANS to predict the flow behavior in wire-wrapped fuel assemblies. Nucl. Eng. Des. 2020, vol. 356, pp. 110376. doi: 10.1016/j.nucengdes.2019.110376. [COBISS.SI-ID 32889895]

ROELOFS, Ferry, DOVIZIO, Daniele, UITSLAG-DOOLAARD, Heleen, DE SANTIS, Dante, MATHUR, Akshat, MIKUŽ, Blaž, SHAMS, Afaque. Core thermal hydraulic CFD support for liquid metal reactors. Nucl. Eng. Des. 2019, vol. 355, pp. 110322. doi: 10.1016/j.nucengdes.2019.110322. [COBISS.SI-ID 32652583]

ROELOFS, Ferry, UITSLAG-DOOLAARD, Heleen, DOVIZIO, Daniele, MIKUŽ, Blaž, SHAMS, Afaque, BERTOCCHI, Fulvio, ROHDE, Martin, PACIO, Julio, DI PIAZZA Ivan, KENNEDY Graham, VAN TICHELEN Katrien, OBABKO, Aleks, MERZARI, Elia. Towards validated prediction with RANS CFD of flow and heat transport in a wire-wrap fuel assembly. Nucl. Eng. Des. 2019, vol. 353, pp. 110273. doi: 10.1016/j.nucengdes.2019.110273. [COBISS.SI-ID 32652839]

MIKUŽ, Blaž, SHAMS, Afaque. Assessment of RANS models for flow in a loosely spaced bare rod bundle with heat transfer in low Prandtl number fluid. Ann. Nucl. Energy. 2019, vol. 124, pp. 441-459. doi: 10.1016/j.anucene.2018.10.017. [COBISS.SI-ID 31819559]

SHAMS, Afaque, MIKUŽ, Blaž, ROELOFS, Ferry. Numerical prediction of flow and heat transfer in a loosely spaced bare rod bundle. Int. J. Heat Fluid Flow. 2018, vol. 73, pp. 42-62. doi: 10.1016/j.ijheatfluidflow.2018.07.006. [COBISS.SI-ID 31606567]

MIKUŽ, Blaž, TISELJ, Iztok. URANS prediction of flow fluctuations in rod bundle with split-type spacer grid. Int. J. Heat Fluid Flow. 2017, vol. 64, pp. 10-22. doi: 10.1016/j.ijheatfluidflow.2017.01.008. [COBISS.SI-ID 30262055]

MIKUŽ, Blaž, TISELJ, Iztok. Wall-resolved Large Eddy Simulation in grid-free 5×5 rod bundle of MATiS-H experiment. Nucl. Eng. Des. 2016, vol. 298, pp. 64-77. doi: 10.1016/j.nucengdes.2015.12.021. [COBISS.SI-ID 29141543]

MIKUŽ, Blaž, TISELJ, Iztok, BEYER, Matthias, LUCAS, Dirk. Simulations of flashing experiments in TOPFLOW facility with TRACE code. Nucl. Eng. Des. 2015, vol. 283, pp. 60-70. doi: 10.1016/j.nucengdes.2014.09.043. [COBISS.SI-ID 28051239]

 

Objavljeni znanstveni prispevek na konferenci

MIKUŽ, Blaž, KREN, Jan, BASAVARAJ, Anil Kumar, KUŠÄŒER, Danjela. Influence of seeding particles on particle image velocimetry measurements in single-phase turbulent pipe flow. 30th International Conference Nuclear Energy for New Europe, Portorož, Slovenia, 2021 September 6-9. Conference Proceedings.[COBISS.SI-ID 91311107]
 
KREN, Jan, MIKUŽ, Blaž. Large interface tracking algorithm for air-water slug in turbulent flow. 30th International Conference Nuclear Energy for New Europe, Portorož, Slovenia, 2021 September 6-9. Conference Proceedings. [COBISS.SI-ID 91265283]
 
KREN, Jan, MIKUŽ, Blaž, TISELJ, Iztok. Numerical analysis of turbulent heat transfer in rectangular duct. International Symposium on Advances in Computational Heat Transfer 2021 (CHT-21 ICHMT), Rio de Janeiro, Brazil, 2021 August 15 - 19. Conference Proceedings. [COBISS.SI-ID 84554243]
 
ZAJEC, Boštjan, BASAVARAJ, Anil Kumar, MIKUŽ, Blaž, KONÄŒAR, Boštjan, SHARMA, Mohit, MATKOVIÄŒ, Marko. Experimental and numerical analysis of heat transfer on the annular test section. 29th International Conference Nuclear Energy for New Europe, Portorož, Slovenia, 2020 September 7-10. Conference Proceedings. [COBISS.SI-ID 46912771]
 
SHARMA, Mohit, MIKUŽ, Blaž, TISELJ, Iztok, ZAJEC, Boštjan, VELJANOVSKI, Nikola, KREN, Jan, CIZELJ, Leon. Investigation of temperature fluctuations in conjugate heat transfer. 29th International Conference Nuclear Energy for New Europe, Portorož, Slovenia, 2020 September 7-10. Conference Proceedings. [COBISS.SI-ID 46916355]
 
KREN, Jan, MIKUŽ, Blaž, TISELJ, Iztok. Large eddy simulation of turbulent flow with different Prandtl numbers near uniformly heated wall. 29th International Conference Nuclear Energy for New Europe, Portorož, Slovenia, 2020 September 7-10. Conference Proceedings. [COBISS.SI-ID 46913539]
 
MIKUŽ, Blaž, ROELOFS, Ferry. Prediction of the flow and thermal field in a complete PWR fuel assembly using a reduced-resolution RANS. 29th International Conference Nuclear Energy for New Europe, Portorož, Slovenia, 2020 September 7-10. Conference Proceedings. [COBISS.SI-ID 46909699]  

MIKUŽ, Blaž, FREDERIX, Edo, KOMEN, Ed, TISELJ, Iztok. Taylor bubble behaviour in turbulent flow regime. Computational Fluid Dynamics for Nuclear Reactor Safety (CFD4NRS-8), Virtual workshop, 2020 November 25-27, Conference proceedings. [COBISS.SI-ID 39983619]

MIKUŽ, Blaž, KAMNIKAR, Jan, PROŠEK, Jakob, TISELJ, Iztok. Experimental observation of Taylor bubble disintegration in turbulent flow. 28th International Conference Nuclear Energy for New Europe, Portorož, Slovenia, 2019 September 9-12. Conference proceedings. [COBISS.SI-ID 33177127]

BASAVARAJ, Anil Kumar, MIKUŽ, Blaž, MATKOVIÄŒ, Marko. Flow and heat transfer CFD analysis in the section of THELMA for wall surface temperature determination. 28th International Conference Nuclear Energy for New Europe, Portorož, Slovenia, 2019 September 9-12. Conference proceedings. [COBISS.SI-ID 33176615]

MIKUŽ, Blaž, FREDERIX, Edo, M. A., TISELJ, Iztok, KOMEN, Ed. M. J. High-fidelity simulation of a Taylor bubble in co-current turbulent flow. V: 18th International Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-18), Portland, Oregon, US, August 18th-22nd 2019. [COBISS.SI-ID 32653095]

ROELOFS, F., UITSLAG-DOOLARD, H., MIKUŽ, B., DOVIZIO, D., DE SANTIS, D., SHAMS, A., BERTOCCHI, F., ROHDE, M., VAN TICHELEN, K., KEIJERS, S., KENNEDY, G., BATTA, A., PACIO, J., PLANQUART, P., OBABKO, A., BROCKMEYER, L., MERZARI, E., VAGHETTO, R., HASSAN, Y., LEONARD, D., MARTIN, M., JACKSON, B., STEER, M., DELCHINI, M., POINTER, D. CFD and Experiments for Wire-wrapped Fuel Assemblies. V: 18th International Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-18), Portland, Oregon, US, August 18th-22nd 2019. [COBISS.SI-ID 32796199]

FREDERIX, Edo, M. A., MIKUŽ, Blaž, KOMEN, Ed. M. J. LES of a taylor bubble in co-current turbulent pipe flow. V: DLES 12, Workshop Direct and Large Eddy Simulation, Madrid, Spain, June 5th-7th 2019. [Madrid: Universidad Carlos III]. [COBISS.SI-ID 32442663]

ROELOFS, Ferry, UITSLAG-DOOLAARD, Heleen, DOVIZIO Daniele, MIKUŽ, Blaž, SHAMS Afaque, BERTOCCHI Fulvio, ROHDE Martin, PACIO Julio, DI PIAZZA Ivan, KENNEDY Graham, VAN TICHELEN Katrien, OBABKO Alex, MERZARI Elia. Towards validated prediction with RANS CFD of flow and heat transport in a WIRE-wrap fuel assembly. V: SESAME Thermal Hydraulic International Workshop, Pettern, Netherlands, 19-21 Marc 2019. [COBISS.SI-ID 32226599]

DOVIZIO, Daniele, MIKUŽ, Blaž, SHAMS, Afaque, ROELOFS, Ferry. Validating RANS to predict the flow behavior in wire-wrapped fuel assemblies. V: SESAME Thermal Hydraulic International Workshop, Pettern, Netherlands, 19-21 Marc 2019. [COBISS.SI-ID 32227111

ROELOFS, Ferry, DOVIZIO, D., UITSLAG-DOOLAARD, H., MIKUŽ, Blaž, SHAMS, A. Validation of wire-wrapped fuel assembly CFD simulations. ANS 2018 Winter Meeting & Expo, Orlando, FL, 2018 November 11-15. [COBISS.SI-ID 31878183]

MATKOVIÄŒ, Marko, CIZELJ, Leon, KLJENAK, Ivo, KONÄŒAR, Boštjan, MIKUŽ, Blaž, SUŠNIK, Andrej, TISELJ, Iztok, ZAJEC, Boštjan. Building a unique test section for local critical heat flux studies in light water reactor : like accident conditions. 13th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (HEFAT2017), Portorož, Slovenia, 2017 July 17-19, 2017. [COBISS.SI-ID 30698791]

STEMPNIEWICZ, M. M., GEUS, E. A. R. de, MIKUŽ, Blaž, ROELOFS, Ferry. New model to simulate molten fuel systems with the spectra code. 17th International Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-17), X'ian, China, 2017 September 3-8. [COBISS.SI-ID 31608615]

MIKUŽ, Blaž, TISELJ, Iztok. Wall-resolved Large Eddy Simulation of secondary flow in grid-free fuel assembly. Computational Fluid Dynamics for Nuclear Reactor Safety (CFD4NRS-6), Cambridge, Massachusetts, USA, 2016 September 13-15. Conference proceedings. [COBISS.SI-ID 29775911]

MIKUŽ, Blaž, TISELJ, Iztok. Accurate Wall-Resolved Large Eddy Simulation of a Turbulent Flow in 5×5 Fuel Rod Bundle. 24th International Conference Nuclear Energy for New Europe, Portorož, Slovenia, 2015 September 14-17. Conference proceedings. [COBISS.SI-ID 29175591]

PROŠEK, Andrej, VOLKANOVSKI, Andrija, MIKUŽ, Blaž, TISELJ, Iztok. Status of CAMP activities in Slovenia. Fall 2014 CAMP Meeting, Bethesda, MD, USA, 2014 October 22-24. Conference proceedings. [COBISS.SI-ID 28066855]

MIKUŽ, Blaž, TISELJ, Iztok. Numerical simulations of a turbulent flow in a fuel assembly. 23rd International Conference Nuclear Energy for New Europe, Portorož, Slovenia, 2014 September 8-11. Conference proceedings. [COBISS.SI-ID 28325927]

MIKUŽ, Blaž, TISELJ, Iztok, BEYER Matthias. 1D Two-Fluid Model Simulations of Flashing Flows in TOPFLOW Facility. 22nd International Conference Nuclear Energy for New Europe, Bled, Slovenia, 2013 September 9-12. Conference proceedings. [COBISS.SI-ID 27357223]

MIKUŽ, Blaž, KOŠMRLJ, Samo, TISELJ, Iztok. OpenFOAM simulations of the turbulent flow in a rod bundle with mixing vanes. 21st International Conference Nuclear Energy for New Europe, Ljubljana, Slovenia, 2012 September 5-7. Conference proceedings.  [COBISS.SI-ID 26396455]

Celotni spisek objav vzdržuje COBISS

Scopus Author ID: 56502174200

ORCID ID: 0000-0002-9632-3933

 

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