Ivo Kljenak

Senior research associate
PhD

Jožef Stefan Institute
Jamova cesta 39
SI-1000 Ljubljana
Slovenia

Phone: +386 1 5885 332
Fax: +386 1 5885 377
E-mail: ivo.kljenak@ijs.si

Current research interests

• Hydrogen combustion in large-scale facilities
• Atmosphere mixing in large vessels
• Modelling of upward churn-turbulent flow

Education

• Ecole privee Chevreul (Tunis, Tunisia, 1968-1972)
• O.Š. Slobodan Princip-Seljo (Belgrade, Yugoslavia, 1972-1975)
• Lycee Jean-Baptiste Say (Paris, France, 1975-1979)
• Mathematiques Superieures, Lycee Jean-Baptiste Say, and University Paris XI Orsay (1979-1980)
• Faculty of Mechanical Engineering, University of Ljubljana: BSc (1984), MSc (1988), PhD (1992)

Teaching

• Nuclear thermal hydraulics (asst.prof., Faculty of mathematics and physics, University of Ljubljana)

Professional experience

• 1984-1994: Faculty of mechanical enginering, University of Ljubljana
• 1995-present: Jožef Stefan Institute

Management experience

• Severe Accident Research Network of Excellence (SARNET, 2004-2008): leader of sub-work package Containment Atmosphere Mixing
• Severe Accident Research Network of Excellence 2 (SARNET2, 2009-2013): leader of work package Containment
• Leader of slovenian research projects
• Leader of CEA-Slovenia research projects

Selected publications

The full list of publications is maintained by COBISS. Links to publications use the Digital Object Identifier System DOI.

Chapter in book

KLJENAK, Ivo, BENTAIB, Ahmed, JORDAN, Thomas. Hydrogen behavior and control in severe accidents. Nuclear safety in light water reactors: severe accident phenomenology, B.R. Sehgal (Ed.), Elsevier/Academic Press, pp. 186-227, 2012.

Articles in SCI journals

KLJENAK, Ivo, KUZNETSOV, Mikhail, MANZINI, Giovanni, KOSTKA, Pál, KUBIŠOVA, Lubica, POVILAITIS, Mantas. Simulation of hydrogen deflagration experiment - Benchmark exercise with lumped-parameter codes. Nuclear Engineering and Design, vol. 283, pp. 51-59, 2015.

KLJENAK, Ivo, MAVKO, Borut. Simulation of containment thermal-hydraulics in the Marviken Blowdown 16 experiment with ASTEC and CONTAIN codes. Nuclear Engineering and Design, vol. 241, pp. 1063-1070, 2011.

KLJENAK, Ivo, DAPPER, Maik, DIENSTBIER, JiÅ™í, HERRANZ, Luis E., KOCH, Marko K., FONTANET, Joan. Thermal-hydraulic and aerosol containment phenomena modelling in ASTEC severe accident computer code. Nuclear Engineering and Design, vol. 240, pp. 656-667, 2010.

BABIĆ, Miroslav, KLJENAK, Ivo, MAVKO, Borut. Simulations of TOSQAN containment spray tests with combined Eulerian CFD and droplet-tracking modelling. Nuclear Engineering and Design, vol. 239, pp. 708-721, 2009.

BABIĆ, Miroslav, KLJENAK, Ivo, MAVKO, Borut. Prediction of light gas distribution in experimental containment facilities using the CFX4 code. Nuclear Engineering and Design, vol. 238, pp. 538-550, 2008.

KLJENAK, Ivo, MAVKO, Borut. Simulation of void fraction profile evolution in subcooled nucleate boiling flow in a vertical annulus using a bubble-tracking approach. Heat and Mass Transfer, vol. 42, pp. 552-561, 2006.

KLJENAK, Ivo, BABIĆ, Miroslav, MAVKO, Borut, BAJSIČ, Ivan. Modeling of containment atmosphere mixing and stratification experiment using a CFD approach. Nuclear Engineering and Design, vol. 236, pp. 1682-1692, 2006.

KONÄŒAR, Boštjan, KLJENAK, Ivo, MAVKO, Borut. Modelling of local two-phase flow parameters in upward subcooled flow boiling at low pressure. Int. J. Heat Mass Transfer, vol. 47, pp. 1499-1513, 2004.

HORVAT, Andrej, KLJENAK, Ivo, MARN, Jure. Two-dimensional large-eddy simulation of turbulent natural convection due to internal heat generation. Int. J. Heat Mass Transfer, vol. 44, pp. 3985-3995, 2001,

HORVAT, Andrej, KLJENAK, Ivo, MARN, Jure. On incompressible buoyancy flow benchmarking. Numerical Heat Transfer. Part B, Fundamentals, vol. 39, pp. 61-78, 2001.

JORDAN, Romana, MAVKO, Borut, KLJENAK, Ivo. Component reliability assessment using quantitative and qualitative data. Reliability Engineering & Systems Safety, vol. 71, pp. 81-95, 2001.

ŽUN, Iztok, KLJENAK, Ivo, MOŽE, Slavko. Space-time evolution of the nonhomogeneous bubble distribution in upward flow. Int. J. Multiphase Flow, vol. 19, pp. 151-172, 1993.