This website uses cookies (to show videos, interactive maps and to simplify content sharing with friends).
By viewing pages on this site you agree with the usage of cookies.
I agree / more information / I disagree

 
logo logo VisitorsPartnersMedia

Username: Password:

Dr. Matej Tekavčič from the Reactor Engineering Division at Jožef Stefan Institute in collaboration with researchers from the Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf (Germany) published the article »Validation of a morphology adaptive multi-field two-fluid model considering counter-current stratified flow with interfacial turbulence damping« in the journal Nuclear Engineering and Design.

The paper considers simulations of an isothermal counter-current stratified flow case in the channel of the WENKA (Water Entrainment Channel Karlsruhe) experiment using a morphology adaptive multi-field two-fluid modelling framework. To model the turbulent flow conditions near an interface, the modelling framework was extended with a turbulence damping model. Two turbulence damping strategies were investigated: symmetric, with damping in both phases, and asymmetric with damping only in the gas phase.

The comparison shows that the asymmetric approach offers improved prediction of turbulent kinetic energy on the liquid side of the interface, but with a cost of diminished accuracy of the predicted velocity profiles on the gas side.

NEWS
Young researcher Aljoša Gajšek was awarded EUROfusion Engineering Grant
The EUROfusion Engineering Grant (EEG) was awarded to 16 candidates from a wide range of 55 different competence areas, interesting for development of fusion technologies. The EEG was also awarded to young researcher Aljoša Gajšek from th...
EMUG meeting
Previous week, between April 12 and 14, the EMUG (European MELCOR and MACCS User Group) meeting was held in Slovenia, organized by the Reactor Engineering Division, JSI in cooperation with the Paul Scherrer Institute from Switzerland. The meeting was a...
Grain boundary stresses in elastic materials
Grain boundary stresses in elastic materials Dr. Samir El Shawish and dr. Timon Mede from the Reactor Engineering Division at Jožef Stefan Institute published an article “Grain boundary stresses in elastic materials&rdqu...
Joint European Torus (JET) device released a record 59 MJ of sustained fusion energy
Researchers from the EUROfusion consortium, including JSI researchers, used the Joint European Torus (JET) device to release a record 59 MJ of sustained fusion energy. The breakt...
Turbulent Flow over Confined Backward-Facing Step: PIV vs. DN
Boštjan Zajec, Marko Matkovič, Nejc Kosanič, Jure Oder, Blaž Mikuž, Jan Kren and Iztok Tiselj from the Reactor Engineering Division at Jožef Stefan Institute published the article “Turbul...
Prof. dr. Leon Cizelj elected as the president of the European Nuclear Society (ENS)
Prof. dr. Leon Cizelj was elected as the president of the European Nuclear Society (ENS; www.euronuclear.org) for 2022 and 2023 at the proposal of the Nuclear Society of Slo...
New experimental campaign - Investigation of Temperature Fluctuations in a Fully Developed Channel Flow
New experimental campaign - Investigation of Temperature Fluctuations in a Fully Developed Channel Flow Dr. Mohit Sharma and colleagues have performed turbulent heat transfer experiments with the heated thin fo...
A single grain boundary parameter to characterize normal stress fluctuations in materials with elastic cubic grains
Dr. Samir El Shawish and dr. Timon Mede from the Reactor Engineering Division at Jožef Stefan Institute, in collaboration with dr. Jeremy Hure from Université Paris-Saclay, CEA (France) published the article &l...
Modelling of premixed layer formation in stratified fuel–coolant configuration
Janez Kokalj, dr. Mitja Uršič and dr. Matjaž Leskovar from the Reactor Engineering Division at Jožef Stefan Institute published the article »...
Validation of a morphology adaptive multi-field two-fluid model considering counter-current stratified flow with interfacial turbulence damping
Dr. Matej Tekavčič from the Reactor Engineering Division at Jožef Stefan Institute in collaboration with researchers from the Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf (Germany) published the article »...
mobile view