High-speed Video Observations on Abrupt Elongations of the Positive End of Bidirectional Leader

Autor: Wu Bin, Lü Weitao, Qi Qi, Ma Ying, Chen Lüwen, Jiang Ruijiao

Publikováno v: 应用气象学报, Vol 31, Iss 2, Pp 146-155 (2020)

One of the most important advances in lightning physics research in recent decades is the introduction of the the bidirectional developmengt of leaders and its observation and verification, but this theory is not paid much attention until more and mo

Externí odkaz: https://doaj.org/article/999f75cf12234732aadb927e69484555

Analysis of multiphase flow simulations and comparison with high-speed video observations

Autor: Markus Bär, Stanislav Knotek, Sonja Schmelter, Marc Olbrich

Publikováno v: Measurement: Sensors, Vol 18, Iss, Pp 100154-(2021)

Computational fluid dynamics (CFD) can help to improve the metrological characterization of multiphase flows by giving insight into areas that are hardly accessible by experiments. In this paper, simulation results for seven different plug and slug f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7de55a26453540e6c17cc0652abde60
https://doi.org/10.1016/j.measen.2021.100154

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Experimental investigation and CFD validation of horizontal air/water slug flow

Autor: Vallee, C., Höhne, T.

Publikováno v: 15th International Conference on Nuclear Engineering (ICONE15), 22.-26.04.2007, Nagoya, JapanPaper ICONE15-10469
15th International Conference on Nuclear Engineering (ICONE15), 22.-26.04.2007, Nagoya, Japan

In different scenarios of small break Loss of Coolant Accident (SB-LOCA), stratified two-phase flow regimes can occur in the main cooling lines of pressurized water reactors. Because these flow patterns cannot be predicted with the required accuracy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::268cf6a5fcda89138609e6bc77bad397
https://www.hzdr.de/publications/Publ-9082-1

Experimental investigation and CFD simulation of horizontal stratified two-phase flow phenomena

Autor: Thomas Höhne, Christophe Vallée, Horst-Michael Prasser, Tobias Sühnel

Publikováno v: CFD4NRS-Benchmarking of CFD Codes for Application to Nuclear Reactor Safety, 05.-07.09.2006, Garching, München, Germany
Nuclear Engineering and Design 238(2008), 637-646
CFD4NRS-Benchmarking of CFD Codes for Application to Nuclear Reactor Safety, 05.-07.09.2006, Garching, München, GermanyPaper A6-31

For the investigation of stratified two-phase flow, two horizontal channels with rectangular cross-section were built at Forschungszentrum Dresden-Rossendorf (FZD). The channels allow the investigation of air/water co-current flows, especially the sl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4947ad1b901178cb6c56b438edbbcc3d
https://www.hzdr.de/publications/Publ-8080-2