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Št. zadetkov: 6
Predicting the total wall time of CFD simulations of single-compartment fires
Martin Veit, Andrea Lucherini, Georgios Maragkos, Bart Merci
Objavljeni znanstveni prispevek na konferenci
Oznake: simulacije;računalniška dinamika tekočin;simulator požarne dinamike;stenski čas;simulations;computational fluid dynamics;fire dynamics simulator;wall time;
The total wall time is often difficult to predict a priori in compartment fire simulations due to dynamic phenomena that can occur, e.g., flame extinction. The wall time is dependent on multiple physical factors in the simulation, along with simulation factors and the system used to compute the mode ...
Leto: 2024 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Video enhancement for increased spatio-temporal resolution in thermal videos
Martin Veit, Andrea Lucherini, Steven Verstockt, Bart Merci
Izvirni znanstveni članek
Oznake: obdelava slik;termovizijska kamera;strojno učenje;bazenski požar;image processing;thermal camera;machine learning;pool fire;
A spatio-temporal video enhancement of a small-scale pool fire is performed to address the typically low spatial resolution and frame rate of inexpensive infrared (IR) cameras. Improving image quality can increase the applicability of low-cost thermal cameras for certain research tasks and analyses. ...
Leto: 2026 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Full-scale experimental study on the critical Rayleigh number for the onset of internal natural convection inside a horizontal insulation layer of blown glass wool
Hicham Johra, Pierre Léard, Martin Veit, Rasmus Lund Jensen
Izvirni znanstveni članek
Oznake: notranja konvekcija;prenos toplote;porozen izolacijski material;poskusi v polnem merilu;internal convection;heat transfer;porous insulation material;full-scale experiments;
Glass wool is a common high-performance insulation material employed in buildings. The effective thermal conductivity of such materials with large open-pore structures can drastically increase if internal natural convection takes place inside the latter. This can occur in the case of a thick insulat ...
Leto: 2026 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Experimental investigations of internal macro-scale convection in the loose-fill wood fiber insulation layer of a full-scale wall element
Martin Veit, Hicham Johra, Nikolaj Rask, Simon M. Roesgaard, Rasmus Lund Jensen
Izvirni znanstveni članek
Oznake: thermal performance;internal convection;performance gap;insulation materials;
With increasing restrictions on the energy efficiency of buildings, thicker insulation layers are installed in new and refurbished buildings to reduce heat losses. Previous studies have indicated that internal macro-scale convection cells can occur in thick porous insulation layers, decreasing the t ...
Leto: 2026 Vir: Zavod za gradbeništvo Slovenije (ZAG)
50 years of gas-phase velocity measurements in fire science
Martin Veit, Andrea Lucherini, Friderik Knez, Rasmus Lund Jensen, Grunde Jomaas, Bart Merci
Izvirni znanstveni članek
Oznake: negotovost;plinska faza;hitrost zraka;diagnostika požara;uncertainty;gas-phase;air velocity;fire diagnostics;
The bidirectional velocity probe, developed by McCaffrey and Heskestad in 1976, remains one of the most widely used instruments for gas-phase velocity measurements in fire research. Despite its extensive use, the original calibration methodology lacks a rigorous uncertainty quantification, and subse ...
Leto: 2026 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Didaktična analiza učiteljeve priprave
Jelka Veit, Martin Kramar
Diplomsko delo
Oznake: pedagogika;učitelji;priprave;analiza;didaktika;pouk;cilji;vsebine;metode;diplomska dela;
V diplomskem delu raziskujemo, kakšno vlogo ima učiteljeva priprava na kvalitetno izveden pouk, kako učitelji načrtujejo pouk, kaj zajema učiteljeva priprava, čemu v pripravi namenjajo največjo pozornost. Zanimala nas je vloga didaktične analize v učiteljevi pripravi. Ugotavljali smo, v čem in zakaj ...
Leto: 2012 Vir: Filozofska fakulteta (UM FF)
Št. zadetkov: 6
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