Search Results - "Viegas, D.X."

Simulation of forest fire spread using a two-way coupling algorithm and its application to a real wildfire by Lopes, A.M.G., Ribeiro, L.M., Viegas, D.X., Raposo, J.R.

“…The incident wind velocity in a forest fire is one of the main factors affecting fire spread. Although buoyancy due to the fire heat release modifies the wind…”
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Fire weather risk assessment under climate change using a dynamical downscaling approach by Carvalho, A.C., Carvalho, A., Martins, H., Marques, C., Rocha, A., Borrego, C., Viegas, D.X., Miranda, A.I.

“…Results from general circulation models suggest that the increase of forest fire activity at the global scale will be one of the impacts of climate change. As…”
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Multiple eyes in the skies: architecture and perception issues in the COMETS unmanned air vehicles project by Ollero, A., Lacroix, S., Merino, L., Gancet, J., Wiklund, J., Remuss, V., Perez, I.V., Gutierrez, L.G., Viegas, D.X., Benitez, M.A.G., Mallet, A., Alami, R., Chatila, R., Hommel, G., Lechuga, F.J.C., Arrue, B.C., Ferruz, J., Martinez-De Dios, J.R., Caballero, F.

“…This paper describes the COMETS (Real-Time Coordination and Control of Multiple Heterogeneous Unmanned Aerial Vehicles) Project, which is aimed at designing…”
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Fire-fighting human health risks—The FUMEXP project by Ferreira, A.J, Cordeiro, C.R, Miranda, A.I, Viegas, D.X, Cruzeiro, C.D

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Atmospheric dynamics and fire-induced phenomena: Insights from a comprehensive analysis of the Sertã wildfire event by Menezes, I.C., Lopes, D., Fernandes, A.P., Borrego, C., Viegas, D.X., Miranda, A.I.

“…The Sertã wildfire started on October 15th, 2017, in a mountainous area in central Portugal, on the hottest day of an exceptionally dry month compared to the…”
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Full-scale measurements for evaluation of coal dust release from train wagons with two different shelter covers by Ferreira, A.D., Viegas, D.X., Sousa, A.C.M.

“…The paper describes a full-scale study performed to evaluate the amount of coal dust released by eolian erosion from partly covered train wagons over runs of…”
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Ignition/non-ignition phase transition: A new critical heat flux estimation method by Sabi, F.Z., Terrah, S.M., Mosbah, O., Dilem, A., Hamamousse, N., Sahila, A., Harrouz, O., Boutchiche, H., Chaib, F., Zekri, N., Kaiss, A., Clerc, J.-P., Giroud, F., Viegas, D.X.

“…Flaming ignition properties of dead and live thin wildland porous fuels submitted to different incident heat flux intensities are examined experimentally using…”
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Smoke emissions from biomass burning in a Mediterranean shrubland by Alves, C.A., Gonçalves, C., Pio, C.A., Mirante, F., Caseiro, A., Tarelho, L., Freitas, M.C., Viegas, D.X.

“…Gaseous and particulate samples from the smoke from prescribed burnings of a shrub-dominated forest with some pine trees in Lousã Mountain, Portugal, in May…”
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Active Barrier Combining Fire-Resistant Fiberglass Fabric and Water Sprinkler System for Protection Against Forest Fires by Viegas, C., Batista, R., Albino, A., Coelho, M., Andrade, J., Alves, D., Viegas, D. X.

“…In recent years, due to global warming, we have witnessed an increase in the occurrence of extreme forest fire events, with corresponding rise in human…”
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Near-source grid-based measurement of CO and PM2.5 concentration during a full-scale fire experiment in southern European shrubland by Amorim, J.H., Valente, J., Cascão, P., Ribeiro, L.M., Viegas, D.X., Ottmar, R., Miranda, A.I.

“…There is limited research on the exposure of wildland firefighters to smoke because of the operational obstacles when monitoring air pollutants in the field…”
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Nonexistence of critical fuel moisture content for flammability by Terrah, S.M., Sabi, F.Z., Mosbah, O., Dilem, A., Hamamousse, N., Sahila, A., Harrouz, O., Boutchiche, H., Chaib, F., Zekri, N., Kaiss, A., Clerc, J.-P., Giroud, F., Viegas, D.X.

“…The critical moisture of ignition is still a subject of extensive studies, and an endothermic/exothermic phase transition is expected to occur near the…”
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Modelling the effect of fire-exclusion and prescribed fire on wildfire size in Mediterranean ecosystems by Piñol, J., Beven, K., Viegas, D.X.

“…There is a debate on which factor, fuel accumulation or meteorological variability, is the fundamental control of the occurrence of large fires in…”
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Numerical and experimental simulation of the wind field in the EXPO '98 area by Ferreira, A.D, Sousa, A.C.M, Viegas, D.X

“…A numerical and experimental study was performed for the wind flow field in one area, comprising a group of several pavilions separated by passageways, of the…”
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FireStation — an integrated software system for the numerical simulation of fire spread on complex topography by Lopes, A.M.G., Cruz, M.G., Viegas, D.X.

“…A software system aimed at the simulation of fire spread over complex topography is presented. The software implements a semi-empirical model for fire rate of…”
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Effectiveness of fuel treatments in canyons by Viegas, D.X., Pita, L.P.C., Rossa, C.

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Fire intensity reduction in straw fuel beds treated with a long-term retardant by Àgueda, A., Pastor, E., Pérez, Y., Viegas, D.X., Planas, E.

“…The present paper reports fire intensity reduction factors in partially retardant-treated straw fuel beds. Propagation experiments were carried out in the…”
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Fireline rotation model by Viegas, D.X., Rossa, C., Oliveras, Imma, Piñol, Josep

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Prediction of building interference effects on pedestrian level comfort by Ferreira, A.D., Sousa, A.C.M., Viegas, D.X.

“…This paper presents results concerning the interference effect created by two auxiliary buildings located upstream of a recreation area comprising seven…”
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Analysis of accidents in 2005 fires in Portugal and Spain by Viegas, D.X., Rossa, C., Caballero, D., Pita, L.P.C., Palheiro, P.

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Experimental results of automatic fire detection and monitoring with UAVs by Martínez-de Dios, J.R., Merino, L., Caballero, F., Ollero, A., Viegas, D.X.

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