@article{MTMT:34742505,
	title = {Statistical assessment of the concentration fluctuations in street canyons via time-resolved wind tunnel experiments},
	url = {https://m2.mtmt.hu/api/publication/34742505},
	author = {Papp, Bálint and Istók, Balázs and Koren, Márton and Balczó, Márton and Kristóf, Gergely},
	doi = {10.1016/j.jweia.2024.105665},
	journal-iso = {J WIND ENG IND AEROD},
	journal = {JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS},
	volume = {246},
	unique-id = {34742505},
	issn = {0167-6105},
	abstract = {Time-resolved wind tunnel experiments are performed for three periodic street canyon configurations: one of uniform (H/W = 1) and two of variable building height (consisting of 0.5H and 1.5H tall towers in aligned and staggered arrangements) for perpendicular wind direction. The velocity field is mapped using Laser Doppler Anemometry (LDA), and the tracer gas concentration is sampled using Fast Flame Ionization Detection (FFID). The concentration field is characterized by the mean concentration and the characteristic percentiles of the concentration-time series, such as the median and the peak, represented by the 99th percentile, in a total of 1138 sampling points. The probability distribution of the concentration in each point is modeled using the gamma distribution, which is fitted based on the mean and the variance of the measured time series. The results show that the mean pedestrian exposure to air pollutants is significantly lower in the case of heterogeneous roof height, although the mean concentration at the leeward corner of the source canyon can locally exceed those of the uniform street canyons for both tower arrangements of variable building height. Moreover, it is shown that the concentration peaks for both tower configurations can significantly exceed those of the uniform canyons case, especially near the sources. © 2024 The Authors},
	keywords = {Probability distributions; Time series; Classifiers; Gamma distribution; Gamma distribution; Air quality; Doppler effect; Anemometers; Roofs; CONCENTRATION FLUCTUATIONS; Wind tunnels; Urban air quality; Urban air quality; Non-uniform; Wind tunnel measurements; street canyon; street canyon; concentration fluctuation; Laser doppler anemometry; Laser Doppler velocimeters; flame ionization detection; Peak concentrations; Peak concentrations; Building height; Fast Flame Ionization Detection (FFID); Laser Doppler Anemometry (LDA); Non-uniform building height; Variable roof height; Wind tunnel measurement; Fast flame ionization detection; Laser dopple anemometry; Non-uniform building height; Variable roof height},
	year = {2024},
	eissn = {1872-8197},
	orcid-numbers = {Papp, Bálint/0000-0001-8043-5271; Istók, Balázs/0000-0002-0248-0074; Balczó, Márton/0000-0002-1273-3047; Kristóf, Gergely/0000-0001-7572-6875}
}

@inproceedings{MTMT:33113557,
	title = {Statistical assessment of the ventilation of street canyons based on time-resolved wind tunnel experiments},
	url = {https://m2.mtmt.hu/api/publication/33113557},
	author = {Papp, Bálint and Istók, Balázs and Koren, Márton and Balczó, Márton and Kristóf, Gergely},
	booktitle = {PHYSMOD 2022 - International Workshop on Physical Modeling of Flow and Dispersion Phenomena},
	unique-id = {33113557},
	year = {2022},
	pages = {143-155},
	orcid-numbers = {Papp, Bálint/0000-0001-8043-5271; Istók, Balázs/0000-0002-0248-0074; Balczó, Márton/0000-0002-1273-3047; Kristóf, Gergely/0000-0001-7572-6875}
}

@article{MTMT:31806292,
	title = {Measurement-driven Large Eddy Simulation of dispersion in street canyons of variable building height},
	url = {https://m2.mtmt.hu/api/publication/31806292},
	author = {Papp, Bálint and Kristóf, Gergely and Istók, Balázs and Koren, Márton and Balczó, Márton and Balogh, Miklós},
	doi = {10.1016/j.jweia.2020.104495},
	journal-iso = {J WIND ENG IND AEROD},
	journal = {JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS},
	volume = {211},
	unique-id = {31806292},
	issn = {0167-6105},
	year = {2021},
	eissn = {1872-8197},
	orcid-numbers = {Papp, Bálint/0000-0001-8043-5271; Kristóf, Gergely/0000-0001-7572-6875; Istók, Balázs/0000-0002-0248-0074; Balczó, Márton/0000-0002-1273-3047}
}

@article{MTMT:3121317,
	title = {Wind tunnel and computational fluid dynamics study of wind conditions in an urban square},
	url = {https://m2.mtmt.hu/api/publication/3121317},
	author = {Balczó, Márton and Tomor, András},
	journal-iso = {IDŐJÁRÁS},
	journal = {IDŐJÁRÁS / QUARTERLY JOURNAL OF THE HUNGARIAN METEOROLOGICAL SERVICE},
	volume = {120},
	unique-id = {3121317},
	issn = {0324-6329},
	abstract = {Recognizing the role of urban squares in city life, the paper focuses on wind conditions at squares, with the objective to understand the building-scale flow phenomena influencing the wind comfort of pedestrians and the dispersion of pollutants. Wind tunnel testing of a selected square has been carried out at two wind directions, as well as accompanying computational fluid dynamics (CFD) simulations were performed using the MISKAM microscale model. The high spatial resolution experimental and CFD data allowed the identification of flow structures, like separation bubbles, vortices, high-speed zones in and around the square. Based on the analysis of numerical and experimental data obtained, the MISKAM model is able to resolve the flow field in a complex urban setting with some limitations. In a second step, the model was then used to run further numerical simulations, to compare fully built-up areas to an area with a square, and to assess the influence of tree plantings on the square. Results regarding the latter indicate that below tree crown height, flow velocity and turbulent kinetic energy are both decreased by about one fourth due to the vegetation. It is also shown that the presence of the square increases wind speed in connecting streets and induces longitudinal flows even in streets perpendicular to the approaching wind direction. The time-resolved wind tunnel measurements also allowed presenting the local velocity statistics as wind roses. Using these, we identified locations with non-isotropic turbulence and alternating wind directions.},
	keywords = {VALIDATION; FLOW; simulation; AREA; SCALE; AIR-QUALITY; flow field; MISKAM; STREET CANYONS; pollutant dispersion; urban square; wind tunnel; urban vegetation; velocity fluctuation},
	year = {2016},
	eissn = {0324-6329},
	pages = {199-229},
	orcid-numbers = {Balczó, Márton/0000-0002-1273-3047; Tomor, András/0000-0002-0175-4678}
}

@inproceedings{MTMT:3106143,
	title = {Investigation of ventilation and air quality of urban squares},
	url = {https://m2.mtmt.hu/api/publication/3106143},
	author = {Balczó, Márton and Lajos, Tamás},
	booktitle = {17th International Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes},
	unique-id = {3106143},
	year = {2016},
	orcid-numbers = {Balczó, Márton/0000-0002-1273-3047}
}

@inproceedings{MTMT:3055314,
	title = {Design issues of a new wind tunnel laboratory for environmental and vehicle aerodynamics},
	url = {https://m2.mtmt.hu/api/publication/3055314},
	author = {Balczó, Márton},
	booktitle = {The Publications of the MultiScience - XXX. microCAD International Multidisciplinary Scientific Conference},
	doi = {10.26649/musci.2016.094},
	unique-id = {3055314},
	year = {2016},
	orcid-numbers = {Balczó, Márton/0000-0002-1273-3047}
}

@mastersthesis{MTMT:2944304,
	title = {Városi terek átszellőzésének és légszennyezettségének modellezése},
	url = {https://m2.mtmt.hu/api/publication/2944304},
	author = {Balczó, Márton},
	publisher = {Budapest University of Technology and Economics},
	unique-id = {2944304},
	year = {2015},
	orcid-numbers = {Balczó, Márton/0000-0002-1273-3047}
}

@article{MTMT:2895146,
	title = {Flow and Dispersion Phenomena in a Simplified Urban Square},
	url = {https://m2.mtmt.hu/api/publication/2895146},
	author = {Balczó, Márton and Lajos, Tamás},
	doi = {10.3311/PPci.7852},
	journal-iso = {PERIOD POLYTECH CIV ENG},
	journal = {PERIODICA POLYTECHNICA-CIVIL ENGINEERING},
	volume = {59},
	unique-id = {2895146},
	issn = {0553-6626},
	year = {2015},
	eissn = {1587-3773},
	pages = {347-360},
	orcid-numbers = {Balczó, Márton/0000-0002-1273-3047}
}

@article{MTMT:2778891,
	title = {Measuring and Modeling of Hazardous Weather Phenomena to Aviation Using the Hungarian Unmanned Meteorological Aircraft System (HUMAS)},
	url = {https://m2.mtmt.hu/api/publication/2778891},
	author = {Bottyán, Zsolt and Gyöngyösi, András Zénó and Wantuch, F and Tuba, Zoltán and Kurunczi, R and Kardos, P and Istenes, Zoltán and Weidinger, Tamás and Hadobács, K and Szabó, Z and Balczó, Márton and Varga, Árpád and Bíróné Kircsi, Andrea and Horváth, Gy},
	journal-iso = {IDŐJÁRÁS},
	journal = {IDŐJÁRÁS / QUARTERLY JOURNAL OF THE HUNGARIAN METEOROLOGICAL SERVICE},
	volume = {119},
	unique-id = {2778891},
	issn = {0324-6329},
	year = {2015},
	eissn = {0324-6329},
	pages = {307-335},
	orcid-numbers = {Bottyán, Zsolt/0000-0003-0729-2774; Tuba, Zoltán/0000-0002-0345-5292; Istenes, Zoltán/0000-0002-0169-4791; Weidinger, Tamás/0000-0001-7500-6579; Balczó, Márton/0000-0002-1273-3047}
}

@CONFERENCE{MTMT:31969198,
	title = {Updates on cost action ES1006. Evaluation, improvement and guidance for the use of local-scale emergency prediction and response tools for airborne hazards in built environments},
	url = {https://m2.mtmt.hu/api/publication/31969198},
	author = {Trini, Castelli S. and Leitl, B. and Baumann-Stanzer, K. and Reisin, T.G. and Armand, P. and Barmpas, F. and Balczó, Márton and Andronopoulos, S. and Jurcakova, K.},
	booktitle = {Proceedings of the 16th International Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes},
	unique-id = {31969198},
	abstract = {Updates on the results from COST Action ES1006 activity are presented and discussed. The main focus of the ES1006 Action is the evaluation of the airborne pollutant dispersion models, when applied for accidental or intentional releases in complex built environments, urban or industrial. The main achieved outcomes are introduced and briefly illustrated. More detailed and focused presentations go along with this general one, in order to discuss the most scientific and applicative results of the ES1006 COST Action},
	year = {2014},
	orcid-numbers = {Balczó, Márton/0000-0002-1273-3047}
}