TY  - JOUR
AU  - Rončević, Vukašin
AU  - Živanović, Nikola
AU  - van Boxel, John H.
AU  - Iserloh, Thomas
AU  - Antić, Nevena
AU  - Ferreira, Carla Sofia Santos
AU  - Spasić, Marko
PY  - 2024
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1511
AB  - Dripping rainfall simulators (DRS) for soil research generate water drops with different types of drippers, but metal tubes are most commonly used, often in the form of hypodermic needles. However, scientific papers using dripping rainfall simulators are often incomplete in terms of data on hypodermic needle characteristics, as well as data on drops produced by hypodermic needles under different water pressures. This study determines which drop sizes and dripping speeds are generated by various hypodermic needles at different water pressures. For the purpose of this study, a dripping rainfall simulator was designed and constructed for laboratory use. Water drops were generated with 11 different needles, ranging in size from 16 G to 32 G (tube gauge number), at different water pressures. Measured water drop sizes ranged from 1.42 to 3.69 mm at a dripping speed between 10 and 360 drops per minute and water head from 14 to over 1970 mm. Measured drop sizes, supplemented with data from previous studies, provided information on the relation between drop sizes and the size of the hypodermic needles. Van Boxel's numerical model provided estimations of the fall velocity for different drop diameters and their kinetic energy for falling heights up to 11.5 m. The results of this research can be used to design dripping rainfall simulators for soil research.
T2  - Applied Sciences-Basel
T1  - Measurement of Water Drop Sizes Generated by a Dripping Rainfall Simulator with Drippers in the Form of Hypodermic Needles
IS  - 16
VL  - 14
DO  - 10.3390/app14166969
UR  - conv_1820
ER  - 

@article{
author = "Rončević, Vukašin and Živanović, Nikola and van Boxel, John H. and Iserloh, Thomas and Antić, Nevena and Ferreira, Carla Sofia Santos and Spasić, Marko",
year = "2024",
abstract = "Dripping rainfall simulators (DRS) for soil research generate water drops with different types of drippers, but metal tubes are most commonly used, often in the form of hypodermic needles. However, scientific papers using dripping rainfall simulators are often incomplete in terms of data on hypodermic needle characteristics, as well as data on drops produced by hypodermic needles under different water pressures. This study determines which drop sizes and dripping speeds are generated by various hypodermic needles at different water pressures. For the purpose of this study, a dripping rainfall simulator was designed and constructed for laboratory use. Water drops were generated with 11 different needles, ranging in size from 16 G to 32 G (tube gauge number), at different water pressures. Measured water drop sizes ranged from 1.42 to 3.69 mm at a dripping speed between 10 and 360 drops per minute and water head from 14 to over 1970 mm. Measured drop sizes, supplemented with data from previous studies, provided information on the relation between drop sizes and the size of the hypodermic needles. Van Boxel's numerical model provided estimations of the fall velocity for different drop diameters and their kinetic energy for falling heights up to 11.5 m. The results of this research can be used to design dripping rainfall simulators for soil research.",
journal = "Applied Sciences-Basel",
title = "Measurement of Water Drop Sizes Generated by a Dripping Rainfall Simulator with Drippers in the Form of Hypodermic Needles",
number = "16",
volume = "14",
doi = "10.3390/app14166969",
url = "conv_1820"
}

Rončević, V., Živanović, N., van Boxel, J. H., Iserloh, T., Antić, N., Ferreira, C. S. S.,& Spasić, M.. (2024). Measurement of Water Drop Sizes Generated by a Dripping Rainfall Simulator with Drippers in the Form of Hypodermic Needles. in Applied Sciences-Basel, 14(16).
https://doi.org/10.3390/app14166969
conv_1820

Rončević V, Živanović N, van Boxel JH, Iserloh T, Antić N, Ferreira CSS, Spasić M. Measurement of Water Drop Sizes Generated by a Dripping Rainfall Simulator with Drippers in the Form of Hypodermic Needles. in Applied Sciences-Basel. 2024;14(16).
doi:10.3390/app14166969
conv_1820 .

Rončević, Vukašin, Živanović, Nikola, van Boxel, John H., Iserloh, Thomas, Antić, Nevena, Ferreira, Carla Sofia Santos, Spasić, Marko, "Measurement of Water Drop Sizes Generated by a Dripping Rainfall Simulator with Drippers in the Form of Hypodermic Needles" in Applied Sciences-Basel, 14, no. 16 (2024),
https://doi.org/10.3390/app14166969 .,
conv_1820 .

TY  - JOUR
AU  - Rončević, Vukašin
AU  - Živanović, Nikola
AU  - van Boxel, John H.
AU  - Iserloh, Thomas
AU  - Strbac, Snežana
PY  - 2023
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1430
AB  - Rainfall simulators represent often-used equipment for soil research. Depending on their performance, they could be appropriate for some soil research or not. The aim of this research is to provide insight into the capabilities of existing dripping rainfall simulators (DRS) to mimic natural rainfall and the frequency of simulated rainfalls of certain characteristics, facilitate the selection of rain simulators that would best meet the needs of soil research and to reach a step closer to the standardization of rainfall simulators. DRS performance was analyzed integrally, for simulators with more than one dripper (DRS gt 1) and with one dripper (DRS=1). A statistical analysis was performed for the performance of the DRS, wetted area, drop size, rainfall intensity, duration and kinetic energy. The analysis showed that DRS can provide rainfall that corresponds to natural rainfall, except in terms of the drop size distribution and wetted area. However, usually there are more factors that do not correspond to natural rainfall, such as the median drop size, volume and kinetic energy. Metal and plastic tubes (MT and PT) as the most present dripper types showed a strong relation between the outer diameter (OD) and drop size, while the inner diameter (ID) relation was moderate-to-weak. However, when increasing the range of MT drippers, for diameter size, the relation significance becomes very strong for bouts ID and OD. With the increase in the ID of PT, the relation deviates from the logarithmic curve that represents all drippers together. The sizes of the drops generated by the drippers are mostly in the range between 2 and 6 mm, while the number of drops smaller than 2 mm is relatively small. The intensity and duration of the simulated rain can be successfully produced to match natural values, with the most frequently simulated short-term rainfall of a high intensity. Most simulations were conducted at a fall height of up to 2 m, and then their number gradually decreases as the height gets closer to 5 m. Most simulations (58.6%) occur in the range between 20-90% KE, then 33.0% in a range of 90-100%, with only 8.4% lower than 20% KE.
T2  - Water
T1  - Dripping Rainfall Simulators for Soil Research-Performance Review
IS  - 7
VL  - 15
DO  - 10.3390/w15071314
UR  - conv_1696
ER  - 

@article{
author = "Rončević, Vukašin and Živanović, Nikola and van Boxel, John H. and Iserloh, Thomas and Strbac, Snežana",
year = "2023",
abstract = "Rainfall simulators represent often-used equipment for soil research. Depending on their performance, they could be appropriate for some soil research or not. The aim of this research is to provide insight into the capabilities of existing dripping rainfall simulators (DRS) to mimic natural rainfall and the frequency of simulated rainfalls of certain characteristics, facilitate the selection of rain simulators that would best meet the needs of soil research and to reach a step closer to the standardization of rainfall simulators. DRS performance was analyzed integrally, for simulators with more than one dripper (DRS gt 1) and with one dripper (DRS=1). A statistical analysis was performed for the performance of the DRS, wetted area, drop size, rainfall intensity, duration and kinetic energy. The analysis showed that DRS can provide rainfall that corresponds to natural rainfall, except in terms of the drop size distribution and wetted area. However, usually there are more factors that do not correspond to natural rainfall, such as the median drop size, volume and kinetic energy. Metal and plastic tubes (MT and PT) as the most present dripper types showed a strong relation between the outer diameter (OD) and drop size, while the inner diameter (ID) relation was moderate-to-weak. However, when increasing the range of MT drippers, for diameter size, the relation significance becomes very strong for bouts ID and OD. With the increase in the ID of PT, the relation deviates from the logarithmic curve that represents all drippers together. The sizes of the drops generated by the drippers are mostly in the range between 2 and 6 mm, while the number of drops smaller than 2 mm is relatively small. The intensity and duration of the simulated rain can be successfully produced to match natural values, with the most frequently simulated short-term rainfall of a high intensity. Most simulations were conducted at a fall height of up to 2 m, and then their number gradually decreases as the height gets closer to 5 m. Most simulations (58.6%) occur in the range between 20-90% KE, then 33.0% in a range of 90-100%, with only 8.4% lower than 20% KE.",
journal = "Water",
title = "Dripping Rainfall Simulators for Soil Research-Performance Review",
number = "7",
volume = "15",
doi = "10.3390/w15071314",
url = "conv_1696"
}

Rončević, V., Živanović, N., van Boxel, J. H., Iserloh, T.,& Strbac, S.. (2023). Dripping Rainfall Simulators for Soil Research-Performance Review. in Water, 15(7).
https://doi.org/10.3390/w15071314
conv_1696

Rončević V, Živanović N, van Boxel JH, Iserloh T, Strbac S. Dripping Rainfall Simulators for Soil Research-Performance Review. in Water. 2023;15(7).
doi:10.3390/w15071314
conv_1696 .

Rončević, Vukašin, Živanović, Nikola, van Boxel, John H., Iserloh, Thomas, Strbac, Snežana, "Dripping Rainfall Simulators for Soil Research-Performance Review" in Water, 15, no. 7 (2023),
https://doi.org/10.3390/w15071314 .,
conv_1696 .

TY  - JOUR
AU  - Rončević, Vukašin
AU  - Živanović, Nikola
AU  - Ristić, Ratko
AU  - van Boxel, John H.
AU  - Kasanin-Grubin, Milica
PY  - 2022
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1297
AB  - Dripping rainfall simulators are important instruments in soil research. However, a large number of non-standardized simulators have been developed, making it difficult to combine and compare the results of different studies in which they were used. To overcome this problem, it is necessary to become familiar with the design and performances of the current rainfall simulators. A search has been conducted for scientific papers describing dripping rainfall simulators (DRS) and papers that are thematically related to the soil research using DRS. Simulator design analysis was performed integrally, for simulators with more than one dripper (DRS gt 1) and with one dripper (DRS=1). Descriptive and numerical data were extracted from the papers and sorted by proposed categories, according to which the types and subtypes of used simulators are determined. The six groups of elements that simulators could consist of have been determined, as well their characteristics, representation and statistical analyses of the available numerical parameters. The characteristics of simulators are analyzed and presented, facilitating the selection of simulators for future research. Description of future simulators in accordance to the basic groups of simulator elements should provide all data necessary for their easier replication and provide a step closer to the reduction of design diversification and standardization of rainfall simulators intended for soil research.
T2  - Water
T1  - Dripping Rainfall Simulators for Soil Research-Design Review
IS  - 20
VL  - 14
DO  - 10.3390/w14203309
UR  - conv_1664
ER  - 

@article{
author = "Rončević, Vukašin and Živanović, Nikola and Ristić, Ratko and van Boxel, John H. and Kasanin-Grubin, Milica",
year = "2022",
abstract = "Dripping rainfall simulators are important instruments in soil research. However, a large number of non-standardized simulators have been developed, making it difficult to combine and compare the results of different studies in which they were used. To overcome this problem, it is necessary to become familiar with the design and performances of the current rainfall simulators. A search has been conducted for scientific papers describing dripping rainfall simulators (DRS) and papers that are thematically related to the soil research using DRS. Simulator design analysis was performed integrally, for simulators with more than one dripper (DRS gt 1) and with one dripper (DRS=1). Descriptive and numerical data were extracted from the papers and sorted by proposed categories, according to which the types and subtypes of used simulators are determined. The six groups of elements that simulators could consist of have been determined, as well their characteristics, representation and statistical analyses of the available numerical parameters. The characteristics of simulators are analyzed and presented, facilitating the selection of simulators for future research. Description of future simulators in accordance to the basic groups of simulator elements should provide all data necessary for their easier replication and provide a step closer to the reduction of design diversification and standardization of rainfall simulators intended for soil research.",
journal = "Water",
title = "Dripping Rainfall Simulators for Soil Research-Design Review",
number = "20",
volume = "14",
doi = "10.3390/w14203309",
url = "conv_1664"
}

Rončević, V., Živanović, N., Ristić, R., van Boxel, J. H.,& Kasanin-Grubin, M.. (2022). Dripping Rainfall Simulators for Soil Research-Design Review. in Water, 14(20).
https://doi.org/10.3390/w14203309
conv_1664

Rončević V, Živanović N, Ristić R, van Boxel JH, Kasanin-Grubin M. Dripping Rainfall Simulators for Soil Research-Design Review. in Water. 2022;14(20).
doi:10.3390/w14203309
conv_1664 .

Rončević, Vukašin, Živanović, Nikola, Ristić, Ratko, van Boxel, John H., Kasanin-Grubin, Milica, "Dripping Rainfall Simulators for Soil Research-Design Review" in Water, 14, no. 20 (2022),
https://doi.org/10.3390/w14203309 .,
conv_1664 .