TY  - JOUR
AU  - Perić, Bojan
AU  - Simonović, Aleksandar
AU  - Vorkapić, Miloš
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3898
AB  - The purpose of this paper is to explore and define an adequate numerical
setting for the computation of aerodynamic performances of wind turbines of
various shapes and sizes, which offers the possibility of choosing a suitable
approach of minimal complexity for the future research. Here, mechanical
power, thrust, power coefficient, thrust coefficient, pressure coefficient,
pressure distribution along the blade, relative velocity contoure at different
wind speeds and streamlines were considered by two different methods: the
blade element momentum (BEM) and computational fluid dynamics (CFD),
within which three different turbulence models were analyzed. The
estimation of the mentioned aerodynamic performances was carried out on
two different wind turbine blades. The obtained solutions were compared
with the experimental and nominal (up-scaled) values, available in the
literature. Although the flow was considered as steady, a satisfactory
correlation between numerical and experimental results was achieved. The
comparison between results also showed, the significance of selection,
regarding the complexity and geometry of the analyzed wind turbine blade,
the most appropriate numerical approach for computation of aerodynamic
performances.
PB  - Institut za nuklearne nauke “Vinča” - Društvo termičara Srbije
T2  - Thermal Science
T1  - Comparative analysis of numerical computational techniques for determination of the wind turbine aerodynamic performances
VL  - 25
IS  - 4
SP  - 2503
EP  - 2515
DO  - 10.2298/TSCI200216175P
ER  - 

@article{
author = "Perić, Bojan and Simonović, Aleksandar and Vorkapić, Miloš",
year = "2021",
abstract = "The purpose of this paper is to explore and define an adequate numerical
setting for the computation of aerodynamic performances of wind turbines of
various shapes and sizes, which offers the possibility of choosing a suitable
approach of minimal complexity for the future research. Here, mechanical
power, thrust, power coefficient, thrust coefficient, pressure coefficient,
pressure distribution along the blade, relative velocity contoure at different
wind speeds and streamlines were considered by two different methods: the
blade element momentum (BEM) and computational fluid dynamics (CFD),
within which three different turbulence models were analyzed. The
estimation of the mentioned aerodynamic performances was carried out on
two different wind turbine blades. The obtained solutions were compared
with the experimental and nominal (up-scaled) values, available in the
literature. Although the flow was considered as steady, a satisfactory
correlation between numerical and experimental results was achieved. The
comparison between results also showed, the significance of selection,
regarding the complexity and geometry of the analyzed wind turbine blade,
the most appropriate numerical approach for computation of aerodynamic
performances.",
publisher = "Institut za nuklearne nauke “Vinča” - Društvo termičara Srbije",
journal = "Thermal Science",
title = "Comparative analysis of numerical computational techniques for determination of the wind turbine aerodynamic performances",
volume = "25",
number = "4",
pages = "2503-2515",
doi = "10.2298/TSCI200216175P"
}

Perić, B., Simonović, A.,& Vorkapić, M.. (2021). Comparative analysis of numerical computational techniques for determination of the wind turbine aerodynamic performances. in Thermal Science
Institut za nuklearne nauke “Vinča” - Društvo termičara Srbije., 25(4), 2503-2515.
https://doi.org/10.2298/TSCI200216175P

Perić B, Simonović A, Vorkapić M. Comparative analysis of numerical computational techniques for determination of the wind turbine aerodynamic performances. in Thermal Science. 2021;25(4):2503-2515.
doi:10.2298/TSCI200216175P .

Perić, Bojan, Simonović, Aleksandar, Vorkapić, Miloš, "Comparative analysis of numerical computational techniques for determination of the wind turbine aerodynamic performances" in Thermal Science, 25, no. 4 (2021):2503-2515,
https://doi.org/10.2298/TSCI200216175P . .

TY  - JOUR
AU  - Baltić, Marija
AU  - Svorcan, Jelena
AU  - Perić, Bojan
AU  - Vorkapić, Miloš
AU  - Ivanov, Toni
AU  - Peković, Ognjen
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2997
AB  - In order to investigate both static and dynamic characteristics of composite plates and validate a contemporary, non-invasive experimental technique a comparative experimental and numerical analysis was performed. Three, geometrically the same but different in ply orientation, carbon-epoxy laminates were tested in both healthy and damaged conditions. Damages were inflicted in a shape of horizontal crack. Experiments and numerical simulations were performed by digital image correlation (DIC) and finite element method (FEM), respectively. Obtained time-responses of the tested structures were fast Fourier transformed (FFT) to frequency domain for a clearer
understanding of natural frequencies and oscillation modes. Results are presented in tabular and graphical form. The overall correspondence of two sets of structural displacements is satisfactory. Some discrepancies might be contributed to the idealized geometry and restraint consideration. Also, due to the fast damping of higher tones, the errors in determining higher natural frequencies increase but still remain in 5 % range.
PB  - Springer
T2  - Journal of Mechanical Science and Technology
T1  - Comparative numerical and experimental investigation of static and dynamic characteristics of composite plates
VL  - 33
IS  - 6
SP  - 2597
EP  - 2603
DO  - 10.1007/s12206-019-0507-7
ER  - 

@article{
author = "Baltić, Marija and Svorcan, Jelena and Perić, Bojan and Vorkapić, Miloš and Ivanov, Toni and Peković, Ognjen",
year = "2019",
abstract = "In order to investigate both static and dynamic characteristics of composite plates and validate a contemporary, non-invasive experimental technique a comparative experimental and numerical analysis was performed. Three, geometrically the same but different in ply orientation, carbon-epoxy laminates were tested in both healthy and damaged conditions. Damages were inflicted in a shape of horizontal crack. Experiments and numerical simulations were performed by digital image correlation (DIC) and finite element method (FEM), respectively. Obtained time-responses of the tested structures were fast Fourier transformed (FFT) to frequency domain for a clearer
understanding of natural frequencies and oscillation modes. Results are presented in tabular and graphical form. The overall correspondence of two sets of structural displacements is satisfactory. Some discrepancies might be contributed to the idealized geometry and restraint consideration. Also, due to the fast damping of higher tones, the errors in determining higher natural frequencies increase but still remain in 5 % range.",
publisher = "Springer",
journal = "Journal of Mechanical Science and Technology",
title = "Comparative numerical and experimental investigation of static and dynamic characteristics of composite plates",
volume = "33",
number = "6",
pages = "2597-2603",
doi = "10.1007/s12206-019-0507-7"
}

Baltić, M., Svorcan, J., Perić, B., Vorkapić, M., Ivanov, T.,& Peković, O.. (2019). Comparative numerical and experimental investigation of static and dynamic characteristics of composite plates. in Journal of Mechanical Science and Technology
Springer., 33(6), 2597-2603.
https://doi.org/10.1007/s12206-019-0507-7

Baltić M, Svorcan J, Perić B, Vorkapić M, Ivanov T, Peković O. Comparative numerical and experimental investigation of static and dynamic characteristics of composite plates. in Journal of Mechanical Science and Technology. 2019;33(6):2597-2603.
doi:10.1007/s12206-019-0507-7 .

Baltić, Marija, Svorcan, Jelena, Perić, Bojan, Vorkapić, Miloš, Ivanov, Toni, Peković, Ognjen, "Comparative numerical and experimental investigation of static and dynamic characteristics of composite plates" in Journal of Mechanical Science and Technology, 33, no. 6 (2019):2597-2603,
https://doi.org/10.1007/s12206-019-0507-7 . .

TY  - CONF
AU  - Perić, Bojan
AU  - Simonović, Aleksandar
AU  - Kovačević, Aleksandar
AU  - Tanović, Dragoljub
AU  - Vorkapić, Miloš
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3913
AB  - The increasing size of wind turbine blades leads to various flow phenomena which are
influenced by aerodynamic design of blade. Detailed information of flow separation and wake
development are important for wind turbine blade designers to optimize blade design. In order to
obtain detailed information on the flow field, CFD (computational fluid dynamics) modeling is
the topic in many research studies.
In this paper aerodynamic analysis of the reference DTU 10 MW HAWT rotor using finite
volume method was done. Numerical simulations are realized in a commercial software package
ANSYS FLUENT. Flow field is modeled by Reynolds Averaged Navier-Stokes (RANS)
equations using transition SST viscous model. The pressure-based SIMPLEC pressure-velocity
coupling and 2nd order spatial discretization schemes were used for calculation. Obtained
numerical results for mechanical power, power coefficient, thrust, thrust coefficient, pressure
coefficient and relative velocity contours at rated wind speed were considered. The results were
compared with the reference results and conclusions were derived.
PB  - Belgrade, Serbia : Serbian Society of Mechanics
C3  - Proceedings of 7th International Congress of Serbian Society of Mechanics
T1  - Numerical analysis of aerodynamic performance of offshore wind turbine
SP  - 1
EP  - 8
UR  - https://hdl.handle.net/21.15107/rcub_cer_3913
ER  - 

@conference{
author = "Perić, Bojan and Simonović, Aleksandar and Kovačević, Aleksandar and Tanović, Dragoljub and Vorkapić, Miloš",
year = "2019",
abstract = "The increasing size of wind turbine blades leads to various flow phenomena which are
influenced by aerodynamic design of blade. Detailed information of flow separation and wake
development are important for wind turbine blade designers to optimize blade design. In order to
obtain detailed information on the flow field, CFD (computational fluid dynamics) modeling is
the topic in many research studies.
In this paper aerodynamic analysis of the reference DTU 10 MW HAWT rotor using finite
volume method was done. Numerical simulations are realized in a commercial software package
ANSYS FLUENT. Flow field is modeled by Reynolds Averaged Navier-Stokes (RANS)
equations using transition SST viscous model. The pressure-based SIMPLEC pressure-velocity
coupling and 2nd order spatial discretization schemes were used for calculation. Obtained
numerical results for mechanical power, power coefficient, thrust, thrust coefficient, pressure
coefficient and relative velocity contours at rated wind speed were considered. The results were
compared with the reference results and conclusions were derived.",
publisher = "Belgrade, Serbia : Serbian Society of Mechanics",
journal = "Proceedings of 7th International Congress of Serbian Society of Mechanics",
title = "Numerical analysis of aerodynamic performance of offshore wind turbine",
pages = "1-8",
url = "https://hdl.handle.net/21.15107/rcub_cer_3913"
}

Perić, B., Simonović, A., Kovačević, A., Tanović, D.,& Vorkapić, M.. (2019). Numerical analysis of aerodynamic performance of offshore wind turbine. in Proceedings of 7th International Congress of Serbian Society of Mechanics
Belgrade, Serbia : Serbian Society of Mechanics., 1-8.
https://hdl.handle.net/21.15107/rcub_cer_3913

Perić B, Simonović A, Kovačević A, Tanović D, Vorkapić M. Numerical analysis of aerodynamic performance of offshore wind turbine. in Proceedings of 7th International Congress of Serbian Society of Mechanics. 2019;:1-8.
https://hdl.handle.net/21.15107/rcub_cer_3913 .

Perić, Bojan, Simonović, Aleksandar, Kovačević, Aleksandar, Tanović, Dragoljub, Vorkapić, Miloš, "Numerical analysis of aerodynamic performance of offshore wind turbine" in Proceedings of 7th International Congress of Serbian Society of Mechanics (2019):1-8,
https://hdl.handle.net/21.15107/rcub_cer_3913 .

TY  - CONF
AU  - Đorđević, Dejan
AU  - Perić, Bojan
AU  - Vorkapić, Miloš
AU  - Ćoćkalo, Dragan
PY  - 2018
UR  - http://ie.mas.bg.ac.rs/sie2018/
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3910
AB  - By definition, the risk represents suspense in relation to the desired outcomes. According to that, this project includes the algorithm which with the help of the tool CAD/CAM provides step analysis in the process of projecting to realization of the finished product. As well, algorithm points out the possible risks when presenting element or finished product.
PB  - University of Belgrade, Faculty of Mechanical Engineering
C3  - Proceedings of 7th International Symposium on Industrial Engineering SIE 2018
T1  - CAD/CAM tools in risk analysis during designing process
SP  - 62
EP  - 65
UR  - https://hdl.handle.net/21.15107/rcub_cer_3910
ER  - 

@conference{
author = "Đorđević, Dejan and Perić, Bojan and Vorkapić, Miloš and Ćoćkalo, Dragan",
year = "2018",
abstract = "By definition, the risk represents suspense in relation to the desired outcomes. According to that, this project includes the algorithm which with the help of the tool CAD/CAM provides step analysis in the process of projecting to realization of the finished product. As well, algorithm points out the possible risks when presenting element or finished product.",
publisher = "University of Belgrade, Faculty of Mechanical Engineering",
journal = "Proceedings of 7th International Symposium on Industrial Engineering SIE 2018",
title = "CAD/CAM tools in risk analysis during designing process",
pages = "62-65",
url = "https://hdl.handle.net/21.15107/rcub_cer_3910"
}

Đorđević, D., Perić, B., Vorkapić, M.,& Ćoćkalo, D.. (2018). CAD/CAM tools in risk analysis during designing process. in Proceedings of 7th International Symposium on Industrial Engineering SIE 2018
University of Belgrade, Faculty of Mechanical Engineering., 62-65.
https://hdl.handle.net/21.15107/rcub_cer_3910

Đorđević D, Perić B, Vorkapić M, Ćoćkalo D. CAD/CAM tools in risk analysis during designing process. in Proceedings of 7th International Symposium on Industrial Engineering SIE 2018. 2018;:62-65.
https://hdl.handle.net/21.15107/rcub_cer_3910 .

Đorđević, Dejan, Perić, Bojan, Vorkapić, Miloš, Ćoćkalo, Dragan, "CAD/CAM tools in risk analysis during designing process" in Proceedings of 7th International Symposium on Industrial Engineering SIE 2018 (2018):62-65,
https://hdl.handle.net/21.15107/rcub_cer_3910 .

TY  - CONF
AU  - Perić, Bojan
AU  - Simonović, Aleksandar
AU  - Stupar, Slobodan
AU  - Vorkapić, Miloš
AU  - Svorcan, Jelena
AU  - Peković, Ognjen
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3917
AB  - Metal membranes are the thin circular plates. For transducers and pressure transmitters, it is
assumed that the membrane is loaded with uniform load over the entire surface. In case that the membrane is
rigid over the edge, then it is called a diaphragm. In general, the membranes are divided into flat and
corrugated. Corrugated diaphragms can resist much higher pressure than flat diaphragms and they are used
mainly in the low pressure area. In contact with various aggressive fluids, membranes are most commonly
made of high alloy austenitic steel, which have high corrosion resistance, have good spring properties and
they are stable at different temperatures. The deflection analyses of corrugated diaphragms are very important
in sensitivity of transducers/transmitters. The application of corrugated diaphragms gives possibility to control
sensitivity of thin diaphragms by geometrical parameters. In this paper numerical and experimental structural
analysis of a thin corrugated diaphragm 19 mm diameter, with variable material thickness and corrugation
number is presented. Experimental tests are conducted on a corrugated stainless steel (AISI 316) diaphragm.
The measured deflections are compared with numerical results in ANSYS software package. The results
showed small deviations between numerical and experimental data, which is very important for further
diaphragm application of measurement instruments.
PB  - Faculty of Engineering, University of Rijeka, Croatia
C3  - International Conference on Innovative Technologies IN-TECH 2018, September 5-7, 2018, Zagreb, Croatia
T1  - Numerical analysis of stainless steel diaphragm for low pressure measurement
SP  - 125
EP  - 128
UR  - https://hdl.handle.net/21.15107/rcub_cer_3917
ER  - 

@conference{
author = "Perić, Bojan and Simonović, Aleksandar and Stupar, Slobodan and Vorkapić, Miloš and Svorcan, Jelena and Peković, Ognjen",
year = "2018",
abstract = "Metal membranes are the thin circular plates. For transducers and pressure transmitters, it is
assumed that the membrane is loaded with uniform load over the entire surface. In case that the membrane is
rigid over the edge, then it is called a diaphragm. In general, the membranes are divided into flat and
corrugated. Corrugated diaphragms can resist much higher pressure than flat diaphragms and they are used
mainly in the low pressure area. In contact with various aggressive fluids, membranes are most commonly
made of high alloy austenitic steel, which have high corrosion resistance, have good spring properties and
they are stable at different temperatures. The deflection analyses of corrugated diaphragms are very important
in sensitivity of transducers/transmitters. The application of corrugated diaphragms gives possibility to control
sensitivity of thin diaphragms by geometrical parameters. In this paper numerical and experimental structural
analysis of a thin corrugated diaphragm 19 mm diameter, with variable material thickness and corrugation
number is presented. Experimental tests are conducted on a corrugated stainless steel (AISI 316) diaphragm.
The measured deflections are compared with numerical results in ANSYS software package. The results
showed small deviations between numerical and experimental data, which is very important for further
diaphragm application of measurement instruments.",
publisher = "Faculty of Engineering, University of Rijeka, Croatia",
journal = "International Conference on Innovative Technologies IN-TECH 2018, September 5-7, 2018, Zagreb, Croatia",
title = "Numerical analysis of stainless steel diaphragm for low pressure measurement",
pages = "125-128",
url = "https://hdl.handle.net/21.15107/rcub_cer_3917"
}

Perić, B., Simonović, A., Stupar, S., Vorkapić, M., Svorcan, J.,& Peković, O.. (2018). Numerical analysis of stainless steel diaphragm for low pressure measurement. in International Conference on Innovative Technologies IN-TECH 2018, September 5-7, 2018, Zagreb, Croatia
Faculty of Engineering, University of Rijeka, Croatia., 125-128.
https://hdl.handle.net/21.15107/rcub_cer_3917

Perić B, Simonović A, Stupar S, Vorkapić M, Svorcan J, Peković O. Numerical analysis of stainless steel diaphragm for low pressure measurement. in International Conference on Innovative Technologies IN-TECH 2018, September 5-7, 2018, Zagreb, Croatia. 2018;:125-128.
https://hdl.handle.net/21.15107/rcub_cer_3917 .

Perić, Bojan, Simonović, Aleksandar, Stupar, Slobodan, Vorkapić, Miloš, Svorcan, Jelena, Peković, Ognjen, "Numerical analysis of stainless steel diaphragm for low pressure measurement" in International Conference on Innovative Technologies IN-TECH 2018, September 5-7, 2018, Zagreb, Croatia (2018):125-128,
https://hdl.handle.net/21.15107/rcub_cer_3917 .