Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods
Abstract
Different applications of a variable area convergent-divergent nozzle are found in various parts of the industry. This paper presents the development of a new design methodology for a variable area convergent-divergent nozzle, to maintain constant nozzle area ratio for different values of mass flow rates. The validation of the presented model was carried out on an example supersonic ejector using experimental, numerical and analytical data. Analytical (one dimensional) and computational fluid dynamics models showed satisfactory prediction performance in comparison with the experiment. The average entrainment ratio error was between 10% and 7%, respectively. Results confirmed that the velocity of the primary fluid at the nozzle outlet is in accordance with the one dimensional analysis. Although disturbances (strong and weak shock waves) are visible, their effects are negligible. Also, supersonic ejector performances are presented through relations between entrainment ratio, outlet press...ure and spindle position. Disadvantages of variable area nozzle utilization in ejector applications are emphasized.
Keywords:
Variable area nozzle / Numerical modeling / Experimental study / Ejector / Convergent-divergent nozzleSource:
Applied Mathematical Modelling, 2018, 57, 206-225Publisher:
- Elsevier Science Inc, New York
Funding / projects:
- Research and Development of Advanced Design Approaches for High Performance Composite Rotor Blades (RS-MESTD-Technological Development (TD or TR)-35035)
- Application of Novel Measurement and Computational Techniques on Investigation of Air Flow in Ventilation Systems of Energy Extremely Efficient (“Passive”) Buildings (RS-MESTD-Technological Development (TD or TR)-35046)
- Development and application of methods and laboratory equipment intended for conformity assessment of technical products (RS-MESTD-Technological Development (TD or TR)-35031)
- Pressure equipment integrity under simultaneous effect of fatigue loading and temperature (RS-MESTD-Technological Development (TD or TR)-35011)
- Methods of Numerical and Nonlinear Analysis with Applications (RS-MESTD-Basic Research (BR or ON)-174002)
DOI: 10.1016/j.apm.2018.01.016
ISSN: 0307-904X
WoS: 000427219000013
Scopus: 2-s2.0-85042111674
Collections
Institution/Community
Mašinski fakultetTY - JOUR AU - Petrović, Andrija AU - Svorcan, Jelena AU - Pejčev, Aleksandar AU - Radenković, Darko AU - Petrović, Aleksandar PY - 2018 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2930 AB - Different applications of a variable area convergent-divergent nozzle are found in various parts of the industry. This paper presents the development of a new design methodology for a variable area convergent-divergent nozzle, to maintain constant nozzle area ratio for different values of mass flow rates. The validation of the presented model was carried out on an example supersonic ejector using experimental, numerical and analytical data. Analytical (one dimensional) and computational fluid dynamics models showed satisfactory prediction performance in comparison with the experiment. The average entrainment ratio error was between 10% and 7%, respectively. Results confirmed that the velocity of the primary fluid at the nozzle outlet is in accordance with the one dimensional analysis. Although disturbances (strong and weak shock waves) are visible, their effects are negligible. Also, supersonic ejector performances are presented through relations between entrainment ratio, outlet pressure and spindle position. Disadvantages of variable area nozzle utilization in ejector applications are emphasized. PB - Elsevier Science Inc, New York T2 - Applied Mathematical Modelling T1 - Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods EP - 225 SP - 206 VL - 57 DO - 10.1016/j.apm.2018.01.016 ER -
@article{ author = "Petrović, Andrija and Svorcan, Jelena and Pejčev, Aleksandar and Radenković, Darko and Petrović, Aleksandar", year = "2018", abstract = "Different applications of a variable area convergent-divergent nozzle are found in various parts of the industry. This paper presents the development of a new design methodology for a variable area convergent-divergent nozzle, to maintain constant nozzle area ratio for different values of mass flow rates. The validation of the presented model was carried out on an example supersonic ejector using experimental, numerical and analytical data. Analytical (one dimensional) and computational fluid dynamics models showed satisfactory prediction performance in comparison with the experiment. The average entrainment ratio error was between 10% and 7%, respectively. Results confirmed that the velocity of the primary fluid at the nozzle outlet is in accordance with the one dimensional analysis. Although disturbances (strong and weak shock waves) are visible, their effects are negligible. Also, supersonic ejector performances are presented through relations between entrainment ratio, outlet pressure and spindle position. Disadvantages of variable area nozzle utilization in ejector applications are emphasized.", publisher = "Elsevier Science Inc, New York", journal = "Applied Mathematical Modelling", title = "Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods", pages = "225-206", volume = "57", doi = "10.1016/j.apm.2018.01.016" }
Petrović, A., Svorcan, J., Pejčev, A., Radenković, D.,& Petrović, A.. (2018). Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods. in Applied Mathematical Modelling Elsevier Science Inc, New York., 57, 206-225. https://doi.org/10.1016/j.apm.2018.01.016
Petrović A, Svorcan J, Pejčev A, Radenković D, Petrović A. Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods. in Applied Mathematical Modelling. 2018;57:206-225. doi:10.1016/j.apm.2018.01.016 .
Petrović, Andrija, Svorcan, Jelena, Pejčev, Aleksandar, Radenković, Darko, Petrović, Aleksandar, "Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods" in Applied Mathematical Modelling, 57 (2018):206-225, https://doi.org/10.1016/j.apm.2018.01.016 . .