Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods
Апстракт
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.
Кључне речи:
Variable area nozzle / Numerical modeling / Experimental study / Ejector / Convergent-divergent nozzleИзвор:
Applied Mathematical Modelling, 2018, 57, 206-225Издавач:
- Elsevier Science Inc, New York
Финансирање / пројекти:
- Истраживање и развој савремених приступа пројектовања композитних лопатица ротора високих перформанси (RS-MESTD-Technological Development (TD or TR)-35035)
- Примена савремених мерних и прорачунских техника за изучавање струјних параметара вентилационих система на моделу енергетски изузетно ефикасног (пасивног) објекта (RS-MESTD-Technological Development (TD or TR)-35046)
- Развој и примена метода и лабораторијске опреме за оцењивање усаглашености техничких производа (RS-MESTD-Technological Development (TD or TR)-35031)
- Интегритет опреме под притиском при истовременом деловању замарајућег оптерећења и температуре (RS-MESTD-Technological Development (TD or TR)-35011)
- Методе нумеричке и нелинеарне анализе са применама (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
Колекције
Институција/група
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 . .