Granular flow in static mixers by coupled DEM/CFD approach
Апстракт
The mixing process greatly influences the mixing efficiency, as well as the quality and the price of the intermediate and/or the final product. Static mixer is used for premixing action before the main mixing process, for significant reduction of mixing time and energy consumption. This type of premixing action is not investigated in detail in the open literature. In this article, the novel numerical approach called Discrete Element Method is used for modelling of granular flow in multiple static mixer applications (1-3 Komax or Ross mixing elements were utilized), while the Computational Fluid Dynamic Method was chosen for fluid flow modelling, using the Eulerian multiphase model. The main aim of this article is to predict the behavior of granules being gravitationally transported in different mixer configuration and to choose the best configuration of the mixer taking into account the total particle path, the number of mixing elements and the quality of the obtained mixture. The resu...lts of the numerical simulations in the static mixers were compared to experimental results, the mixing quality is examined by RSD (relative standard deviation) criterion, and the effects on the mixer type and the number of mixing elements on mixing process were studied. The effects of the mixer type and the number of mixing elements on mixing process were studied using analysis of variance (ANOVA). Mathematical modelling is used for optimization of number of Ross and Komax segments in mixer in order to gain desirable mixing results.
Кључне речи:
static mixer / Ross / prediction / particle tracking / Komax / DEM/CFDИзвор:
Hemijska Industrija, 2016, 70, 5, 539-546Издавач:
- Savez hemijskih inženjera, Beograd
Финансирање / пројекти:
- Осмотска дехидратација хране - енергетски и еколошки аспекти одрживе производње (RS-MESTD-Technological Development (TD or TR)-31055)
DOI: 10.2298/HEMIND151013060P
ISSN: 0367-598X
WoS: 000388029800006
Scopus: 2-s2.0-84995475661
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Pezo, Lato AU - Pezo, Milada AU - Jovanović, Aca AU - Kosanić, Nenad AU - Petrović, Aleksandar AU - Lević, Ljubinko PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2491 AB - The mixing process greatly influences the mixing efficiency, as well as the quality and the price of the intermediate and/or the final product. Static mixer is used for premixing action before the main mixing process, for significant reduction of mixing time and energy consumption. This type of premixing action is not investigated in detail in the open literature. In this article, the novel numerical approach called Discrete Element Method is used for modelling of granular flow in multiple static mixer applications (1-3 Komax or Ross mixing elements were utilized), while the Computational Fluid Dynamic Method was chosen for fluid flow modelling, using the Eulerian multiphase model. The main aim of this article is to predict the behavior of granules being gravitationally transported in different mixer configuration and to choose the best configuration of the mixer taking into account the total particle path, the number of mixing elements and the quality of the obtained mixture. The results of the numerical simulations in the static mixers were compared to experimental results, the mixing quality is examined by RSD (relative standard deviation) criterion, and the effects on the mixer type and the number of mixing elements on mixing process were studied. The effects of the mixer type and the number of mixing elements on mixing process were studied using analysis of variance (ANOVA). Mathematical modelling is used for optimization of number of Ross and Komax segments in mixer in order to gain desirable mixing results. PB - Savez hemijskih inženjera, Beograd T2 - Hemijska Industrija T1 - Granular flow in static mixers by coupled DEM/CFD approach EP - 546 IS - 5 SP - 539 VL - 70 DO - 10.2298/HEMIND151013060P ER -
@article{ author = "Pezo, Lato and Pezo, Milada and Jovanović, Aca and Kosanić, Nenad and Petrović, Aleksandar and Lević, Ljubinko", year = "2016", abstract = "The mixing process greatly influences the mixing efficiency, as well as the quality and the price of the intermediate and/or the final product. Static mixer is used for premixing action before the main mixing process, for significant reduction of mixing time and energy consumption. This type of premixing action is not investigated in detail in the open literature. In this article, the novel numerical approach called Discrete Element Method is used for modelling of granular flow in multiple static mixer applications (1-3 Komax or Ross mixing elements were utilized), while the Computational Fluid Dynamic Method was chosen for fluid flow modelling, using the Eulerian multiphase model. The main aim of this article is to predict the behavior of granules being gravitationally transported in different mixer configuration and to choose the best configuration of the mixer taking into account the total particle path, the number of mixing elements and the quality of the obtained mixture. The results of the numerical simulations in the static mixers were compared to experimental results, the mixing quality is examined by RSD (relative standard deviation) criterion, and the effects on the mixer type and the number of mixing elements on mixing process were studied. The effects of the mixer type and the number of mixing elements on mixing process were studied using analysis of variance (ANOVA). Mathematical modelling is used for optimization of number of Ross and Komax segments in mixer in order to gain desirable mixing results.", publisher = "Savez hemijskih inženjera, Beograd", journal = "Hemijska Industrija", title = "Granular flow in static mixers by coupled DEM/CFD approach", pages = "546-539", number = "5", volume = "70", doi = "10.2298/HEMIND151013060P" }
Pezo, L., Pezo, M., Jovanović, A., Kosanić, N., Petrović, A.,& Lević, L.. (2016). Granular flow in static mixers by coupled DEM/CFD approach. in Hemijska Industrija Savez hemijskih inženjera, Beograd., 70(5), 539-546. https://doi.org/10.2298/HEMIND151013060P
Pezo L, Pezo M, Jovanović A, Kosanić N, Petrović A, Lević L. Granular flow in static mixers by coupled DEM/CFD approach. in Hemijska Industrija. 2016;70(5):539-546. doi:10.2298/HEMIND151013060P .
Pezo, Lato, Pezo, Milada, Jovanović, Aca, Kosanić, Nenad, Petrović, Aleksandar, Lević, Ljubinko, "Granular flow in static mixers by coupled DEM/CFD approach" in Hemijska Industrija, 70, no. 5 (2016):539-546, https://doi.org/10.2298/HEMIND151013060P . .