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Analysis of Atomization Performance of Linear Laval Nozzle under Varied Water Pressures Based on VOF and DPM Models

Particulate matter from coal and stone operations is a primary air pollution source. The traditional nozzle requires high-pressure conditions, and the atomization droplets are large and uneven. This paper aims to study a linear Laval nozzle and investigate the impact of water pressure on atomizati...

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Main Authors: Shanshan, Tang, Mohd Danial, Ibrahim, Andrew Ragai, Henry Rigit, Wei, Zhang, Chaokun, Wei
Format: Article
Language:English
Published: Taiwan Association of Engineering and Technology Innovation. 2024
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://ir.unimas.my/id/eprint/46647/1/Analysis%20of%20Atomization.pdf
http://ir.unimas.my/id/eprint/46647/
https://ojs.imeti.org/index.php/IJETI/article/view/13615
https://doi.org/10.46604/ijeti.2024.13615
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spelling my.unimas.ir-466472024-11-18T06:35:09Z http://ir.unimas.my/id/eprint/46647/ Analysis of Atomization Performance of Linear Laval Nozzle under Varied Water Pressures Based on VOF and DPM Models Shanshan, Tang Mohd Danial, Ibrahim Andrew Ragai, Henry Rigit Wei, Zhang Chaokun, Wei TJ Mechanical engineering and machinery Particulate matter from coal and stone operations is a primary air pollution source. The traditional nozzle requires high-pressure conditions, and the atomization droplets are large and uneven. This paper aims to study a linear Laval nozzle and investigate the impact of water pressure on atomization performance. The volume of fluid (VOF) model and discrete phase model (DPM) of Fluent are used to simulate the internal and external fields of the nozzle and analyze the velocity, droplet size, and atomization angle. The results show that the optimized water pressure parameters are 0.1 MPa with an air pressure of 0.5 MPa. Droplets in the middle are smaller, while those on the sides are larger. Compared to traditional nozzles, the water pressure is reduced by over 90%, and the Sauter mean diameter (SMD) decreases by over 50%. Moreover, the theoretical spray angle increases by approximately 150%. Taiwan Association of Engineering and Technology Innovation. 2024 Article PeerReviewed text en http://ir.unimas.my/id/eprint/46647/1/Analysis%20of%20Atomization.pdf Shanshan, Tang and Mohd Danial, Ibrahim and Andrew Ragai, Henry Rigit and Wei, Zhang and Chaokun, Wei (2024) Analysis of Atomization Performance of Linear Laval Nozzle under Varied Water Pressures Based on VOF and DPM Models. International Journal of Engineering and Technology Innovation, 14 (4). pp. 335-354. ISSN 2226-809X https://ojs.imeti.org/index.php/IJETI/article/view/13615 https://doi.org/10.46604/ijeti.2024.13615
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Shanshan, Tang
Mohd Danial, Ibrahim
Andrew Ragai, Henry Rigit
Wei, Zhang
Chaokun, Wei
Analysis of Atomization Performance of Linear Laval Nozzle under Varied Water Pressures Based on VOF and DPM Models
description Particulate matter from coal and stone operations is a primary air pollution source. The traditional nozzle requires high-pressure conditions, and the atomization droplets are large and uneven. This paper aims to study a linear Laval nozzle and investigate the impact of water pressure on atomization performance. The volume of fluid (VOF) model and discrete phase model (DPM) of Fluent are used to simulate the internal and external fields of the nozzle and analyze the velocity, droplet size, and atomization angle. The results show that the optimized water pressure parameters are 0.1 MPa with an air pressure of 0.5 MPa. Droplets in the middle are smaller, while those on the sides are larger. Compared to traditional nozzles, the water pressure is reduced by over 90%, and the Sauter mean diameter (SMD) decreases by over 50%. Moreover, the theoretical spray angle increases by approximately 150%.
format Article
author Shanshan, Tang
Mohd Danial, Ibrahim
Andrew Ragai, Henry Rigit
Wei, Zhang
Chaokun, Wei
author_facet Shanshan, Tang
Mohd Danial, Ibrahim
Andrew Ragai, Henry Rigit
Wei, Zhang
Chaokun, Wei
author_sort Shanshan, Tang
title Analysis of Atomization Performance of Linear Laval Nozzle under Varied Water Pressures Based on VOF and DPM Models
title_short Analysis of Atomization Performance of Linear Laval Nozzle under Varied Water Pressures Based on VOF and DPM Models
title_full Analysis of Atomization Performance of Linear Laval Nozzle under Varied Water Pressures Based on VOF and DPM Models
title_fullStr Analysis of Atomization Performance of Linear Laval Nozzle under Varied Water Pressures Based on VOF and DPM Models
title_full_unstemmed Analysis of Atomization Performance of Linear Laval Nozzle under Varied Water Pressures Based on VOF and DPM Models
title_sort analysis of atomization performance of linear laval nozzle under varied water pressures based on vof and dpm models
publisher Taiwan Association of Engineering and Technology Innovation.
publishDate 2024
url http://ir.unimas.my/id/eprint/46647/1/Analysis%20of%20Atomization.pdf
http://ir.unimas.my/id/eprint/46647/
https://ojs.imeti.org/index.php/IJETI/article/view/13615
https://doi.org/10.46604/ijeti.2024.13615
_version_ 1817848740259561472
score 13.223943

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