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Volume 105
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Investigation of particle motion in a rotatory flow field exposed to a forced vortex condition
Sina Gouran a b *, Saad Alshahrani c d, Hijaz Ahmad e f g h
a Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
b School of Engineering & Technology, Duy Tan University, Da Nang, Vietnam
c Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha, 61421, Saudi Arabia
d Centre for Engineering and Technology Innovations, King Khalid University, Abha, 61421, Saudi Arabia
e Near East University, Operational Research Center in Healthcare, TRNC Mersin 10, Nicosia 99138, Turkey
f Department of Mathematics, College of Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea
g Department of Mathematics, Faculty of Science, Islamic University of Madinah, Madinah, 42351, Saudi Arabia
h Engineered Biomaterials Research Center, Khazar University, Baku, Azerbaijan
10.1016/j.partic.2025.07.018
Volume 105, October 2025, Pages 88-94
Received 18 April 2025, Revised 11 July 2025, Accepted 24 July 2025, Available online 7 August 2025, Version of Record 18 August 2025.
E-mail: sina.gooran@yahoo.com
Highlights

• Influences of sphere size on sphere motion at forced vortex situation.

• Tangential and radial velocity distribution differences of sphere in a swirling flow.

• Governing equation of motions for small sphere in polar coordination.

• Variation on sphere trajectory in different operation situation.


Abstract

To enhance the performance and service life of the operating instrument in the food production process, the purpose of this paper is to study particle motion in a forced vortex flow condition as a way of performance improvement. To solve the nonlinear equations of motion for the fine particle, a meshless Galerkin technique is applied. After declaring the proper accuracy of the results by comparison with existing research papers, the influences of some critical parameters on the particle movement have been examined. The radial part of the sphere velocity increases when the sphere size increases. However, this radial velocity is reduced by enhancing the sphere's initial velocity. For all situations, the sphere's velocity reduction is observed over time.

Graphical abstract
Keywords
Particle motion; Forced vortex flow; Rotating fluid zone; Galerkin method
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