1
|
Thampi SP, Stratford K, Henrich O. Simulating dynamics of ellipsoidal particles using lattice Boltzmann method. Phys Rev E 2024; 109:065302. [PMID: 39020973 DOI: 10.1103/physreve.109.065302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 05/21/2024] [Indexed: 07/20/2024]
Abstract
Anisotropic particles are often encountered in different fields of soft matter and complex fluids. In this work, we present an implementation of the coupled hydrodynamics of solid ellipsoidal particles and the surrounding fluid using the lattice Boltzmann method. A standard link-based mechanism is used to implement the solid-fluid boundary conditions. We develop an implicit method to update the position and orientation of the ellipsoid. This exploits the relations between the quaternion which describes the ellipsoid's orientation and the ellipsoid's angular velocity to obtain a stable and robust dynamic update. The proposed algorithm is validated by looking at four scenarios: (i) the steady translational velocity of a spheroid subject to an external force in different orientations, (ii) the drift of an inclined spheroid subject to an imposed force, (iii) three-dimensional rotational motions in a simple shear flow (Jeffrey's orbits), and (iv) developed fluid flows and self-propulsion exhibited by a spheroidal microswimmer. In all cases the comparison of numerical results shows good agreement with known analytical solutions, irrespective of the choice of the fluid properties, geometrical parameters, and lattice Boltzmann model, thus demonstrating the robustness of the proposed algorithm.
Collapse
|
2
|
Zhang F, Pang J, Wu Z, Liu J, Zhong Y. Effects of Different Motion Parameters on the Interaction of Fish School Subsystems. Biomimetics (Basel) 2023; 8:510. [PMID: 37999151 PMCID: PMC10669560 DOI: 10.3390/biomimetics8070510] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/10/2023] [Accepted: 10/18/2023] [Indexed: 11/25/2023] Open
Abstract
For a long time, fish school swimming has attracted a great deal of attention in biological systems, as fish schools can have complex hydrodynamic effects on individuals. This work adopted a non-iterative, immersed boundary-lattice Boltzmann method (IB-LBM). A numerical simulation of two-dimensional three-degree-of-freedom self-propelled fish, in side-by-side, staggered, and triangle formations, was conducted by adjusting spacing and motion parameters. A comprehensive analysis of individual speed gains and energy efficiencies in these formations was carried out. Furthermore, an analysis of the hydrodynamic characteristics of fish schools was performed, using instantaneous vorticity profiles and pressure fields. Certain studies have shown that passive interactions between individuals cannot always bring hydrodynamic benefits. The swimming efficiency of side-by-side formations in the same phase gradually increases as the distance decreases, but it also brings certain burdens to individuals when the phases are different. This paper also shows that the roles of passive interactions, spacing, and deflections affect fish school subsystems differently. When the low-pressure areas created by a wake vortex act on one side of an individual's body, the tail-end fish are good at gaining hydrodynamic benefits from it. This effect is not universal, and the degree to which individuals benefit from changes in exercise parameters varies. This study provides a theoretical basis for bioinspired robots, as well as providing certain insights into the mechanism of collective biological movement.
Collapse
Affiliation(s)
- Feihu Zhang
- School of Mechanical Engineering, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang 524088, China
- Shenzhen Institute of Guangdong Ocean University, No. 3 Binhai 2nd Road, Dapeng New District, Shenzhen 518120, China
| | - Jianhua Pang
- School of Mechanical Engineering, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang 524088, China
- Shenzhen Institute of Guangdong Ocean University, No. 3 Binhai 2nd Road, Dapeng New District, Shenzhen 518120, China
- Guangdong Provincial Key Laboratory of Intelligent Equipment for South China Sea Marine Ranching, Guangdong Ocean University, No. 5, Haibin Avenue Middle, Development District, Zhanjiang 524088, China
| | - Zongduo Wu
- School of Mechanical Engineering, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang 524088, China
- Guangdong Provincial Key Laboratory of Intelligent Equipment for South China Sea Marine Ranching, Guangdong Ocean University, No. 5, Haibin Avenue Middle, Development District, Zhanjiang 524088, China
| | - Junkai Liu
- School of Mechanical Engineering, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang 524088, China
- Shenzhen Institute of Guangdong Ocean University, No. 3 Binhai 2nd Road, Dapeng New District, Shenzhen 518120, China
| | - Yifei Zhong
- School of Mechanical Engineering, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang 524088, China
- Shenzhen Institute of Guangdong Ocean University, No. 3 Binhai 2nd Road, Dapeng New District, Shenzhen 518120, China
| |
Collapse
|
3
|
Ho CD, Tu JW, Chang H, Lin LP, Chew TL. Optimizing thermal efficiencies of power-law fluids in double-pass concentric circular heat exchangers with sinusoidal wall fluxes. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2022; 19:8648-8670. [PMID: 35942729 DOI: 10.3934/mbe.2022401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Effect of external-recycle operations on the heat-transfer efficiency, specifically for the power-law fluid flowing in double-pass concentric circular heat exchanger under sinusoidal wall fluxes, is investigated theoretically in the developed countries. Given that the fluid is heated twice on both sides of the impermeable sheet, four flow patterns proposed in recycling double-pass operations are expected to make substantial improvements in the performance of heat exchanger device in this study. Theoretical predictions point out that the heat-transfer efficiency increases with the ratio of channel thickness of double-pass concentric circular heat exchanger for all new designs under the same working dimension and the operational condition. The fluid velocity within the double-pass heat exchanger is increased by the fluids flowing through divided subchannels, which contributed to the higher convective heat-transfer efficiency. A simplified mathematical formulation was derived for double-pass concentric circular heat exchangers and would be a significant contribution to analyze heat transfer problems with sinusoidal wall fluxes at boundaries. The results deliver the optimal performance for the proposed four configurations with the use of external recycle compared to those conducted in single-pass, where an impermeable sheet is not inserted. The influences of power-law index and impermeable-sheet position on average Nusselt numbers under various flow patterns are also delineated. The distribution of dimensionless wall temperature was lower at the level of relative smaller thickness of annular channel, and the average Nusselt numbers for four external-recycle configurations and single-pass device were more suitable for operating under same condition. The ratio of the power consumption increment to heat-transfer efficiency enhancement demonstrates the economic feasibility among various configurations of double-pass concentric circular heat exchanger. The results also show that the external-recycle configuration (say Type B in the present study) serves as an important economic advantage in designing concentric circular heat exchangers for heating power-law fluids due to the smaller volumetric flow rate in annular channel with exiting outlet temperature.
Collapse
Affiliation(s)
- Chii-Dong Ho
- Department of Chemical and Materials Engineering, Tamkang University, 151 Yingzhuan Road, Tamsui, New Taipei, Taiwan 251
| | - Jr-Wei Tu
- Department of Chemical and Materials Engineering, Tamkang University, 151 Yingzhuan Road, Tamsui, New Taipei, Taiwan 251
| | - Hsuan Chang
- Department of Chemical and Materials Engineering, Tamkang University, 151 Yingzhuan Road, Tamsui, New Taipei, Taiwan 251
| | - Li-Pang Lin
- Department of Chemical and Materials Engineering, Tamkang University, 151 Yingzhuan Road, Tamsui, New Taipei, Taiwan 251
| | - Thiam Leng Chew
- Department of Chemical Engineering, Faculty of Engineering, Universiti Teknologi Petronas, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
- CO2 Research Center (CO2RES), Institute of Contaminant Management Universiti Teknologi Petronas, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| |
Collapse
|
4
|
Lins TF, O'Brien AM, Zargartalebi M, Sinton D. Nanoplastic State and Fate in Aquatic Environments: Multiscale Modeling. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:4017-4028. [PMID: 35311252 DOI: 10.1021/acs.est.1c03922] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We now know that nanoplastics can harm aquatic organisms, but understanding ecological risk starts with understanding fate. We coupled population balance and fugacity models to predict the conditions under which nanoplastics remain as single particles, aggregate, or sediment and to predict their capacity to concentrate organic pollutants. We carried out simulations across a broad range of nanoplastic concentrations, particle sizes, and particle-particle interactions under a range of salinity and organic matter conditions. The model predicts that across plastic materials and environmental conditions, nanoplastics will either remain mostly dispersed or settle as aggregates with natural colloids. Nanoplastics of different size classes respond dissimilarly to concentration, ionic strength, and organic matter content, indicating that the sizes of nanoplastics to which organisms are exposed likely shift across ecological zones. We implemented a fugacity model of the Great Lakes to assess the organic pollution payload carried by nanoplastics, generating the expectation that nanoplastics would carry nine times more pollutants than microsized plastics and a threshold concentration of 10 μg/L at which they impact pollutant distribution. Our simulations across a broad range of factors inform future experimentation by highlighting the relative importance of size, concentration, material properties, and interactions in driving nanoplastic fate in aquatic environments.
Collapse
Affiliation(s)
- Tiago F Lins
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto ON M5S 3G8, Canada
| | - Anna M O'Brien
- Department of Ecology and Evolutionary Biology, University of Toronto, 25 Wilcocks Street, Toronto ON M5S 3B2, Canada
| | - Mohammad Zargartalebi
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto ON M5S 3G8, Canada
| | - David Sinton
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto ON M5S 3G8, Canada
| |
Collapse
|
5
|
Effect of the milling method and particle structure on the color tone of (Cr, Fe)2O3 inorganic black masterbatch pigment. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2021.103421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
6
|
Smoleń J, Olesik P, Jała J, Myalska-Głowacka H, Godzierz M, Kozioł M. Application of Mathematical and Experimental Approach in Description of Sedimentation of Powder Fillers in Epoxy Resin. MATERIALS 2021; 14:ma14247520. [PMID: 34947116 PMCID: PMC8707976 DOI: 10.3390/ma14247520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 11/23/2022]
Abstract
In this paper, sedimentation inhibition attempts were examined using colloidal silica in a mathematical and experimental approach. Experimental results were validated by a two-step verification process. It was demonstrated that application of quantitative metallography and hardness measurements in three different regions of samples allows us to describe the sedimentation process using modified Stokes law. Moreover, proper application of Stokes law allows one to determine the optimal colloidal silica amount, considering characteristics of applied filler (alumina or graphite). The results of mathematical calculations have been confirmed experimentally—the experimental results show good agreement with the calculated data.
Collapse
Affiliation(s)
- Jakub Smoleń
- Faculty of Materials Engineering, Silesian University of Technology, Krasińskiego 8 Street, 40-019 Katowice, Poland; (P.O.); (J.J.); (H.M.-G.); (M.K.)
- Correspondence:
| | - Piotr Olesik
- Faculty of Materials Engineering, Silesian University of Technology, Krasińskiego 8 Street, 40-019 Katowice, Poland; (P.O.); (J.J.); (H.M.-G.); (M.K.)
| | - Jakub Jała
- Faculty of Materials Engineering, Silesian University of Technology, Krasińskiego 8 Street, 40-019 Katowice, Poland; (P.O.); (J.J.); (H.M.-G.); (M.K.)
| | - Hanna Myalska-Głowacka
- Faculty of Materials Engineering, Silesian University of Technology, Krasińskiego 8 Street, 40-019 Katowice, Poland; (P.O.); (J.J.); (H.M.-G.); (M.K.)
| | - Marcin Godzierz
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34 Street, 41-819 Zabrze, Poland;
| | - Mateusz Kozioł
- Faculty of Materials Engineering, Silesian University of Technology, Krasińskiego 8 Street, 40-019 Katowice, Poland; (P.O.); (J.J.); (H.M.-G.); (M.K.)
| |
Collapse
|
7
|
Huang L, Du J, Zhu Z. Neutrally Buoyant Particle Migration in Poiseuille Flow Driven by Pulsatile Velocity. MICROMACHINES 2021; 12:1075. [PMID: 34577719 PMCID: PMC8465404 DOI: 10.3390/mi12091075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 11/26/2022]
Abstract
A neutrally buoyant circular particle migration in two-dimensional (2D) Poiseuille channel flow driven by pulsatile velocity is numerical studied by using immersed boundary-lattice Boltzmann method (IB-LBM). The effects of Reynolds number (25≤Re≤200) and blockage ratio (0.15≤k≤0.40) on particle migration driven by pulsatile and non-pulsatile velocity are all numerically investigated for comparison. The results show that, different from non-pulsatile cases, the particle will migrate back to channel centerline with underdamped oscillation during the time period with zero-velocity in pulsatile cases. The maximum lateral travel distance of the particle in one cycle of periodic motion will increase with increasing Re, while k has little impact. The quasi frequency of such oscillation has almost no business with Re and k. Moreover, Re plays an essential role in the damping ratio. Pulsatile flow field is ubiquitous in aorta and other arteries. This article is conducive to understanding nanoparticle migration in those arteries.
Collapse
Affiliation(s)
| | | | - Zefei Zhu
- School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China; (L.H.); (J.D.)
| |
Collapse
|
8
|
Rouhani Tazangi H, Soltani Goharrizi A, Jahanshahi Javaran E. Numerical simulation of elliptical particles sedimentation in power-law fluid using the improved smoothed profile-lattice Boltzmann method. PARTICULATE SCIENCE AND TECHNOLOGY 2021. [DOI: 10.1080/02726351.2020.1788680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | | | - Ebrahim Jahanshahi Javaran
- Department of Energy, Institute of Science and High Technology and Environmental Sciences Graduate, University of Advanced Technology, Kerman, Iran
| |
Collapse
|
9
|
Sun L, Zhao Q, Zhang Y, Gao W, Jing D. Insights into the rheological behavior of ethanol-based metal oxide nanofluids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
10
|
Afra B, Amiri Delouei A, Mostafavi M, Tarokh A. Fluid-structure interaction for the flexible filament's propulsion hanging in the free stream. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114941] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
11
|
Samal S. Effect of shape and size of filler particle on the aggregation and sedimentation behavior of the polymer composite. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.02.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
12
|
Kohestani A, Rahnama M, Jafari S, Jahanshahi Javaran E. Non-circular particle treatment in smoothed profile method: a case study of elliptical particles sedimentation using lattice Boltzmann method. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2019.1572514] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Akbar Kohestani
- Mechanical Engineering Department, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mohammad Rahnama
- Mechanical Engineering Department, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Saeed Jafari
- Petroleum Engineering Department, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Ebrahim Jahanshahi Javaran
- Department of Energy, Institute of Science and High Technology and Environmental Sciences Graduate University of Advanced Technology, Kerman, Iran
| |
Collapse
|
13
|
Gerivani H, Nazari M. Proposing a lattice spring damper model for simulation of interaction between elastic/ viscoelastic filaments and fluid flow in immersed boundary-lattice Boltzmann framework. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
14
|
Lebovka NI, Tarasevich YY, Bulavin LA, Kovalchuk VI, Vygornitskii NV. Sedimentation of a suspension of rods: Monte Carlo simulation of a continuous two-dimensional problem. Phys Rev E 2019; 99:052135. [PMID: 31212574 DOI: 10.1103/physreve.99.052135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Indexed: 06/09/2023]
Abstract
The sedimentation of a two-dimensional suspension containing rods was studied by means of Monte Carlo (MC) simulations. An off-lattice model with continuous positional and orientational degrees of freedom was considered. The initial state before sedimentation was produced using a model of random sequential adsorption. During such sedimentation, the rods undergo translational and rotational Brownian motions. The MC simulations were run at different initial number densities (the numbers of rods per unit area), ρ_{i}, and sedimentation rates, u. For sediment films, the spatial distributions of the rods, the order parameters, and the electrical conductivities were examined. Different types of sedimentation-driven self-assembly and anisotropy of the electrical conductivity were revealed inside the sediment films. This anisotropy can be finely regulated by changes in the values of ρ_{i} and u.
Collapse
Affiliation(s)
- Nikolai I Lebovka
- Department of Physical Chemistry of Disperse Minerals, F. D. Ovcharenko Institute of Biocolloidal Chemistry, NAS of Ukraine, Kiev, Ukraine 03142
- Department of Physics, Taras Shevchenko Kiev National University, Kiev, Ukraine 01033
| | - Yuri Yu Tarasevich
- Laboratory of Mathematical Modeling, Astrakhan State University, Astrakhan, Russia 414056
| | - Leonid A Bulavin
- Department of Physics, Taras Shevchenko Kiev National University, Kiev, Ukraine 01033
| | - Valery I Kovalchuk
- Department of Physics, Taras Shevchenko Kiev National University, Kiev, Ukraine 01033
| | - Nikolai V Vygornitskii
- Department of Physical Chemistry of Disperse Minerals, F. D. Ovcharenko Institute of Biocolloidal Chemistry, NAS of Ukraine, Kiev, Ukraine 03142
| |
Collapse
|