Numerical analysis of electromagnetic force on magnetic nanoparticles in fluid

2015 ◽  
Author(s):  
F. Fang ◽  
W. Guan
Keyword(s):  
Magnetic Nanoparticles ◽  
Numerical Analysis ◽  
Electromagnetic Force

Numerical Analysis of Electromagnetic Force on Magnetic Nanoparticles in Fluid

2015 ◽  
Vol 51 (11) ◽  
pp. 1-4
Author(s):  
Weimin Guan ◽  
Fuxin Fang ◽  
Haiyang Kong ◽  
Xuan Wang ◽  
Jiaxin Yuan ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Numerical Analysis ◽  
Electromagnetic Force

Numerical analysis of capture and isolation of magnetic nanoparticles in microfluidic system

2018 ◽  
Vol 32 (34n36) ◽  
pp. 1840075 ◽  
Author(s):  
Jianjiang Guo ◽  
Yanfei Wang ◽  
Ziqi Xue ◽  
Hui Xia ◽  
Ning Yang ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Numerical Analysis ◽  
Magnetic Nanoparticle ◽  
Microfluidic Channel ◽  
Microfluidic System ◽  
Microfluidic Channels ◽  
Optimal Parameters ◽  
Magnetic Pole ◽  
System A ◽  
Simulation Results

Rapid capturing and isolation of magnetic nanoparticles is critical for microfluidic biodetection system. A numerical model based on multiphysics coupled-field finite-element method is developed for evaluating the capture and segregation of magnetic nanoparticles in microfluidic channel. The model consists of microfluidic channels surrounded by four electromagnets changed periodically. The trajectories and trapping efficiencies are numerically analyzed for multiple magnetic nanoparticles released in microfluidic channel. Simulation results showed that magnetic pole current, inlet velocity and diameter of magnetic nanoparticles have an impact on the capture efficiency of magnetic nanoparticle. Thus, the model with the optimal parameters can reasonably predict and evaluate completely trapping of 180 nm magnetic nanoparticles in the simulation. The numerical analysis will encouraging for the design and development of new microfluidic bioseparation and detection microsystems.

NUMERICAL ANALYSIS ON MATHEMATICAL MODEL FOR DRUG DELIVERY SYSTEM ON BLOOD FLOW IN EXTERNAL MAGNETIC FIELDS BY MAGNETIC NANOPARTICLES

2016 ◽  
Vol 78 (4-4) ◽  
Author(s):  
Norma Alias ◽  
Sakinah Abdul Hanan ◽  
Akhtar Ali ◽  
Zakaria Dollah
Keyword(s):  
Mathematical Model ◽  
Drug Delivery ◽  
Blood Flow ◽  
Magnetic Nanoparticles ◽  
Numerical Analysis ◽  
Drug Delivery System ◽  
Delivery System ◽  
Sequential Algorithm ◽  
Convergence Criterion ◽  
Time Accuracy

A new design of mathematical model of therapeutic compound in blood flow patterns in a capillary attached the magnetic nanoparticles by the external magnetic field which is applied uniformly is considered. The blood flowing through the capillary is dominated to be Newtonian and the flow is assumed unsteady, incompressible and laminar. Based on the present knowledge of the drug delivery, the mathematical models have highly potential to develop by researchers. The implementation of the sequential algorithm is used to model the magnetic nanoparticles drug delivery system. Discretization of the governing equation together with the boundary condition is carried out before they are solved numerically using a finite difference scheme. The sequential algorithms on the mathematical model based on some numerical methods such as Jacobi and Gauss Seidel. The numerical analysis investigates in terms of execution time, accuracy, computational complexity, convergence criterion, root means square error and maximum error. The Gauss Seidel is the superior method compared to Jacobi.

Numerical Analysis of the Workpiece Velocity in Electromagnetic Forming Process

2011 ◽  
Vol 314-316 ◽  
pp. 634-638
Author(s):  
Li Qiu ◽  
Yi Liang Lv ◽  
Cheng Xi Jiang ◽  
Xiao Tao Han ◽  
Liang Li
Keyword(s):  
Numerical Analysis ◽  
Kinetic Energy ◽  
Differential Equations ◽  
Electromagnetic Force ◽  
Electrical Energy ◽  
Electromagnetic Forming ◽  
Forming Process ◽  
Conservation Of Energy ◽  
The Law

The effect of the motional electromagnetic force in the electromagnetic forming circuit on the workpiece velocity is analyzed. The differential equations of unconsidering and considering the motional electromagnetic force in the electromagnetic forming circuit are solved numerically. The results without considering the motional electromagnetic force are unavailable because they violate the law of conservation of energy, while the results with considering the motional electromagnetic force can accurately reflect the electromagnetic forming process. Furthermore, it is found that the electrical energy transforms into the kinetic energy due to the motional electromagnetic force.

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