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Computational algorithms for multiphase magnetohydrodynamics and applications to accelerator targets

Samulyak, Bo, Li, Kirk, McDonald
2010 Condensed Matter Physics  
An interface-tracking numerical algorithm for the simulation of magnetohydrodynamic multiphase / free surface flows in the low-magnetic-Reynolds-number approximation of (Samulyak R., Du J., Glimm J., Xu  ...  The algorithm has been implemented in multi-physics code FronTier and used for the simulation of MHD processes in liquids and weakly ionized plasmas.  ...  The United States Government retains, and the publisher, by accepting the article for publication, acknowledges, a worldwide license to publish or reproduce the published form of this manuscript, or allow  ... 
doi:10.5488/cmp.13.43402 fatcat:ysdp6kpby5a3xnfjccxv6wz4o4

A New Approach To Signal Processing For Dc-Electromagnetic Flowmeters

Michael Schukat
2007 Zenodo  
Electromagnetic flowmeters with DC excitation are used for a wide range of fluid measurement tasks, but are rarely found in dosing applications with short measurement cycles due to the achievable accuracy  ...  Based on these results a new signal-processing algorithm will be described that overcomes the identified problems to some extend.  ...  They are founded on Faraday's law of induction, whereby an electrical field E is induced in a moving liquid in the presence of a magnetic field B (see Figure 1 ).  ... 
doi:10.5281/zenodo.1075749 fatcat:yiiftga5hbh4fkfwy35gehcqde

Effect of geometric shape of micro-grooves on the performance of textured hybrid thrust pad bearing

Vivek Kumar, Satish C. Sharma
2019 Journal of the Brazilian Society of Mechanical Sciences and Engineering  
A numerical simulation is performed to investigate the synergizing influence of surface texture (micro-grooves) and electrically conducting lubricant on static and dynamic performance of hybrid thrust  ...  Employing of electrically conducting lubricant is seen to be enhancing the load-carrying capacity and damping characteristics of the bearing.  ...  A mesh resolution test (Table 2) is performed to obtain optimum mesh size for simulating the behaviour of fluid flow within the micro-grooves.  ... 
doi:10.1007/s40430-019-2016-0 fatcat:aqtyx2um2zhmti32t2gwaftbou

Methods to improve electro kinetic energy conversion efficiency in nanoscale channel

Manu P Nair, Jeetu S Babu
2018 International Journal of Engineering & Technology  
With the help of MD simulation in a Lennard jones system, Argon fluid flowing through a Platinum channel, we have demonstrated a practical approach to tune slip length in nanoscale flows.  ...  It was found that the presence of solid obstacles in the channel can manipulate the slip length similar to the variation of slip length with respect to fluid solid interaction potential.  ...  Acknowledgment The authors would like to thank Science and Engineering Research Board, Department of Science and Technology, New Delhi, India, for providing us with the financial support for conducting  ... 
doi:10.14419/ijet.v7i2.31.13405 fatcat:d32m7pesmrfkxgxhcxajwi3c5m

Electroosmotic flow control in complex microgeometries

P. Dutta, A. Beskok, T.C. Warburton
2002 Journal of microelectromechanical systems  
The results for pure electroosmotic flows in cross-flow junctions under multiple electric fields show similarities between the electric and velocity fields.  ...  Flow control in the Stokes flow regime is shown to have linear dependence on the magnitude of the externally applied electric field, both for pure electroosmotic and combined flows.  ...  ACKNOWLEDGMENT The computational facilities provided by the Dell STAR Program are appreciated. The authors would like thank Dr. S. Devasenathipathy for his careful review of this article.  ... 
doi:10.1109/84.982861 fatcat:5ddgjrprxzgini5i6zqd2rnpuu

Simulation of deformation and decomposition of droplets exposed to electro-hydrodynamic flow in a porous media by lattice Boltzmann method

Yu-Liang Sun, Amin Rahmani, Tareq Saeed, Majid Zarringhalam, Muhammad Ibrahim, Davood Toghraie
2021 Alexandria Engineering Journal  
In this study, a free energy model of the Lattice Boltzmann Method (LBM) is performed to simulate the motion, deformation, and decomposition of a droplet in the presence of electrohydrodynamic flow in  ...  To simulate the multi-phase flow in the presence of dielectric current by using the LBM, three distribution functions are used.  ...  Muhammad Ibrahim acknowledges the Office of China Postdoctoral Council (OCPC) for the postdoctoral international exchange program.  ... 
doi:10.1016/j.aej.2021.06.040 fatcat:icn7oila7zcdjdx5kg7opmboh4

A Fast Algorithm to Predict Cell Trajectories in Microdevices Using Dielectrophoresis

Talukder Z. Jubery, Prashanta Dutta
2013 Numerical Heat Transfer, Part A Applications  
CONCLUSION In this article, an efficient algorithm is presented for simulating trajectories of particles in a microdevice under applied AC electric field.  ...  Thus, in such cases, a more appropriate approach is to solve the fluid flow considering the presence of the particle. 1.  ... 
doi:10.1080/10407782.2013.773780 fatcat:x4obtiw7j5h6xhoczbsa2pabxi

Numerical Simulation of a Falling Droplet of Liquid Metal into a Liquid Layer in the Presence of a Uniform Vertical Magnetic Field

Toshio TAGAWA
2005 ISIJ International  
Dynamics of a falling droplet of liquid metal into a horizontal liquid layer in the presence of a uniform vertical magnetic field is numerically studied.  ...  The numerical results reveal that the electromagnetic force simply opposes spreading of the disturbance after collision. KEY WORDS: two-phase flow; numerical simulation; magnetic field. Fig. 1.  ...  Ueno et al. 5) performed a numerical simulation of a deformed bubble rising in a magnetic fluid in the presence of a vertical uniform magnetic field with a front capturing method.  ... 
doi:10.2355/isijinternational.45.954 fatcat:3zmqcponubaprhn5cjihq2clam

A numerical algorithm for MHD of free surface flows at low magnetic Reynolds numbers

Roman Samulyak, Jian Du, James Glimm, Zhiliang Xu
2007 Journal of Computational Physics  
The code is applicable for numerical simulations of free surface conductive liquids or flows of weakly ionized plasmas.  ...  We have developed a numerical algorithm and computational software for the study of magnetohydrodynamics (MHD) of free surface flows at low magnetic Reynolds numbers.  ...  The United States Government retains, and the publisher, by accepting the article for publication, acknowledges, a world-wide license to publish or reproduce the published form of this manuscript, or allow  ... 
doi:10.1016/j.jcp.2007.06.005 fatcat:umloe6gbkzavziwzwtxlptgfrq

On Electromagnetic Modulation of Flow Instabilities, Mixing and Heat Transfer in Conducting and Magnetized Fluids

S Kenjeres
2016 Journal of Physics, Conference Series  
In the present paper we give a concise review of some recent highlights of our research dealing with electromagnetic control of flow, mixing and heat transfer of electrically conductive or magnetized fluids  ...  ) electromagnetic fields and underlying fluid flow.  ...  Acknowledgments The  ... 
doi:10.1088/1742-6596/745/2/022003 fatcat:mjjqqfzm4jaazigdttrktfy72e

Non-Linear Electrohydrodynamics in Microfluidic Devices

Jun Zeng
2011 International Journal of Molecular Sciences  
Since the inception of microfluidics, the electric force has been exploited as one of the leading mechanisms for driving and controlling the movement of the operating fluid and the charged suspensions.  ...  Because the electrodes are placed over a small distance, from sub-millimeter to a few microns, a very high electric field is easy to obtain.  ...  Acknowledgements This author acknowledges and deeply appreciates the collaborations and insightful discussions of K.  ... 
doi:10.3390/ijms12031633 pmid:21673912 pmcid:PMC3111623 fatcat:56kback2nze73ngzzvqh6jsxca

Page 6514 of Mathematical Reviews Vol. , Issue 2004h [page]

2004 Mathematical Reviews  
Its simple concept, straightforward algorithm, and adaptability to include new features (such as gravity, electric field, geomagnetic field, and different collision models) make it a useful tool in space  ...  Dehua Wang (1-PITT; Pittsburgh, PA) 2004h:76170 76W05 76E17 76E25 Zakaria, Kadry (ET-TANTS; Tanta) Nonlinear dynamics of magnetic fluids with a relative motion in the presence of an oblique magnetic field  ... 

Modeling of EM assisted oil recovery

D. Pasalic, P. Vaca, M. Okoniewski
2014 2014 International Conference on Electromagnetics in Advanced Applications (ICEAA)  
 An algorithm for rigorous analysis of electromagnetic (EM) heating of heavy oil reservoirs is presented in the paper.  ...  The algorithm combines an FDTDbased EM solver with a reservoir simulator, utilizing the fact that the two simulators operate at completely different time scales.  ...  Due to the initial presence of brine and certain minerals, the formation is electrically lossy with the conductivity in the range between 10 -3 and 1 S/m [3] .  ... 
doi:10.1109/iceaa.2014.6903931 fatcat:k636lnhqcvcp7i66estvxpq5wm

Fluctuation in Blood Velocity under Applied Electromagnetic Pulse Fields

Maryam Roozbeh
2017 International Journal of Biosensors & Bioelectronics  
The definition of the "Lorentz Force" comes from applying electrical and magnetic fields straight to fluid direction. This force is an elemental factor for magnetohydrodynamic pumps.  ...  Accordingly, MHD pump performance is impacted with any small fluctuation in electrically conducting fluid and current density in blood carrying arteries.  ...  Acknowledgements We are interested to acknowledge the biomedical engineering group for their help in providing primary idea and following up with the experiments.  ... 
doi:10.15406/ijbsbe.2017.02.00029 fatcat:zf77tjmzmrhirj6dmgvzh6w5nq

Inversion Algorithm of Fiber Bragg Grating for Nanofluid Flooding Monitoring

Noorhana Yahya, Chai Mui Nyuk, Ahmad Fauzi Ismail, Nazabat Hussain, Amir Rostami, Atef Ismail, Menaka Ganeson, Abdullah Musa Ali
2020 Sensors  
This use of FBG magneto-optic sensors could be a remarkable breakthrough for fluid-flow tracking in oil reservoirs.  ...  In the current study, we developed an adaptive algorithm that can predict oil mobilization in a porous medium on the basis of optical data.  ...  Acknowledgments: The authors express their appreciation for the financial support of this study by the Yayasan Universiti Teknologi PETRONAS research grant (YUTP Cost Center: 015LCO-149).  ... 
doi:10.3390/s20041014 pmid:32069956 pmcid:PMC7070743 fatcat:ln34jhjjzjc2vburpwajboplfy
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