MHD effects caused by insulator coating imperfections

Xu, Zhengyang; Chen, Pan; Jiang, Weihong; Wenhao, Wei; Li, Wenzhong; Qian, J.

doi:10.1016/s0920-3796(98)00303-2

Cited by 8 publications

(5 citation statements)

References 6 publications

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“…7 of Ref. [5]), the results on the MHD pressure drop gradient are consistent with the theoretical values and keep unchanged with the increase in the interaction number.…”

Section: Resultssupporting

confidence: 83%

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Geometry Sensitivity of Magnetohydrodynamic Duct Flow and Some Abnormal Phenomena

Chen

Zhang

et al. 2009

Plasma Sci. Technol.

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Geometry sensitivity of magnetohydrodynamics (MHD) duct flow and some abnormal phenomena deviating from the classical MHD laws were measured in an experimental investigation of the MHD effect of the flow channel inserter (FCI) duct flow. The results showed that the velocity distribution deviated from the M-type profile on the centre-plane of the cross section of the duct with small slots (in short "S-duct"). The electric potential difference in the duct wall was much lower than that given by the classical electromagnetic laws. The MHD pressure drop was much higher than that from the classical magneto-hydrodynamics theory. These results may help us find some new methods to reduce the MHD pressure drop, or explore other potential applications such as flow structure control.

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“…7 of Ref. [5]), the results on the MHD pressure drop gradient are consistent with the theoretical values and keep unchanged with the increase in the interaction number.…”

Section: Resultssupporting

confidence: 83%

“…3, reproduced from Ref. [5], shows the velocity distribution, V x (z), in a normal duct, the profile of which is in a "M-type" with a value approximately equal to V 0 in the range of Z from 0 to 0.9 b mostly. Also shown in Fig.…”

Section: Resultsmentioning

confidence: 97%

Geometry Sensitivity of Magnetohydrodynamic Duct Flow and Some Abnormal Phenomena

Chen

Zhang

et al. 2009

Plasma Sci. Technol.

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“…In ITER, Toroidal Magnetic field of around 5.3 T at major radius and Poloidal magnetic field of around 4 T are present. Interaction of this induced current with the external magnetic field present can give rise to the large Magneto-hydro-dynamic (MHD) pressure drop due to the resulting Lorentz force [8,9]. The MHD effect not only increases the pumping power requirement for liquid metal circulation but also affects its flow distribution pattern.…”

Section: A N U S C R I P Tmentioning

confidence: 99%

Mechanical and tribological properties of crystalline aluminum nitride coatings deposited on stainless steel by magnetron sputtering

Choudhary

Mishra

et al. 2015

Journal of Nuclear Materials

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“…Coating applications and energy systems enhancement with smart magnetic polymers have also grown substantially in recent years. Relevant technologies in this regard are nuclear engineering, medical engineering exploiting stimuli‐based polymers, and hydromagnetic energy generation . In the context of coating applications, it is critical to regulate heat transfer conditions which lead to improved bonding and homogeneity in engineered polymeric surfaces.…”

Section: Introductionmentioning

confidence: 99%

Numerical exploration of thermal radiation and Biot number effects on the flow of a non‐Newtonian MHD Williamson fluid over a vertical convective surface

Amanulla¹,

Nagendra²,

Rao³

et al. 2017

Heat Trans. Asian Res.

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A theoretical and computational study of the magnetohydrodynamic flow and free convection heat transfer in an electroconductive polymer on the external surface of a vertical plate under radial magnetic field is presented. The Biot number effects are considered at the vertical plate surface via modified boundary conditions. The Williamson viscoelastic model is employed which is representative of certain industrial polymers. The nondimensional, transformed boundary layer equations for momentum and energy are solved with the second‐order accurate implicit Keller box finite difference method under appropriate boundary conditions. Validation of the numerical solutions is achieved via benchmarking with earlier published results. The influence of Weissenberg number (ratio of the relaxation time of the fluid and time scale of the flow), magnetic body force parameter, stream‐wise variable, and Prandtl number on thermo fluid characteristics are studied graphically and via tables. A weak elevation in temperature accompanies increasing Weissenberg number, whereas a significant acceleration in the flow is computed near the vertical plate surface with increasing Weissenberg number. Nusselt number is reduced with increasing Weissenberg number. Skin friction and Nusselt number are both reduced with increasing magnetic field effect. The model is relevant to the simulation of magnetic polymer materials processing.

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MHD effects caused by insulator coating imperfections

Cited by 8 publications

References 6 publications

Geometry Sensitivity of Magnetohydrodynamic Duct Flow and Some Abnormal Phenomena

Geometry Sensitivity of Magnetohydrodynamic Duct Flow and Some Abnormal Phenomena

Mechanical and tribological properties of crystalline aluminum nitride coatings deposited on stainless steel by magnetron sputtering

Numerical exploration of thermal radiation and Biot number effects on the flow of a non‐Newtonian MHD Williamson fluid over a vertical convective surface

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