The FDTD Simulating the Attenuation of a Plan Electromagnetic Wave Crossing of a Radome in the Weather Radar

Saraiva, Ernandes Aparecido; Souza, M. Fernandez; Filho, Horácio Tertuliano; Artuzi, W.A.; Benetti, Carolina; Dartora, C. A.

doi:10.1109/irs.2006.4338152

Cited by 2 publications

(2 citation statements)

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“…Three metallic substrates, varying in magnetic permeability, from relative permeability near 1 (copper and stainless steel) to around 2000 (mild steel), − were tested. The test sections were a mild steel square plate (50 × 50 mm 2 , thickness 1.990 mm), a 316 stainless steel (50 × 50 mm 2 , thickness 1.852 mm), and a 99.9% copper sheet (50 × 50 mm 2 , thickness 3.148 mm, Goodfellow, 214-378-94).…”

Section: Ifdg Conceptmentioning

confidence: 99%

Integrated Fluid Dynamic Gauge for Measuring the Thickness of Soft Solid Layers Immersed in Opaque, Viscous, and/or Non-Newtonian Liquids in Situ

Tsai

Hallmark

Wilson

2019

Ind. Eng. Chem. Res.

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A new fluid dynamic gauging (FDG) device for monitoring the thickness of soft solid layers immersed in liquid in real time and in situ is demonstrated. An inductive proximity sensor is incorporated in the FDG nozzle head to allow the distance between the head and the layer, and an underlying metal substrate, to be determined simultaneously. The concept is demonstrated for copper and mild and stainless steel substrates for coated substrates and for liquids spanning a range of opacity and viscosity including water; whole ultrahigh-temperature (UHT) milk and commercial washing-up liquid (both opaque); and 1 and 3 wt % carboxymethylcellulose solutions (exhibiting non-Newtonian behavior). The resolution of the inductive sensor was ±10 μm or better and was unaffected by the liquid. Computational fluid dynamics simulations using OpenFOAM gave good agreement with experimental discharge coefficients for viscous and non-Newtonian fluids. A short study of the growth of ice crystals from skimmed UHT milk is presented.

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Section: Ifdg Conceptmentioning

confidence: 99%

Integrated Fluid Dynamic Gauge for Measuring the Thickness of Soft Solid Layers Immersed in Opaque, Viscous, and/or Non-Newtonian Liquids in Situ

Tsai

Hallmark

Wilson

2019

Ind. Eng. Chem. Res.

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“…Therefore, researchers focus on how to prevent and eliminate the influence of water or ice water on the performance of radome has been studied. [4][5][6][7] There are few studies on the process of water state change and the characteristic of electromagnetic (EM) scattering in the relevant literature, which only focusing on the experiment methods.…”

Section: Introductionmentioning

confidence: 99%

Study of scattering characteristic of thin ice‐water layers covered dielectric material utilizing hybrid implicit‐explicit finite difference time‐domain method

Yan

Cao

Wang

2021

Int J Numerical Modelling

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In the paper, a hybrid implicit-explicit finite difference time-domain (HIE-FDTD) method is applied, and the related calculation formula of the HIE algorithm is derived in detail. Using the HIE-FDTD method, the scattering characteristics of dielectric objects covered with very thin ice water layers are studied.The dispersive medium model of the mixture of water and ice is expressed in Debye form and can be calculated by the auxiliary difference equation technique. It is found that the change of the scattering characteristics of the water ice mixing layer mainly depends on the proportion of water in the ice water mixture, and describes the process of ice melting into water, which leads to the corresponding changes of reflectivity, transmittance, and absorptivity. Finally, the simulation results show that the HIE-FDTD method has higher efficiency than the conventional FDTD without losing accuracy.

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The FDTD Simulating the Attenuation of a Plan Electromagnetic Wave Crossing of a Radome in the Weather Radar

Cited by 2 publications

References 0 publications

Integrated Fluid Dynamic Gauge for Measuring the Thickness of Soft Solid Layers Immersed in Opaque, Viscous, and/or Non-Newtonian Liquids in Situ

Integrated Fluid Dynamic Gauge for Measuring the Thickness of Soft Solid Layers Immersed in Opaque, Viscous, and/or Non-Newtonian Liquids in Situ

Study of scattering characteristic of thin ice‐water layers covered dielectric material utilizing hybrid implicit‐explicit finite difference time‐domain method

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