NDLI: An investigation of electromagnetic wave propagation in plasma by shock tube

Content Provider	Springer Nature Link
Author	Naiyi, Zhu Xuefen, Li Lishun, Huang Xilong, Yu Qiansuo, Yang
Copyright Year	2004
Abstract	This paper presents the electromagnetic wave propagation characteristics in plasma and the attenuation coefficients of the microwave in terms of the parametersn e ,v, ω,L, ω b . The ϕ800 mm high temperature shock tube has been used to produce a uniform plasma. In order to get the attenuation of the electromagnetic wave through the plasma behind a shock wave, the microwave transmission has been used to measure the relative change of the wave power. The working frequency isf=(2∼35) GHz (ω=2πf, wave length λ=15 cm ∼ 8 mm). The electron density in the plasma isn e =(3×1010∼1×1014) cm−3. The collision frequencyv=(1×108∼6×1010) Hz. The thickness of the plasma layerL=(2∼80) cm. The electron circular frequency ω b =eB 0/m e, magnetic flux densityB 0=(0∼0.84) T. The experimental results show that when the plasma layer is thick (such asL/λ ≥10), the correlation between the attenuation coefficients of the electromagnetic waves and the parametersn e ,v, ω,L determined from the measurements are in good agreement with the theoretical predictions of electromagnetic wave propagations in the uniform infinite plasma. When the plasma layer is thin (such as when bothL and λ are of the same order), the theoretical results are only in a qualitative agreement with the experimental observations in the present parameter range, but the formula of the electromagnetic wave propagation theory in an uniform infinite plasma can not be used for quantitative computations of the correlation between the attenuation coefficients and the parametersn e ,v, ω,L. In fact, if ω < ω p ,v 2 ≪ ω2, the power attenuationsK of the electromagnetic waves obtained from the measurements in the thin-layer plasma are much smaller than those of the theoretical predictions. On the other hand, if ω > ωp,v 2 ≪ ω2 (justv≈f), the measurements are much larger than the theoretical results. Also, we have measured the electromagnetic wave power attenuation value under the magnetic field and without a magnetic field. The result indicates that the value measured under the magnetic field shows a distinct improvement.
Starting Page	212
Ending Page	218
Page Count	7
File Format	PDF
ISSN	05677718
Journal	Acta Mechanica Sinica
Volume Number	20
Issue Number	3
e-ISSN	16143116
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	microwave plasma shock tube Mechanics, Fluids, Thermodynamics Numerical and Computational Methods in Engineering Theoretical and Applied Mechanics Engineering Fluid Dynamics
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering Computational Mechanics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Temperature measurement of reflected shock wave by using chemical indicator

Investigation on nonequlibrium radiation and relaxation phenomena in shock tubes

Oxyhydrogen combustion and detonation driven shock tube

The interaction between shock waves and foam in a shock tube

Transmission characteristics of EM wave in a finite thickness plasma

Numerical investigation of Richtmyer-Meshkov instability driven by cylindrical shocks

The interaction between shock waves and solid spheres arrays in a shock tube

Elastic impact on finite Timoshenko beam

Gradient surface ply model of SH wave propagation in SAW sensors

An investigation of electromagnetic wave propagation in plasma by shock tube

Similar Documents

Temperature measurement of reflected shock wave by using chemical indicator

Investigation on nonequlibrium radiation and relaxation phenomena in shock tubes

Oxyhydrogen combustion and detonation driven shock tube

The interaction between shock waves and foam in a shock tube

Transmission characteristics of EM wave in a finite thickness plasma

Numerical investigation of Richtmyer-Meshkov instability driven by cylindrical shocks

The interaction between shock waves and solid spheres arrays in a shock tube

Elastic impact on finite Timoshenko beam

Gradient surface ply model of SH wave propagation in SAW sensors

An investigation of electromagnetic wave propagation in plasma by shock tube