First Observation of Electrorheological Plasmas

Ivlev, A. V.; Morfill, G. E.; Thomas, Hubertus M.; Räth, Christoph; Joyce, G.; Huber, Peter J.; Kompaneets, R.; Фортов, В. Е.; Lipaev, A. M.; Molotkov, V. I.; Reiter, Thomas; Turin, Mark; Vinogradov, P. V.

doi:10.1103/physrevlett.100.095003

Cited by 115 publications

(106 citation statements)

References 16 publications

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“…The ions then produce wake regions above and below the particles along the electric field axis, while the particles cannot respond. It has been shown [24] that the effective interparticle interaction in this case is determined by the time-averaged wake potential. The field-induced interactions in dusty plasmas are identical to interactions in conventional electrorheological fluids with dipoles d = 0.65Qλν ion /ν th , where Q is the particle charge, λ is the ion screening length, v ion is the ion drift velocity and v th is the ion thermal velocity.…”

Section: Discovery Of the Electrorheological Effect In Complex Plasmasmentioning

confidence: 99%

Complex Plasma Research under Microgravity Conditions: PK‐3 Plus Laboratory on the International Space Station

Khrapak

Molotkov

Lipaev

et al. 2016

Contrib. Plasma Phys.

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Complex (dusty) plasmas are composed of weakly ionised gas and charged microparticles and represent the plasma state of soft matter. Due to the "heavy" component -the microparticles -and the low density of the surrounding medium, the rarefied gas and plasma, it is necessary to perform experiments under microgravity conditions to cover a broad range of experimental parameters which are not available on ground. The investigations have been performed onboard the International Space Station (ISS) with the help of the "Plasma Crystal-3 Plus" (PK-3 Plus) laboratory. It was perfectly suited for the formation of large stable liquid and crystalline systems and provided interesting insights into processes like crystallisation and melting, laning in binary mixtures, electrorheological effects due to ac electric fields and projectile interaction with a strongly coupled complex plasma cloud.

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Section: Discovery Of the Electrorheological Effect In Complex Plasmasmentioning

confidence: 99%

Complex Plasma Research under Microgravity Conditions: PK‐3 Plus Laboratory on the International Space Station

Khrapak

Molotkov

Lipaev

et al. 2016

Contrib. Plasma Phys.

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“…These filamentations maybe related to the well-known negative corona instability [4] seen in the equally spaced bunching of corona tuft or streamers along the length of negatively (but not positively) charged wires in electronegative gases. Recent observation of electrorheological effects in plasmas might open the door to understanding the physics behind such fibrous filamentary structures [9]. …”

Section: Discussionmentioning

confidence: 99%

Schlieren Imaging of the Aerodynamic Flow Field Induced by a Paraelectric Electrohydrodynamic (EHD) Plasma Actuator

Nourgostar

Roth

2008

IEEE Trans. Plasma Sci.

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Schlieren imaging methods respond to density gradients in gases and are used in aerodynamic research to visualize the structure of atmospheric pressure flow fields. We have used this method to study the flow induced in atmospheric pressure air by electrohydrodynamic body forces generated by a single paraelectric plasma actuator energized in the filamentary mode of operation. The schlieren images show the absence of significant vertical flow and also show an induced boundary layer flow no more than a few millimeters thick.Index Terms-Active flow manipulation, atmospheric pressure plasma, electrohydrodynamic body force, filamentary discharge, flow visualization, induced airflow, negative corona, OAUGDP, plasma actuator, schlieren imaging, streamers.

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“…With PK-4 these transitions can be observed using polarity switching: Switching the polarity of the underlying DC-discharge at 1 kHz the ion flow direction is changed. This leads to an attractive dipoledipole interaction and thus to the formation of strings (see Ivlev et al 2008), i.e., chains of particles bound together.…”

Section: Shock Waves and Solitonsmentioning

confidence: 99%

PK-4 Science Activities in Micro-gravity

Fink

Thoma

Morfill

2010

Microgravity Sci. Technol.

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PK-4 is a multi-functional plasma discharge source. Two setups exist for operating plasma discharge experiments on parabolic flight campaigns as well as in laboratory. Another setup for use on the International Space Station ISS is planned. The plasma can be created by a dc-discharge as well as by rf-discharges, coupled inductively. There exist various possibilities to manipulate the introduced microparticles: mechanical (glass-nozzle), optical (high power laser), electrical (EM-pulse-electrode, rf-electrodes, polarityswitching) and thermal (heating coil) manipulation. Several different types of experiments have already been done with PK-4 in parabolic flights: NozzleExperiments (particle jets, transition between fluid and single particle behaviour), Lane-Formation (cloud collisions), Laser driven shear flow, Shock waves and solitons (excitation of shock waves applying electric pulses using the EM-electrode), String-Fluids (electrorheological fluids), and many more.

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First Observation of Electrorheological Plasmas

Cited by 115 publications

References 16 publications

Complex Plasma Research under Microgravity Conditions: PK‐3 Plus Laboratory on the International Space Station

Complex Plasma Research under Microgravity Conditions: PK‐3 Plus Laboratory on the International Space Station

Schlieren Imaging of the Aerodynamic Flow Field Induced by a Paraelectric Electrohydrodynamic (EHD) Plasma Actuator

PK-4 Science Activities in Micro-gravity

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