TITLE

Studies on waves and instabilities in a plasma sheath formed on the outer surface of a space craft

AUTHOR(S)
Aria, Anil K.; Malik, Hitendra K.
PUB. DATE
April 2008
SOURCE
Physics of Plasmas;Apr2008, Vol. 15 Issue 4, p043501
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using the normal mode analysis, the number of possible modes is obtained in a magnetized inhomogeneous plasma sheath formed during the motion of a space craft which consists of negative ions (due to dust) along with the positive ions and the isothermal electrons. In addition to three propagating modes with phase velocities λ1, λ2, and λ3 such that λ1<λ2<λ3, two types of instabilities with growth rates γ1 and γ2 also occur in such a plasma sheath. The growth rate γ1 is increased with the negative to positive ion density ratio r0, ion temperature T, and obliqueness θ of the magnetic field B0. The growth rate γ2 of the other instability gets lower with the density ratio r0 but gets higher with the temperature T. The growth rate γ2 is sensitive to the temperature T, whereas the growth rate γ1 gets prominently changed with the density ratio r0. The increase in the growth rate γ1 with the obliqueness θ is more pronounced under the effect of stronger magnetic field. On other hand, the phase velocity λ1 shows weak dependence on r0 and T (though it gets larger) but it gets significantly changed (increased) for the larger obliqueness θ. The phase velocity λ2 gets larger with r0, B0, and θ and becomes lower for the higher temperature T. The phase velocity λ3 is decreased for the higher values of r0 and B0 and is increased for the larger values of T and θ.
ACCESSION #
31881476

 

Related Articles

  • Hyper Space. Norris, Guy // Aviation Week & Space Technology;7/18/2011, Vol. 173 Issue 26, p66 

    The article examines research by European aerospace industries firms and the European Space Agency (ESA) on hypersonic planes and so-called spaceliners, space vehicles used in Earth transportation. The Lapcat program researching the aerodynamics and propulsion of a hypersonic plane is discussed....

  • New electromagnetic particle simulation code for the analysis of spacecraft-plasma interactions. Miyake, Yohei; Usui, Hideyuki // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p062904 

    A novel particle simulation code, the electromagnetic spacecraft environment simulator (EMSES), has been developed for the self-consistent analysis of spacecraft-plasma interactions on the full electromagnetic (EM) basis. EMSES includes several boundary treatments carefully coded for both...

  • Hypersonic MHD Propulsion System Integration for the Mercury Lightcraft. Myrabo, L. N.; Rosa, R. J. // AIP Conference Proceedings;2004, Vol. 702 Issue 1, p544 

    Introduced herein are the design, systems integration, and performance analysis of an exotic magnetohydrodynamic (MHD) slipstream accelerator engine for a single-occupant “Mercury” lightcraft. This ultra-energetic, laser-boosted vehicle is designed to ride a ‘tractor...

  • Aircraft and spacecraft share designs. Gardner, Dana // Design News;4/24/89, Vol. 45 Issue 8, p28 

    Focuses on the National Aerospace Plane, High-Speed Commercial Transport and space shuttle replacement projects in the U.S. Demand for hypersonic vehicle and supersonic craft; Launch of the first National Aerospace Plane test flight to low earth orbit; Replacements for the space shuttle program.

  • Boeing Announces Involvement In Major Australia-U.S. Hypersonics Research Project. Sirak, Michael // Defense Daily;1/5/2007, p1 

    The article reports on the involvement of Boeing in the Australian-U.S. hypersonics research program. The research program aims to validate the performance of advanced high-speed engines that could one day power ultra-fast missiles, strike aircraft and reusable space vehicles. Boeing also...

  • Particle Simulation of Electrodynamic Aerobraking in a Hypersonic Rarefied Regime. Katsurayama, Hiroshi; Abe, Takashi // AIP Conference Proceedings;5/20/2011, Vol. 1333 Issue 1, p1301 

    To investigate the electrodynamic aerobraking in a hypersonic rarefied regime, the electromagnetic flow control on a reentry Hayabusa-shape capsule entering a pure nitrogen atmosphere is investigated using the Direct Simulation Monte Carlo method with a simple ion particle movement method like...

  • Pollux Flies at Last. Nativi, Andy; Taverna, Michael A. // Aviation Week & Space Technology;4/19/2010, Vol. 172 Issue 15, p31 

    The article discusses the reusable launch vehicle research program in Italy and its launch of the test vehicle Pollux. According to the article, the Unmanned Space Vehicle (USV) program is intended to investigate the hypersonic reentry and transatmospheric flight. The dimensions of the Pollux...

  • North Star. Dumiak, Michael // Aviation Week & Space Technology;9/3/2012, Vol. 174 Issue 32, p86 

    The article discusses the German Sharp Edged Flight Experiment (Shefex II) that launched a rocket-boosted hypersonic demonstrator on June 22, 2012 to validate systems and design technology for the improvement of spacecraft atmospheric reentry and landing maneuverability. Topics include the...

  • Reaching 100 Km. Dornheim, Michael A. // Aviation Week & Space Technology;8/9/2004, Vol. 161 Issue 6, p45 

    American Mojavc Aerospace Ventures is preparing to go for the Ansari X-Prize September 29, 2004 after having shown it can reach the 100-km. But that flight only went 407 ft. higher than 100 km., while it was planned to go 30,000 ft. higher. It follows the aircraft's course from the last minute...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics