Sökning: "resistive shell modes"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden resistive shell modes.

  1. 1. Tearing mode and resistive-wall mode dynamics in the reversed field pinch

    Författare :Jenny-Ann Malmberg; KTH; []
    Nyckelord :Nuclear fusion; Reversed field pinch; Resistive instabilities; Wall locked modes; Tearing modes; Resistive shell modes; Field errors; EXTRAP-T2; EXTRAP-T2R; TPE-RX;

    Sammanfattning : .... LÄS MER

  3. 2. Experimental studies of tearing mode and resistive wall mode dynamics in the reversed field pinch configuration

    Författare :Jenny-Ann Malmberg; KTH; []
    Nyckelord :Nuclear fusion; reversed field pinch; resistive wall instabilities; wall locked modes; tearing modes; resistive shell modes; field errors; Extrap T2; Extrap T2R; TPE-RX;

    Sammanfattning : It is relatively straightforward to establish equilibrium inmagnetically confined plasmas, but the plasma is frequentlysucceptible to a variety of instabilities that are driven bythe free energy in the magnetic field or in the pressuregradient. These unstable modes exhibit effects that affect theparticle, momentum and heat confinement properties of theconfiguration. LÄS MER

  4. 3. Resistive Wall Mode Stability and Control in the Reversed Field Pinch

    Författare :Dmitriy Yadikin; Per Brunsell; Mikhail Gryaznevich; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Resistive wall modes; RWM; active control; feedback; MHD modes; Reversed-Field pinch; RFP; intelligent shell; mode control; Electrophysics; Elektrofysik;

    Sammanfattning : Control of MHD instabilities using a conducting wall together with external magnetic fields is an important route to improved performance and reliability in fusion devices. Active control of MHD modes is of interest for both the Advanced Tokamak and the Reversed Field Pinch (RFP) configurations. LÄS MER

  5. 4. Feedback control of resistive wall modes in the reversed field pinch

    Författare :Dimitry Yadikin; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Physics; Reversed eld pinch; current driven modes; thin resistive wall; resistive wall; Fysik; Physics; Fysik;

    Sammanfattning : A wide range of unstable current driven MHD modes is present in the re- versed τeld pinch (RFP) conτguration. An ideally conducting wall facing the plasma can stabilize the ideal MHD modes. LÄS MER

  7. 5. Model predictive control of resistive wall modes in the reversed-field pinch

    Författare :Agung Chris Setiadi; Per Brunsell; Lorenzo Frassinetti; Cristian Rojas; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The reversed-field pinch (RFP) is a magnetic confinement fusion (MCF) device. It exhibits a variety of unstable modes that can be explained by magnetohydrodynamic (MHD) theory. A particular unstable mode that is treated in this work is the resistive wall mode (RWM), which occurs when the shell of the device has finite conductivity. LÄS MER