Abstract
The core-crash sawtooth caused by m/n = 2/1 double tearing mode (DTM) in Tokamak is investigated using a three-dimensional toroidal MHD code (CLT). It is found that mode–mode coupling effect plays a crucial role during the core-crash sawtooth. The n = 0 component and n > 1 components generated by mode–mode coupling of the n = 1 modes take up more than 40% of the total kinetic energy and become unneglectable during the core-crash sawtooth. The n = 0 component is crucial for the saturation of DTM. Without the n = 0 component, the DTM will not saturate. The high n components are responsible for the explosive growth of the DTM that finally results in the fast crash of the core plasma temperature.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
