Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Cooperative Agreement DE-FC02-ER54855: MIT participation in the Center for Simulation of Wave Interactions with MHD, led by the Oak Ridge National Laboratory.
SCIDAC - Simulation of Wave Interactions with MHD.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Cooperative Agreement DE-FC02-ER54855: MIT participation in the Center for Simulation of Wave Interactions with MHD, led by the Oak Ridge National Laboratory.
SciDAC - Center for Simulation of Wave Interactions with MHD -- General Atomics Support of ORNL Collaboration
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The Center for Simulation of Wave Interactions with Magnetohydrodynamics (SWIM) project is dedicated to conduct research on integrated multi-physics simulations. The Integrated Plasma Simulator (IPS) is a framework that was created by the SWIM team. It provides an integration infrastructure for loosely coupled component-based simulations by facilitating services for code execution coordination, computational resource management, data management, and inter-component communication. The IPS framework features improving resource utilization, implementing application-level fault tolerance, and support of the concurrent multi-tasking execution model. The General Atomics (GA) team worked closely with other team members on this contract, and conducted research in the areas of computational code monitoring, meta-data management, interactive visualization, and user interfaces. The original website to monitor SWIM activity was developed in the beginning of the project. Due to the amended requirements, the software was redesigned and a revision of the website was deployed into production in April of 2010. Throughout the duration of this project, the SWIM Monitoring Portal (http://swim.gat.com:8080/) has been a critical production tool for supporting the project's physics goals.
Simulation of Wave Interactions with Magnetohydrodynamics (SWIM) SciDAC (Scientific Discovery Through Advanced Computing) Project
Author: Final Report for "Tech-X Corporation Work for the SciDAC Center for Simulation of RF Wave Interactions with Magnetohydrodynamics (SWIM)."
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Work carried out by Tech-X Corporation for the DoE SciDAC Center for Simulation of RF Wave Interactions with Magnetohydrodynamics (SWIM; U.S. DoE Office of Science Award Number DE-FC02-06ER54899) is summarized and is shown to fulfil the project objectives. The Tech-X portion of the SWIM work focused on the development of analytic and computational approaches to study neoclassical tearing modes and their interaction with injected electron cyclotron current drive. Using formalism developed by Hegna, Callen, and Ramos [Phys. Plasmas 16, 112501 (2009); Phys. Plasmas 17, 082502 (2010); Phys. Plasmas 18, 102506 (2011)], analytic approximations for the RF interaction were derived and the numerical methods needed to implement these interactions in the NIMROD extended MHD code were developed. Using the SWIM IPS framework, NIMROD has successfully coupled to GENRAY, an RF ray tracing code; additionally, a numerical control system to trigger the RF injection, adjustment, and shutdown in response to tearing mode activity has been developed. We discuss these accomplishments, as well as prospects for ongoing future research that this work has enabled (which continue in a limited fashion under the SciDAC Center for Extended Magnetohydrodynamic Modeling (CEMM) project and under a baseline theory grant). Associated conference presentations, published articles, and publications in progress are also listed.
SciDAC 2007
Author: Final Technical Report - SciDAC Cooperative Agreement
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Final technical report for research performed by Dr. Thomas G. Jenkins in collaboration with Professor Dalton D. Schnack on SciDAC Cooperative Agreement: Center for Wave Interactions with Magnetohydrodyanics, DE-FC02-06ER54899, for the period of 8/15/06 - 8/14/11. This report centers on the Slow MHD physics campaign work performed by Dr. Jenkins while at UW-Madison and then at Tech-X Corporation. To make progress on the problem of RF induced currents affect magnetic island evolution in toroidal plasmas, a set of research approaches are outlined. Three approaches can be addressed in parallel. These are: (1) Analytically prescribed additional term in Ohm's law to model the effect of localized ECCD current drive; (2) Introduce an additional evolution equation for the Ohm's law source term. Establish a RF source 'box' where information from the RF code couples to the fluid evolution; and (3) Carry out a more rigorous analytic calculation treating the additional RF terms in a closure problem. These approaches rely on the necessity of reinvigorating the computation modeling efforts of resistive and neoclassical tearing modes with present day versions of the numerical tools. For the RF community, the relevant action item is - RF ray tracing codes need to be modified so that general three-dimensional spatial information can be obtained. Further, interface efforts between the two codes require work as well as an assessment as to the numerical stability properties of the procedures to be used.
Energy and Water Development Appropriations for 2006
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water DevelopmentPublisher:
ISBN:
Category : Federal aid to energy development
Languages : en
Pages : 1934
Book Description
MHD Wave Interaction with Coronal Active Region Plasmas
Author: Soheil Vasheghani FarahaniPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Energy and Water Development Appropriations for 2006: Dept. of the Army, Corps of Engineers
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water DevelopmentPublisher:
ISBN:
Category : Federal aid to energy development
Languages : en
Pages : 1928
Book Description
2nd ITER International Summer School
Author: Sanae-I ItohPublisher: American Institute of Physics
ISBN:
Category : Science
Languages : en
Pages : 266
Book Description
This book contains the lectures of the 2nd ITER International Summer School (2008), which was held in conjunction with the 47th Summer School of JSPF for Young Plasma Scientists at Kyushu University during July 22-25, 2008. The theme of the school, “Confinement (from device to plasma)”, was to provide a comprehensive knowledge for fusion research in the ITER era. Fusion research will enter a new phase with ITER, characterized by plasmas with substantial fusion reaction rates, run by an international collaboration effort. Recognizing this new challenge, this book uniquely addresses the definition of mission, the design of device and the knowledge bases for its completion in a consistent manner. This book aims to prepare young researchers to tackle the current and anticipated challenges of magnetic fusion devices, and to disseminate the global knowledge required for a timely and competent exploitation of the ITER physics potential.