|
View: |
Part 1: Document Description
|
|
Citation |
|
|---|---|
|
Title: |
Multi-species collisions for delta-f gyrokinetic simulations: Implementation and verification with GENE |
|
Identification Number: |
doi:10.7910/DVN/OQ2BSJ |
|
Distributor: |
Harvard Dataverse |
|
Date of Distribution: |
2021-06-27 |
|
Version: |
2 |
|
Bibliographic Citation: |
Crandall, P.; Jarema, D.; Doerk, H.; Pan, Q.; Merlo, G.; Görler, T.; Navarro, A. Bañón; Told, D.; Maurer, M.; Jenko, F., 2021, "Multi-species collisions for delta-f gyrokinetic simulations: Implementation and verification with GENE", https://doi.org/10.7910/DVN/OQ2BSJ, Harvard Dataverse, V2 |
|
Citation |
|
|
Title: |
Multi-species collisions for delta-f gyrokinetic simulations: Implementation and verification with GENE |
|
Identification Number: |
doi:10.7910/DVN/OQ2BSJ |
|
Authoring Entity: |
Crandall, P.; Jarema, D.; Doerk, H.; Pan, Q.; Merlo, G.; Görler, T.; Navarro, A. Bañón; Told, D.; Maurer, M.; Jenko, F. |
|
Distributor: |
Harvard Dataverse |
|
Holdings Information: |
https://doi.org/10.7910/DVN/OQ2BSJ |
|
Study Scope |
|
|
Keywords: |
Physics, collision operators, energy dissipation characteristics, Finite Larmor radius effects, global simulation, gyrokinetic codes, gyrokinetic simulations, machine precision, magnetically confined fusion plasmas |
|
Abstract: |
A multi-species linearized collision operator based on the model developed by Sugama et al. has been implemented in the nonlinear gyrokinetic code, GENE. Such a model conserves particles, momentum, and energy to machine precision, and is shown to have negative definite free energy dissipation characteristics, satisfying Boltzmann’s H-theorem, including for realistic mass ratio. Finite Larmor Radius (FLR) effects have also been implemented into the local version of the code. For the global version of the code, the collision operator has been developed to allow for block-structured velocity space grids, allowing for computationally tractable collisional global simulations. The validity of the collision operator has been demonstrated by relaxation and conservation tests, as well as appropriate benchmarks. The newly implemented operator shall be used in future simulations to study magnetically confined fusion plasma turbulence and transport in more extreme regions with higher collisionality. |
|
Notes: |
<a href="http://library.psfc.mit.edu/catalog/reports/2020/20ja/20ja038/abstract.php">PSFC REPORT PSFC/JA-20-38</a><br /><br />This work has been supported by the DOE FES Award DE-SC0016073. |
|
Methodology and Processing |
|
|
Sources Statement |
|
|
Data Access |
|
|
Notes: |
This dataset is made available without information on how it can be used. You should communicate with the Contact(s) specified before use. |
|
Other Study Description Materials |
|
|
Label: |
20ja038_archival_manuscript.pdf |
|
Text: | |
|
Notes: |
application/pdf |