{"created":"2023-05-15T14:53:47.859476+00:00","id":73258,"links":{},"metadata":{"_buckets":{"deposit":"cd31236e-cb75-4594-8fa0-4a55efc10f3b"},"_deposit":{"created_by":1,"id":"73258","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"73258"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00073258","sets":["10:27"]},"author_link":["721801","721800"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2016-06-28","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Tokamak edge turbulence plays an important role in determining fluxes towards a tokamak diverter which are critical for realization of fusion power stations. In particular, understanding the transition from a low confinement state (L-mode) to a high confinement state (H-mode) is one of critical issues.  The gyrokinetic/gyrofluid models are the most sophisticated models for turbulence studies in magnetized plasmas, but the L-H transition has not been reproduced by the gyrokinetic/gyrofluid simulations so far. In the first place, the standard gyrokinetic model does not consider a fast flow (strong electric field) observed in H-mode plasmas and its applicability to edge plasmas is unclear. We have derived a guiding-center Lagrangian considering the fast flow. It is suitable for the L-H transition simulation because, in contrast to the conventional models for flowing plasmas, its symplectic part does not include a flow term as in the standard model. Its Hamiltonian has high-order flow terms including a cubic nonlinear term beyond the standard model in which a quadratic term is included. Measurements from a turbulence simulation with conventional tokamak L-mode edge parameters indicate that effects of the cubic nonlinear term are small and keeping the quadratic nonlinear term seems to be sufficient for tokamak edge simulations in a certain parameter regime.","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"18th International Congress on Plasma Physics","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"宮戸, 直亮"}],"nameIdentifiers":[{"nameIdentifier":"721800","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"宮戸 直亮","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"721801","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"Gyrokinetic modeling issues of edge plasma","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Gyrokinetic modeling issues of edge plasma"}]},"item_type_id":"10005","owner":"1","path":["27"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-07-12"},"publish_date":"2016-07-12","publish_status":"0","recid":"73258","relation_version_is_last":true,"title":["Gyrokinetic modeling issues of edge plasma"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:31:17.839044+00:00"}