@article{oai:repo.qst.go.jp:00080028, author = {Kosuga, Y. and Kin, Fumiyoshi and Sasaki, M. and Kin, Fumiyoshi}, issue = {5-6}, journal = {Contributions to Plasma Physics}, month = {Mar}, note = {In this work, we discuss the physics behind the excitation of non-linear streamerflows in drift wave turbulence and how to selectively excite these flows. Streamerflows are modelled as a non-linear, radially elongated convective cell in driftwave turbulence. It is shown that density modulation is key for exciting streamerflows. We show that streamer flows have a finite frequency, albeit smaller thanthat of drift waves. Streamers propagate in the ion direction. These theoreticalpredictions are compared against experimental data, which shows reasonableagreement. Finally, the scrape-off layer width set by streamer flows is calculated,and a scaling law against macroscopic plasma parameters is obtained.}, title = {Scrape-off layer width set by non-linear streamer flows indrift wave turbulence}, volume = {60}, year = {2020} }