DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2013 EXPERIMENTAL CAMPAIGN Review | Direct submission with log-in | Request submission without log-in

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Title 27: COupling between core and SOL parallel flow
Name:Jose Boedo boedo@fusion.gat.com Affiliation:University of California, San Diego
Research Area:Divertor & SOL Physics Presentation time: Not requested
Co-Author(s): D. Rudakov, C. Tsui, T. Ronglien, G. Porter, E. Belli, J. Candy. ITPA Joint Experiment : No
Description: Recent results have shown that the intrinsic rotation source, co-Ip is large and concentrated right inside the LCFS. This source MUST diffuse out but there is no quantification of this process so we propose to quantify it. The intrinsic torque scales as GradP. Recent work also has calculated the poloidal variation of velocity, using NEO, , base on classical.neoclassical physics. ITER IO Urgent Research Task : No
Experimental Approach/Plan: We propose to: 1) vary the intrinsic torque by varying GradP and inspect the SOL velocity for response and 2) measure the SOL/edge velocity at various poloidal locations to verify the (mostly) diamagnetic physics determines the poloidal variations
Background: Previous work to investigate intrinsic rotation and poloidal variation of D+ parallel velocity
Resource Requirements: DIII-D ECH and NBI blips and various diagnostics
Diagnostic Requirements: scanning probes (mid and XPT ) and swing probes, CER
Analysis Requirements: analyze above diagnostic data and Neo computations
Other Requirements: