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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: | |