DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 386: Scaling of peak divertor heat flux and heat flux profile widths during MHD free L-mode operation | ||
| Name: | Phil West ( |
Affiliation: | General Atomics |
| Research Area: | Thermal Transport in the Plasma Boundary | Presentation time: | Not requested | Co-Author(s): | P. West, C. Lasnier, J. Boedo, T. Petrie, G. Porter, M. Groth. P. Stangeby, D. Hill |
| Description: | Validate (or not) the classical models of SOL and divertor heat flow contained in predictive and interpretive codes, specifically UEDGE and OEDGE. Use L-mode, MHD free plasmas as the closest as the closest experimental approximation to the simple 2D quasi-steady models. Perform connection length and density scans for scaling. | ||
| Experimental Approach/Plan: | |||
| Background: | A cross machine database of heat flux profile scaling developed for ITER has not produced a convincing scaling for projection of heat flux profiles to ITER. This proposal is to benchmark the existing 2D codes based on classical parallel transport under the simple as possible plasma (SAPP) conditions. Validating this rather simple model of SOL plasma transport is key to the validation of models under more complex scenarios.
DIII-D is in a position to get a rather complete set of profile and relevant SOL transport data and can fine tune the plasma parameters to optimize these physics scaling studies. | ||
| Resource Requirements: | |||
| Diagnostic Requirements: | Essential:
IRTV Thomson CER Bolometry, X-point and Midplane plunging probes Lower Langmuir Probes + Upper Baffle Knee Probe CO2 interferometers Filterscopes Desired: Thermocouple array Visible Bremsstralung SPRED MDS Spectrometry | ||
| Analysis Requirements: | Standard Divertor Diagnostic Annalysis | ||
| Other Requirements: | -- | ||
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