Ideal MHD properties for proposed noncircular tokamaks
We obtain Double Dee, TFXC-C, Big Dee, and JET equlibria which are optimized with respect to both shape and current profile for stability to ideal MHD modes. With a wall reasonably far from the plasma surface we find that the external kink constrains q/sub 1/ to be above two, where q/sub 1/ is the p...
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| Veröffentlicht in: | J. Comput. Phys.; (United States) 1986-10, Vol.66 (2), p.458-468 |
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| container_title | J. Comput. Phys.; (United States) |
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| creator | HELTON, F. J GREENE, J. M |
| description | We obtain Double Dee, TFXC-C, Big Dee, and JET equlibria which are optimized with respect to both shape and current profile for stability to ideal MHD modes. With a wall reasonably far from the plasma surface we find that the external kink constrains q/sub 1/ to be above two, where q/sub 1/ is the plasma surface value of the safety factor, and the ballooning mode limits the value of ..beta... Then a relevant stable ..beta.. value for the Double Dee reactor design is over 7%. Such a Double Dee equilibrium is not in a separated second stability region and thus does not have a problem with accessibility. A relevant stable ..beta.. value for the TFCX-C reactor design is over 6%. Equivalent relevant stable ..beta.. values for the Big Dee (17%) and JET (7%) are included for calibration purposes. We compare these relevant stable ..beta.. values with the ..beta..'s determined by two recent scaling laws. |
| doi_str_mv | 10.1016/0021-9991(86)90075-6 |
| format | Article |
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We compare these relevant stable ..beta.. values with the ..beta..'s determined by two recent scaling laws.</description><identifier>ISSN: 0021-9991</identifier><identifier>EISSN: 1090-2716</identifier><identifier>DOI: 10.1016/0021-9991(86)90075-6</identifier><language>eng</language><publisher>Amsterdam: Elsevier</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; 700107 - Fusion Energy- Plasma Research- Instabilities ; BALLOONING INSTABILITY ; EQUILIBRIUM ; Exact sciences and technology ; FLUID MECHANICS ; HYDRODYNAMICS ; INSTABILITY ; KINK INSTABILITY ; Magnetic confinement and equilibrium ; MAGNETOHYDRODYNAMICS ; MECHANICS ; Physics ; Physics of gases, plasmas and electric discharges ; Physics of plasmas and electric discharges ; PLASMA INSTABILITY ; PLASMA MACROINSTABILITIES ; SCALING LAWS ; TFCX REACTORS ; THERMONUCLEAR REACTORS ; TOKAMAK TYPE REACTORS</subject><ispartof>J. Comput. 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Phys.; (United States)</title><description>We obtain Double Dee, TFXC-C, Big Dee, and JET equlibria which are optimized with respect to both shape and current profile for stability to ideal MHD modes. With a wall reasonably far from the plasma surface we find that the external kink constrains q/sub 1/ to be above two, where q/sub 1/ is the plasma surface value of the safety factor, and the ballooning mode limits the value of ..beta... Then a relevant stable ..beta.. value for the Double Dee reactor design is over 7%. Such a Double Dee equilibrium is not in a separated second stability region and thus does not have a problem with accessibility. A relevant stable ..beta.. value for the TFCX-C reactor design is over 6%. Equivalent relevant stable ..beta.. values for the Big Dee (17%) and JET (7%) are included for calibration purposes. We compare these relevant stable ..beta.. values with the ..beta..'s determined by two recent scaling laws.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>700107 - Fusion Energy- Plasma Research- Instabilities</subject><subject>BALLOONING INSTABILITY</subject><subject>EQUILIBRIUM</subject><subject>Exact sciences and technology</subject><subject>FLUID MECHANICS</subject><subject>HYDRODYNAMICS</subject><subject>INSTABILITY</subject><subject>KINK INSTABILITY</subject><subject>Magnetic confinement and equilibrium</subject><subject>MAGNETOHYDRODYNAMICS</subject><subject>MECHANICS</subject><subject>Physics</subject><subject>Physics of gases, plasmas and electric discharges</subject><subject>Physics of plasmas and electric discharges</subject><subject>PLASMA INSTABILITY</subject><subject>PLASMA MACROINSTABILITIES</subject><subject>SCALING LAWS</subject><subject>TFCX REACTORS</subject><subject>THERMONUCLEAR REACTORS</subject><subject>TOKAMAK TYPE REACTORS</subject><issn>0021-9991</issn><issn>1090-2716</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1986</creationdate><recordtype>article</recordtype><recordid>eNo9js1KxDAURoMoWEffwEURF7qI3pu0abKU8WcGRtzoulzTBOt0mpLEhW9vccTV4YPD4WPsHOEGAdUtgEBujMErra4NQFNzdcAKBANcNKgOWfGvHLOTlD4BQNeVLphad46G8nl1X04xTC7m3qXSh_g7Q3JdOYbR9tF-DRTLHLa0o206ZUeehuTO_rhgb48Pr8sV37w8rZd3Gx6wwsw7qdA01nsUjfPviLqWBEJaoxWQ1IhAwilZaTSAnVPWOdNZ9DM9eSsX7GLfDSn3bbJ9dvbDhnF0Nrc1gjDKzNLlXpooWRp8pPlwaqfY7yh-t1pArWQjfwDshFUw</recordid><startdate>19861001</startdate><enddate>19861001</enddate><creator>HELTON, F. 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M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-o141t-d36197cff127efb11853a023c9860a38110a2e63481901de6cee9dc1fceefafc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1986</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>700107 - Fusion Energy- Plasma Research- Instabilities</topic><topic>BALLOONING INSTABILITY</topic><topic>EQUILIBRIUM</topic><topic>Exact sciences and technology</topic><topic>FLUID MECHANICS</topic><topic>HYDRODYNAMICS</topic><topic>INSTABILITY</topic><topic>KINK INSTABILITY</topic><topic>Magnetic confinement and equilibrium</topic><topic>MAGNETOHYDRODYNAMICS</topic><topic>MECHANICS</topic><topic>Physics</topic><topic>Physics of gases, plasmas and electric discharges</topic><topic>Physics of plasmas and electric discharges</topic><topic>PLASMA INSTABILITY</topic><topic>PLASMA MACROINSTABILITIES</topic><topic>SCALING LAWS</topic><topic>TFCX REACTORS</topic><topic>THERMONUCLEAR REACTORS</topic><topic>TOKAMAK TYPE REACTORS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HELTON, F. J</creatorcontrib><creatorcontrib>GREENE, J. M</creatorcontrib><creatorcontrib>GA Technologies Inc., San Diego, California 92138</creatorcontrib><collection>Pascal-Francis</collection><collection>OSTI.GOV</collection><jtitle>J. Comput. Phys.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HELTON, F. J</au><au>GREENE, J. M</au><aucorp>GA Technologies Inc., San Diego, California 92138</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ideal MHD properties for proposed noncircular tokamaks</atitle><jtitle>J. Comput. Phys.; (United States)</jtitle><date>1986-10-01</date><risdate>1986</risdate><volume>66</volume><issue>2</issue><spage>458</spage><epage>468</epage><pages>458-468</pages><issn>0021-9991</issn><eissn>1090-2716</eissn><abstract>We obtain Double Dee, TFXC-C, Big Dee, and JET equlibria which are optimized with respect to both shape and current profile for stability to ideal MHD modes. With a wall reasonably far from the plasma surface we find that the external kink constrains q/sub 1/ to be above two, where q/sub 1/ is the plasma surface value of the safety factor, and the ballooning mode limits the value of ..beta... Then a relevant stable ..beta.. value for the Double Dee reactor design is over 7%. Such a Double Dee equilibrium is not in a separated second stability region and thus does not have a problem with accessibility. A relevant stable ..beta.. value for the TFCX-C reactor design is over 6%. Equivalent relevant stable ..beta.. values for the Big Dee (17%) and JET (7%) are included for calibration purposes. We compare these relevant stable ..beta.. values with the ..beta..'s determined by two recent scaling laws.</abstract><cop>Amsterdam</cop><pub>Elsevier</pub><doi>10.1016/0021-9991(86)90075-6</doi><tpages>11</tpages></addata></record> |
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| ispartof | J. Comput. Phys.; (United States), 1986-10, Vol.66 (2), p.458-468 |
| issn | 0021-9991 1090-2716 |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY 700107 - Fusion Energy- Plasma Research- Instabilities BALLOONING INSTABILITY EQUILIBRIUM Exact sciences and technology FLUID MECHANICS HYDRODYNAMICS INSTABILITY KINK INSTABILITY Magnetic confinement and equilibrium MAGNETOHYDRODYNAMICS MECHANICS Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges PLASMA INSTABILITY PLASMA MACROINSTABILITIES SCALING LAWS TFCX REACTORS THERMONUCLEAR REACTORS TOKAMAK TYPE REACTORS |
| title | Ideal MHD properties for proposed noncircular tokamaks |
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