[其它]90 MODELING OF THE INVERSE Z-PINCH DYNAMICS *

MODELING OF THE INVERSE Z-PINCH DYNAMICS * '],J$ge  
V. Makhina, A. Esaulov, B.S. Bauer, R.E. Siemon, R. Presura, 1GzAG;UUo6  
V.I. Sotnikov, and I. Paraschiv ,v"YqD+GC5  
University of Nevada, Reno, Mail Stop 220 x.-+[l[1 !  
Reno, Nevada 89557, U.S.A. -GxaV #{  
I.R. Lindemuth, R.C. Kirkpatrick, and P.T. Sheehey Gz.|]:1  
Los Alamos National Laboratory, Mail Stop B259 A~-b!Grf  
Los Alamos, New Mexico 87545, U.S.A. JtER_(.  
D.D. Ryutov eM8}
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Lawrence Livermore National Laboratory, Mail Stop L-630 |1j["u1  
Livermore, California 94550 , U.S.A. p5G?N(l  
Abstract om1eQp0N  
The two-dimensional MHD numerical simulation l\i)$=d&g  
MHRDR has been applied to develop and investigate a O%bEB g  
new possible fusion scheme, and design experiments to FSND>\>  
test it. The confinement of magnetized high-beta plasma wmTb97o
 
directly by material walls holds considerable promise for d3xmtG {i  
fusion. An interesting prospective Magnetized Target ]\
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Fusion (MTF) target plasma is the cylindrical inverse !KUi\yQ1  
pinch, which is, in theory, an MHD-stable, self-organized ~@}Bi@*  
plasma. An inverse pinch consists of coaxial, metal, )ut&@]  
current-carrying cylinders with plasma between them. nr<4M0tIp  
Important insight into this plasma has been obtained using !r<pmr3f@7  
the MHRDR simulation. First, simulations observe that e%b6(%  
interchange m=0 modes rearrange the plasma into a Ofs<EQ
 
pressure profile that is stable to m=0 (the Kadomtsevstable YPxM<Gfa8  
profile). Such plasma self-organization is very E>K!Vrh-L  
encouraging for the development of a robust practical 1
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device, since the pressure profile does not have to be <7~'; K  
created in a very particular manner to satisfy the A}l3cP; `#  
Kadomtsev criterion. Second, the plasma beta can be _bNzX
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adjusted by using an initial bias current on the central
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conductor to magnetize the gas before it is ionized. In >7 ="8  
this way, the plasma beta can be kept below 40%, so that, CB^U6ZS  
according to theory, the troublesome m=1 mode is also 5 sX+~Q  
stabilized. (The r-z MHRDR code does not analyze the vam;4vyu  
three-dimensional kink motion.) Although the convection B6={&7U2  
associated with self-organization enhances thermal !z>6Uf!{  
transport, the kinetic energy of turbulent motion is small 4%4 }5UYN  
compared to the thermal energy, and the energy transport m;,N)<~  
is globally Bohm-like, which is acceptable for MTF. The mHRiugb!  
MHRDR modeling is guiding the design of an experiment hv?9*tLh0  
on the 2-TW Zebra z-pinch at UNR to test the inversepinch 'tH_p  
concept. For the parameters of the designed :=Nz}mUV  
experiment, MHRDR simulations predict the 2-MV, V-BiF>+  
1-MA Marx generator will produce a deuterium plasma j:v@p
zTD  
with B ~ 4 T, n ~ 1022 m-3, T ~ 300 eV, and a lifetime of > ;*b|Ik  
10-50 microseconds. Understanding of the energy K|epPGRr  
transport in this simple wall-confined plasma will J\b^)  
yU*8|FQbP  
14th IEEE International Power Conference全文数据，part 01 - part 16 +{oG|r3L  
http://www.rayfile.com/files/089ddb14-a63a-11dd-975a-0014221b798a/ .6Pw|xu`Pw  
http://www.rayfile.com/files/4a3ec10a-a63a-11dd-9338-0014221b798a/ 5?x>9Ca  
http://www.rayfile.com/files/7a61ac11-a63a-11dd-8de6-0014221b798a/ %%[LKSTb  
http://www.rayfile.com/files/abc55d59-a63a-11dd-9c7d-0014221b798a/ F1yqxWHeo  
http://www.rayfile.com/files/dc377bcf-a63a-11dd-acc9-0014221b798a/ iUN Ib
 
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http://www.rayfile.com/files/3e501c26-a63b-11dd-8167-0014221b798a/ %$.3V#?  
http://www.rayfile.com/files/7056586e-a63b-11dd-9dbe-0014221b798a/ cz8T  
http://www.rayfile.com/files/a50ff68c-a63b-11dd-a055-0014221b798a/ lgk.CC  
http://www.rayfile.com/files/dabae685-a63b-11dd-83bf-0014221b798a/ -Ps!LI{@  
http://www.rayfile.com/files/0ee56f80-a63c-11dd-9d0b-0014221b798a/ .:F%_dS D  
http://www.rayfile.com/files/3e819f21-a63c-11dd-9b7f-0014221b798a/ 3ca (i/c  
[url=http://www.rayfile.com/files/a46912f0-a63c-11dd-994a-0019d11a795f/]http://www .. {ttysQ-  
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