i» r v w m or cAurorwu jM rtto e # fceJUttor. i*b©r»V»ry L tv c n n r* , CfcUforn&t Contmct Ho. W-7*0^-ee«*WJ TOBMencAi Aiuimi or tui mmxrmiac now I» EXPLODING V1HE FHENOKEKA Curl A. JtoiMM •torch, 19>9 P rinted fo r the U. 8. A toad, c Energy CcxwlMlon m at*. 5$ti«r o f th e Hydrodya airt c f l w In lUpioding Wire u n m * * Cnrl A. Douse lawrear# A U U U m laboratory U n ittr tU y o f C alifo rn ia U w t r a r e , C a lifo rn ia * rc h , ifW ; • : Manner I T h e o re tic al c a lc u la tio n s

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... o f exploding w ire p jiim m a have toon t a r r ie d o u t w ith on 1M 70A lag ran g ln n code. The model fo r th is a n aly sis u t v » In stan tan eo u s energy d e p o sitio n In the w ire. C alculation* ver* made w ith 41 f fe re n t condition*. Among those presented nr» (1) d iffe re n t e f f e c tiv e e q u atio n s o f s ta te fo r the copper wire and (2) d if f e r e n t • p o tio n * o f e ta te fo r to# surround In* * l r . Tho equation* o f s t a t e fo r the * ir nr* (n) • : c o n sta n t gss-»Uw in* n nl (b) the v a ria b le gas--law gas c a lc u la te d by F. D. Gilmore. The shocK vmve propnfntlon In each 1* shown to re q u ire s ig n if ic a n tly d if f e r e n t e n e rg ie s . The re s u lt* e re coapared to c n lc u ln tlo n i nn<le without copper w ire (energy assumed d e p o sited in * volume o f n i r equal to t h a t o f the w ire) end w ith nn * n e ly tlc e l r l U r i t y so lu tio n fo r c y lln d rlc n l •hock waves. The propagation of the shock wavs in t l r c a lc u la te d w ith th e 0 lin o re equation o f e ta t e fo r a i r shows e a c e lle n t agreement w ith th a t observed by F. D. Dennett. The second shock wave In th e copper shows q u a lita tiv e agreem ent with th a t observed by Dennett, b u t in d ic a te s th a t la th e range o f BfP, copper does n o t s e t lik e s constant gaasm-law g as. A# fo r s im i l a r i t y , i t la rtiown th a t hydrodyna⁣ flow d u rin g th e expolslon o f w ires i s n o t s i * l U r . a---