Dinamika Chastits V Vyazkoy Zhidkosti

Nalichie neskol'kikh faz i ikh vzaimodeystvie mezhdu soboy i vneshnimi polyami yavlyaetsya kharakternoy osobennost'yu lyuboy dispersnoy sistemy. Prichem eto vzaimodeystvie imeet slozhnyy kharakter i poroy privodit k paradoksal'nym rezul'tatam. Dobavka v nesushchuyu fazu chastits s luchshimi fizicheskimi kharakteristikami poroy privodit k ukhudsheniyu svoystv vsey sredy v tselom. Eto rezul'tat nalichiya poverkhnosti razdela mezhdu fazami cherez kotoruyu proiskhodit ikh vzaimodeystvie. Suspenzii (emul'sii) obladayut tem svoystvom, chto dispersnye chastitsy mogut peremeshchat'sya v nesushchey zhidkosti v rezul'tate deystviya kak vneshnikh, tak i vnutrennikh sil (sil vzaimodeystviya). V sisteme zhidkost'-chastitsy sushchestvuyut dva printsipial'no raznykh mekhanizma vzaimodeystviya chastits. Pervyy mekhanizm svyazan s silami, neposredstvenno deystvuyushchimi mezhdu chastitsy. Vtoroy mekhanizm svyazan s gidrodinamicheskim vzaimodeystviem chastits v zhidkosti. Vzaimodeystviem chastits vliyaet na techenie sredy v tselom i, sootvetstvenno, na vse protsessy, proiskhodyashchie v takoy sisteme. V poslednie gody vse bol'shiy interes predstavlyaet modelirovanie dinamiki sistemy zhidkost'-chastitsy. V rabote predstavleny rezul'taty po dinamike chastits v zhidkosti s uchetom ikh vzaimodeystviya.