A PATRA ONFERINŢĂ A HIDROENERGETIIENILOR DIN ROMÂNIA, Do Pael MODELLING OF SEDIMENTATION PROESS IN LONGITUDINAL HORIZONTAL TANK MODELAREA PROESELOR DE SEPARARE A FAZELOR ÎN DEANTOARE LONGITUDINALE Da ROBESU, Ada INU Abac: The lodal hooal ecala el ak ed ae eame ad aeae eame la. The ececy o e oce deed by may hycal aamee. The ae ee he e mehod o oba he coceao ole ecala el ak. Th e oba he cea o omm deed ad oeao o hee ba. Th e mehod ca be ed o coceao emao he leh o edmeao ba, o omm me o oeao o he lde m ad o ael bde de.. INTRODUTION The lodal hooal ak eeally ed ae dy ( dk ae ad ae ae eame la), a eaao eochemcal dy, a chambe. Lodal el ak hae a ecala hae boh la hooal ad ecal h h deh, B dh ad L leh. The cal chaacec o mlhae ld me he ac, ac codo o ey loly moo, de o dee ecc eh, he hae ll eaae by ay o ecal deco; hae heae ha ae ll eaae deced deco oce called edmeao. The edmeao oce deed o: a) he ae o acle; b) he e o me (collodal acle, dcee alae acle); c) he me coceao; Doco e, PhD de
d) emeae o me; e) he hydodyamc codo o he me moo; ) he dmeo o edmeao ak. Whe he me ae ad eded old lo ey loly el ak he hae h ecc eh eae ha he lqd ed o moe o he ak boom. I ee he dmeo o el ak ae eablhed by cemac codo by Q he ae ao elocy = ad emal elocy o acle Bh 4 = 3 d R, hee q he lo ae o me. The deeo me dee by ececy, deh o el ak ad ace load ae. All o hee aamee ae eablhed by a lae eeece de ad oeao o el ak. The e mehod o dy el oce, eecally o omm oeao, by o o e o oe como, baed by coceao ole lodal hooal el ak. The moo o eded alaed acle eeaed by he ld ce. The edmeao o aeboe eo deed o he hydodyamc codo o lo, me ad ace. To decbe h oce code he moo eqao, he dyamc o mlhae ld hee d d ( ) T m ( d ) baycec ae o lo o hae, = o old ad = ld cae, coceao o deed old hae, hydoac ee oly o ld hae, T coy eo, m qe ma oce ay oce he la em eee de ee. The em eee hydodamcal ad mechacal eaco beee he o coe o me. Le code he el ak h lama, l lo, om ad emae moo o me by old acle de ed ae. The eqao () become ()
( ) ( ) ( ) ν () hch aea he ay acceleao ad a ele he de ee em. Fe ha he elocy o old acle, ad ao elocy o ld The eqao, chaea coodoae bdmeoal yem, o hae deco ae: a) o ae ( ) ( ) [ ] ( ) ( ) ( ) ν (3) b) o old acle ( ) ( ) ( ) (4) By mmay o hee eqao e oba [ ] [ ] η = (5) Th eqao e he coceao ole o me he moo by el ak.. ANALITIAL SOLUTION FOR ONENTRATION SOLID PARTILES EQUATION Le code he la eqao by old acle moo (6) F.. The elocy o hae
The coceao ade o O a ca be eled comaao h ecal ade, ad e eled he ee ad eaco em e oba he deeal eqao o d d. h olo l ( ) o e ( ) = (7) = (b) = h / be (a) F..3. The heoecal coceao ole eqao (7) The coceao ce ae e e hch he emal elocy ae aamee. Whe he acle ae lae ad heae he ce a coec, ad o malle ad ealy he ce b coeode. Q D H =,5 m A L = 5 m B F. 4. Sel ak ecal eco
3. NUMERIAL SOLUTION FOR ONENTRATION`S EQUATION Fo coceao eqao [ ] η (8) Ae obaed he mecal olo by MATLAB PDE TOOLBOX. alay o he ecala doma e e 4 hch he lo ae Q =,6 m 3 /, olme o el ak V = 5 m 3. The coceao o me le oe m/l, old acle hae = 8 k/m 3. The eloce o old acle ae =,9 ad he elae eloce beee hae = =,9. Pe edmeae -a codea că e o dee aclele c o eă ma mae decâ îcăcaea hdalcă de aaţă b oma =,95. Fe 5 ee he coceao ole deemao mecal olo o eao. Dba coceae elo - ba de edmeae 6:36:9 /4/ FlePDE.b Y. a a a a a a a a a a a a a -.5 -. -.5 -. k m o q h j e d b c oom(,-h,l,h) ma. :. :.9 :.8 q :.7 :.6 o :.5 :.4 m :.3 l :. k :. j :. :.9 h :.8 :.7 :.6 e :.5 d :.4 c :.3 b :. a :. m. -.5 l... 3. 4. 5. a8: Gd# Node=357 ell=54 RMS E=.e-4 Ieal= 8.9599 X F. 5 ho he coceao ole o h ce o el ak
4. ONLUSIONS The e mehod o coceao ole deemao able o el ak hae ad omm deed o edmeao ba. Th mehod allo aomac oeao cool o el ak 5. BIBLIOGRAPHY [.] D.Robec, Modelaea ş mlaea oceelo de aae ş eae a aelo, Eda Tehcă, Bceş, 4 [.] A.c, Iomaaea ş modelaea hdodamc alaţlo de eae, Teă de docoa, UPB, 5