... th dựng nh mt hng dn ủ chn ( x, y , t ) : mc nc (m) bc thi gian cho ủng thi tho ủc cỏc ủiu kin trờn in h( x, y , t ) : ủ sõu dũng chy (m) d ( x, y , t ) : cao ủ ủỏy (m) p ( x, y, t ), q ( x, ... y, t ) : lu lng ủn v theo phng x v y C(x,y): h s Chezy (m0.5/s) g: gia tc trng trng (m/s 2) f(V): h s sc cn ca giú V,Vx,Vy(x,y,t): tc ca giú theo phng x v y ( x, y ) : h s Coriolit pa (x, y,t) ỏp ... x C AR (2 3) ủú: A l din tớch mt ct ngang (m 2); t l thi gian (s); Q l lu lng nc (m3/s); x l bin khụng gian; g l gia tc trng trng (m/s 2); l mt ủ ca nc (kg/m 3); b l ủ rng ca lũng dn (m) v R l...