equation icon  S e b' e b'' e b' \~/ bA a(x) = - 2r2-Uab'u @br - 2r---2Uab''u @bradv + 2rUab';bu e ( ' ' adv ') e '' + --- Uab';g'ub ug + Uab'ab @bu + -----Uab'';bub 2r 2radv --e--( b'' g'' b'') 1- b' + 2radv Uab'';g''u u + Uab''a @bv + 2eVab'u @bu 1 1 integral v - -eVab''ub''@bv - -e \~/ bVam(x, z)um dt, (464) 2 2 u