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lateral momenium eąuaiions:

du	du	du	du	~Jv =	1 dp	A d^2u	+ Ah£u
	+ u —	+ V —	+ w-			ł- Ą—r
dt	dx	ay	dz		,o dx	^ dz^2
dv	dv	dv	dv	■ ju =	1 dp ^	A d^2v	+ ĄAv
	+ u —	+ V-	+ w— -+			' Ay -T-
dt	dx	ty	dz		,<?dy	dz^2

hydrostaiic balance :

incompressibility condiiion: du    dv _ _ dw

dx    dy dz