Flow Distribution in Fuel Tank

No. You do not provide enough information. "Distribution of flow" will be equal. You fail to account for the acceleration forces acting on the fuel, etc. etc.

Pressure at the inlet will be atmospheric.

With only one outlet, there will be no "distribution". It all goes out the same hole.

Your question is without logic.

Flow rates are so low that almost any small "limber holes" will do. The baffles prevent sloshing/splashing/aeration of the fuel in the tank. (In the case of ships, they prevent large movements of liquid that could destabilize the vessel.)

there is a tank with one inlet pipe at the top and it falls in one particular compartment of the tank and from there it flows to other compartments through the holes at the bottom of the separation plates with some rate depends on the restriction provided by the hole size.

What's the application? We need more information.

I assume this is common design 'baffled tank' in a liquid transport application.

Normally the 'small holes' are more than adequate for the usual delivery pump filling rates. But if you provide the area and number of each hole and the height of the tank or baffles (pressure head), the fuel viscosity, a maximum flow could be found.

However most baffled tanks have larger gaps at the top of baffles, or baffles do not reach the roof, thus; if the filling flow is too fast for the holes, it will overflow into the next compartment.

The holes at the foot of baffles are about delivery volume rates. The gaps at the top are about maximum filling rates.

Sir,from my understanding I think only the area of flow will not be sufficient to decide the flow rate,so i couldn't get this "The holes at the foot of baffles are about delivery volume rates. The gaps at the top are about maximum filling rates" sorry for my misunderstanding.Please explain

Imagine a baffle - or wall - fully dividing the tank.

If you fill the first part, the second part gets nothing.

So if you put holes at the bottom of the wall, liquid will get through, [until the air above is compressed and stops flow].

So ok, put holes at the top to let the air out - then the second part will fill at the pressure difference the bottom holes allow. Slow maybe, yes?

So say, the first compartment is full and the second still filling, air escaping through top holes.

Next the first part is full and second part half full - the holes at the top will start to overflow into the second, [but this may stop air escaping].

So the 'balance' is to have holes for air escape and overflow at the top

Therefore;

Bottom holes only need generous enough for flows you want when emptying the tank.

Remember, when emptying, the head is lowering, so the bottom holes need to suit that 'low head and volume' toward end of delivery.

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So; top holes are about filling rate, overflow, and air out, when the fill rate is too fast for the bottom holes to handle.

E.g. when Over Flow capacity is needed towards the 'end of fill', as there is not much head difference across the sections to push enough fill volume through bottom holes.

Is this clear? If not, do say so.

Raj, to be able to give you a good answer you have to supply more detailed information as size of the tank, the quantity of liquid that needs to be replaced, the number of baffles or compartments, the use of the tank, whether or not it is in motion, etc.

Information so vague as yours cannot be answered correctly, matter of fact the answers could be wrong and you would not know it

Sorry sir,i'l try to get back to you!!!