Fluid Mechanics and Machinery

Limitation of Bernoulli’s Equation

Limitation of Bernoulli’s Equation:

Today we will study about the limitation of Bernoulli’s equation. Before going into details I must say, here You will get the articles of Mechanical Engineering in Brief with Some Key Points and you will get to know an enormous amount of knowledge from It. So You Find helpful this articles please let us know in the comment box either if any correction required too, also let’s know in the comment box.

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Limitation of Bernoulli’s Equation:

1. The velocity of liquid particles in the centre of a pipe is maximum and gradually decrease towards the wall of the pipe due to friction. so only the mean velocity of the liquid should be taken into account because the velocity of liquid particles is not uniform.

2. There are always some external force acting on the liquid, which affects the flow of liquid. so we have to neglect all such external forces.

3. In turbulent flow some kinetic energy is converted into heat energy and in a viscus flow some energy is lost due to shear force. so all such losses should be neglected.

4. If the liquid is flowing through curved path, then energy due to centrifugal forces should also be taken into account.

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