What is fluid mechanic? In the oil and gas industry, we are dealing with fluid mechanic problems every day. What is fluid? What is the nature and character of the fluid? To solve this problem we need to understand fluid mechanic basic. Mechanics is physics that deals with stationary objects and moves in the influence of forces. 1) Branches of mechanics that deal with stationary objects are called statics, and 2) The branch of mechanics that deals with moving objects are called dynamics Fluid mechanics is the science that deals with the nature of the fluid in a state of silence (fluid statics) or fluid in a moving state (fluid dynamics), and the interaction of the fluid with solids or other fluids at the surface of its boundary. Fluid mechanics is often also called fluid dynamics by looking at silent fluid as a special case of fluid moving at zero[…]

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