foundations of fluid mechanics

Viscosity - When two solid surfaces slide over each other, a frictional force acts between them that opposes the relative motion of the bodies. Similarly, when a layer of a liquid slips on another layer the two exert a tangential force on another. This opposes their motion. The property of a liquid..

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The first four pairs of spiracles are involved in inspiration or drawing in of air (that is oxygen-rich). This air passes through the trachea and the air sacs to reach the tracheoles. Mechanism of Respiration in Insects The ends of the tracheoles are filled with fluid. This..

The heart is enclosed in a tough sac called pericardium . It is made up of an inner pericardium and an outer fibrous pericardium. The 2 layers have between them a very narrow space, the pericardial cavity filled with a watery coelmic fluid called pericardial fluid . The peric..

Lymph - At the capillary end of the arteries, the walls are only one-cell thick. The pressure in the arterial capillaries is also quite high. These leads the plasma to leak into the interstitial space. The interstitial space is the space between the cells of the tissue. The fluid is plasm..