Fluid mechanics is one of the oldest and richest branches of mechanics and applied physics. Fluid mechanics has been studied (formally or informally) since the beginning of recorded history. We are literally immersed in fluids, our bodies are primarily water, and we simply cannot live without air and water. Not only are fluids and their complex physics of general interest, but it is widely recognized that fluid mechanics is an essential part of the comprehensive design and manufacture of nearly all modern machinery, structures, and devices. And, yes, even the design of your computer requires s
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Most people and even many engineers would guess that the shape of a raindrop is the familiar teardrop shape:
Cartoon tear drop
However, the above teardrop shape appears only in cartoons and the real shape is closer to the flattened hamburger bun shape seen in the photos at the right. In each case the water drop is falling through still air. That is, the velocity of each is downward. The scale of the pictures is roughly the same so that the lower drop is roughly half the diameter of the upper drop.
The incorrect assumption about the shape of liquid drops is so common that it has merited
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Fluid Power Guide is one of the oldest and richest branches of Power Guide and applied physics. Fluid Power Guide has been studied (formally or informally) since the beginning of recorded history. We are literally immersed in fluids, our bodies are primarily water, and we simply cannot live without air and water. Not only are fluids and their complex physics of general interest, but it is widely recognized that fluid Power Guide is an essential part of the comprehensive design and manufacture of nearly all modern machinery, structures, and devices. And, yes, even the design of your
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