In the presence of a shear stress, however, the shear angle will grow indefinitely if the shear stress ... heat exchanger tubes, etc.). Friction is usually important in these flows because there is a ...

Imagine a heavy book resting on a table. If you try to gently push the book across the table with the tip of your finger, it ...

Figure 10. Separated diffuser flow (included angle =20^o). Flow is from left to right. From Japan Society of Mechanical Engineers. If the flow is in the direction of increasing area (this is called a ...