Figure 4.36 shows irrotational flow past a circular cylinder. Assume that the approach velocity at A is constant (does not vary with time).

a. Is the flow past the cylinder steady or unsteady?

b. Is this a case of one-dimensional, two-dimensional, or three-dimensional flow?

c. Are there any regions of the flow where local acceleration is present? If so, show where they are and show vectors representing the local acceleration in the regions where it occurs.

d. Are there any regions of flow where convective acceleration is present? If so, show vectors representing the convective acceleration in the regions where it occurs.

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Note: Positive C, is plotted inward from cylinder surface; FIGURE 4.36 C,= 3.0 - Negative C, Irrotational flow past a cylinder: negative C, is plotted (a) streamline pattern, (b) pressure outward. p- Po distribution. pV2 A B E C, = +1 (a) (b)