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Fluid Mechanics | 2nd Edition | ISBN: 9780071284219 | Authors: Yunus A. Cengel, John M. Cimbala
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Consider the visualization of ground vortex flow in Fig.

Chapter 4, Problem 29P

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QUESTION:

Problem 29P

Consider the visualization of ground vortex flow in Fig. P11-29C. Are we seeing streamlines, streaklines, pathlines, or timelines? Explain.

FIGURE P11-29C

Visualization of ground vortex flow. A high-speed round air jet impinges on the ground in the presence of a free-stream flow of air from left to right. (The ground is at the bottom of the picture.) The portion of the jet that travels upstream forms a recirculating flow known as a ground vortex. The visualization is produced by a smoke wire mounted vertically to the left of the field of view.

Photo by John M. Cimbala.

Questions & Answers

QUESTION:

Problem 29P

Consider the visualization of ground vortex flow in Fig. P11-29C. Are we seeing streamlines, streaklines, pathlines, or timelines? Explain.

FIGURE P11-29C

Visualization of ground vortex flow. A high-speed round air jet impinges on the ground in the presence of a free-stream flow of air from left to right. (The ground is at the bottom of the picture.) The portion of the jet that travels upstream forms a recirculating flow known as a ground vortex. The visualization is produced by a smoke wire mounted vertically to the left of the field of view.

Photo by John M. Cimbala.

ANSWER:

Problem 29P

Solution 29P

Step 1 :

In this question, we need to find the type of the flow line and explain the reason for the choice

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