Find the streamlines of the velocity field

In summary, the conversation is about finding the streamlines of two velocity fields: u=x(1+2t), v=y and u=xy, v=0. The speaker has completed the first step for both fields, setting up the equations and solving for y. However, they are unsure if their solution is correct for the first field and are seeking further guidance for the second field. They also mention the use of a homework template for posting homework problems.
  • #1
mathmari
Gold Member
MHB
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Hello!

I have to find the streamlines of the following velocity fields:

1. u=x(1+2t), v=y
2. u=xy, v=0

I have done the following:

1. ##\frac{dx}{u}=\frac{dy}{v} \Rightarrow \frac{dx}{x(1+2t)}=\frac{dy}{y} \Rightarrow \frac{\ln x}{1+2t}=\ln y+c \Rightarrow y=Ce^{\frac{\ln x}{1+2t}} \Rightarrow y=Cx^{\frac{1}{1+2t}}##

Is this correct??

2. ##\frac{dx}{u}=\frac{dy}{v} \Rightarrow \frac{dx}{xy}=\frac{dy}{0}##

How could we continue??
 
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  • #2
Sorry I can't help you but any homework problems must use the homework template! It will look neater, and is one of the rules of the forum.
 

FAQ: Find the streamlines of the velocity field

What is the purpose of finding streamlines of a velocity field?

The purpose of finding streamlines of a velocity field is to visualize the flow of a fluid or gas in a given space. This can help in understanding the direction and magnitude of the flow, as well as identifying any areas of turbulence or areas of stagnation.

How are streamlines of a velocity field calculated?

Streamlines are calculated by solving a set of differential equations known as the Navier-Stokes equations. These equations describe the conservation of momentum and can be solved using numerical methods to obtain a visual representation of the flow.

What information can be obtained from the streamlines of a velocity field?

The streamlines of a velocity field can provide information about the direction and magnitude of the flow at any point in the space. They can also help in identifying any areas of recirculation or stagnation, and can be used to calculate the velocity at any given point.

What are some real-world applications of finding streamlines of a velocity field?

Streamlines of a velocity field can be used in a variety of industries, such as aerospace, automotive, and environmental engineering. They can also be used in weather forecasting and oceanography to study the movement of air and water currents.

What are the limitations of using streamlines to visualize a velocity field?

One limitation is that streamlines only show the flow at a single instant in time and do not account for changes in the flow over time. Additionally, they may not accurately represent the actual flow in complex systems with turbulent or chaotic behavior. Furthermore, the accuracy of the results depends on the quality of the data and assumptions made in the calculations.

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