[choiyun]

Hello,

I have an unsteady, internal and two phase flow CFD simulation data to post process with Tecplot 360 2011.

I am having an issue with streamtraces function. When I create stream traces, it gives me short tangled lines that stretches and shrinks over time. What I would really like instead is a path a single particle followed over the entirety of my simulation.

There is only one path for a particle to follow over the simulation, hence the line should not be changing its shape over time. I would really appreciate your help. Please let me know if anything is not clear in my question. I will clarify them.

Please see the image I have attached.

As you can see, there are three streamtraces I have created. They do stretch and shrink over time when I play the animation. Why would they? I thought streamtraces supposed show a single path the particle has followed overtime? Shouldn't there be only one line for a particle where each point of the line represents the location the particle at a certain time (together they would form a line)?

Another confusion, may be the biggest one, is what is the difference between streamtraces and Particle paths and streaklines under analyze? When I read tutorials and users meanual, streamstraces appears to be what I want, however, at this point I would like to understand the relationship between streamtraces and particle paths. Is there any good resource to dig in other than user's manual?

Thank you!