Tutorial: Setting up an External Aerodynamics Simulation (STAR-CCM+)
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- Опубликовано: 3 июл 2024
- This video presents a tutorial on how to set up an external aerodynamics simulation in STAR-CCM+.
Here, a virtual wind tunnel is created around a simple geometry, which is a 6:1 prolate-spheroid, to analyze the aerodynamic behavior of this body. The prolate-spheroid has an angle of incidence equal to 20 degrees with respect to an inflow with a constant speed of 47.957 m/s.
You can access the geometry using the following link:
github.com/MojtabaMaali/Prola...
In this tutorial, the external aerodynamics simulation set up is performed in the following steps:
01:11 Definition of the Computational Domain and Region
11:17 Mesh Generation
13:26 Surface Preparation
13:40 Prism Layer Mesh Generation
21:09 Volume Mesh Generation
29:13 Checking the Mesh Quality
32:55 Definition of Physics, Boundary Conditions, Monitors, Solver Settings and Stopping Criteria
39:13 Post-Processing
This was a very useful video for people who are just getting started and need to learn how to use the programm. What I would have liked to see where more informations ony why we use the values that are shown and what they mean
Very good presentation, thank you!
Great as always! Thank you!
Thank you for the explanation!
Thanks for making this video!!
nice of nice sir,great to hear you
Very nice content, thanks for sharing.
Great tutorial!
Very well-done!!
You are legend
Thank you for this video ,I have problems in start ccm+ .how to draw the line pressure in ships.
Dear rachid tayeb,
For this purpose, you need to draw a plane section, where the parts is set to the ship hull. This will create a curve on the ship where you can evaluate the pressure values.
I hope this helps!
Respectfully,
Mojtaba Maali.
I have one question, why didn't you put any value in Reference pressure of Cp function field? Thank you!
Dear Jin,
The reference pressure is actually atmospheric pressure, which you define under physics, reference values.
Respectfully,
Mojtaba Maali.
I am conducting a research on optimization shape of under water vehicles. I have done one simulation following your video on simulation of submerged body. Now if I just update the 3d underwater vehicle's geometry will the rest of the settings remain as it is?
I believe so.
hi, could you provide an explanation on why a cell has to be developed for every 2 deg in the volume. Is there any thumb rule?
This is only a rough guess as a starting point. You need to perform a mesh convergence study to verify the minimum number of cells required to obtain an accurate solution.
Thank you a lot for your video, I love to study Ctar-Ccm+ with you. I want to make a table for a velocity profile or temperature (velocity and temperature gradients), where velocity (temperature) depends on the height. Do you have some tutorial videos about it? Waiting for your answer.
Dear Maria,
Thank you for writing!
About importing the boundary conditions using a table, I haven't made any videos yet. For this, you can import the table by right-clicking on Tables under tools and choosing New Table > Table from Files. In the dialog box, you need to choose the table file, which must be in CSV format. The table normally has four columns, the first being the variable (speed or temperature) and the other three columns being the coordinates X, Y and Z.
I hope this helps.
Respectively,
Mojtaba Maali.
@@CFD_Mojtaba Thank you for the answer!
@@CFD_Mojtaba Hi, dear Friend! I have a question about table for velocity inlet. Where do we set up this table - in boundary condition for inlet of wind tunnel or in initial conditions under the physics continuum?
Dear @@Maria-73, it is best to apply these tables to both initial and boundary conditions.
How do you mutli select the part and the wind tunnel, I am using a student version btw and I have trouble selecting both right now
You can do this by pressing down the control bottom.
@@CFD_Mojtaba thank you so much!
hi, thanks ,can you help me for reference pressure
Of course, Rachid.
Hello, I enjoyed the video.
Is there a paper about the expression of white (2006) in the video?
Dear Gyu Ahn,
Thank you for your interest in this video. I have seen this expression in a paper, but unfortunately I can't remember which paper it was. As soon as I find the paper, I will share it with you.
Respectfully,
Mojtaba Maali.
@@CFD_Mojtaba thank you!!:)
Hello. Can I get an answer to the previous question? I want to write a paper using that formula, so I need a basis for that formula.
@@gyuahn2265 The equations used in this video can be found in: WHITE, Frank M.; MAJDALANI, Joseph. Viscous fluid flow. New York: McGraw-Hill, 2006.
@@CFD_Mojtaba 😀😃thank!!!
Very good tutorial.. but unable to open cad file..
Dear Somnath,
Thank you for your interest in this video. To receive the x_t format of the geometry, send an email to this address: mojtaba@lts.coppe.ufrj.br
Respectfully,
Mojtaba Maali.