STAR-CCM+ 2d wing build, mesh, run, validation, and automation
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- Опубликовано: 8 фев 2021
- This video shows:
• Full setup, mesh, and run on a 2d wing
• Mesh refinements
• How to swap out CAD
• Validation of Cp/Chord
• How to automate an angle on attack sims and data collection
The validation compares the results with the experimental pressure data of Gregory and O’Reilly “Low-Speed Aerodynamic Characteristics of NACA
0012 Aerofoil Section, including the Effects of Upper-Surface Roughness Simulating Hoar Frost”.
The sim file from this can be found here:
community.sw.siemens.com/s/qu...
00:00 Discussion of the methods importing it on to Star CCM
01:08 Explanation of Excel spreadsheet
02:00 Importing of the coordinates of excel into star CCM
02:30 General controls you can use in star CCM
03:15 Creation of the domain and looking at the size
04:30 Renaming the parts
04:55 Control and naming of which side is the inlet and the outlet
05:55 Rotation of the wing
06:50 Creation of the new geometry part in preparation for meshing
07:25 Subtraction of the wing from the domain
08:25 Identification of the geometry where z = 0
08:43 Assigning the settings of the meshing
09:44 Allocation of the object to be meshed
10:15 Generating the physics of this Aerofoil
11:14 Reference pressure of the surrounding environment
11:25 setting the wind velocity
11:57 Defining what parts are the outlet and what parts are the inlet
13:07 wind flow directional control
13:57 The beginning of making changes to the mesh
14:20 How to show mesh on screen
14:35 Base size meshing explained
15:25 Target surface size referencing base size
15:33 explanation of the minimum surface size
16:03 Creating a concentration in the centre of the mesh rather than the outer part
16:50 Meshing button & result & analysis
17:50 Creating the thinning of the mesh
18:25 Stretching out the layers of the mesh
19:00 Leading edge refinement
19:30 Creating a simple object to let Star CCM know where to start the refinement
19:50 Changing the view so you can get the top down view
20:36 Mesh constrained to the shape that you have created onto the aerofoil
20:48 Refining the wake of the body and refining the mesh around the body
22:25 meshing the new refinement
22:51 Going through files to see what you need to go through
22:57 Stopping criteria -> Maximum steps
23:18 Reports file -> Coefficient of lift report Continuation in 24:46
24:18 Reports file -> metrics-> Frontal area Y
25:45 Reports file -> Coefficient of drag Continuation in 26:20
26:03 Reports file -> metrics -> Frontal area X
27:15 Create monitor and plot
27:49 Scenes folder
28:05 Scalar Scene folder
28:43 Scenes -> Creating a new vector scene
29:35 Running the simulation and the graphs
30:13 Creating the XY plot
31:00 pressure coefficient does not have the data that is relevant to his case
31:10 Changing the pressure coefficient (Tools-> Field Function -> Pressure coefficient)
31:48 Importing of the experimental data
32:20 Method of importing (Tables -> New table ->File table -> Whatever file that you want to import)
32:35 Inserting the file that has been imported to the graph to compare
33:17 Showing the change of angle of attack (AoA) through simulation
33:24 Solution -> Clear Solution to forget history to make the graphs start from scratch
34:55 Bringing in new geometry or importing a new wing
35:15 Replacing the geometry with a new geometry
35:44 Resetting the solution
35:56 Automating the angle of attack sweep
36:10 How to automate the process
36:27 Loading in a pre-built one
36:50 Design study sweep mode
37:08 Putting in different discrete value
37:18 More information about the prebuilt simulation on to the software
37:55 the graph of airfoil angle and lift coefficient which shows the changes in the airfoil
Your a life-saver, thank you so much for showing me how to use STAR-CCM+
Very helpful tutorial indeed one of the best i have watched on YT
Very helpful tutorial. I used your lesson to help me complete a project for a Computational fluid dynamics class at my university. Thanks!
Very helpful tutorial. Thank you so much!
Really helpful tutorial.Thanks
good video and especially nice for the plot of AOA
awesome video!
very nicely done tutorial
very helpful tutorial.
Very helpful. Thank you.
Super stuff!
This really helps me a lot. Thank you! But I have one question. How can I get average Cl in the design manager since Cl fluctuates at high AoA?
I put mesh on my cube, but now its refusing to run my simulation because automatic mesh insists on 3d meshing and im simulating 2d cavity flow.
I am trying to find a correct mesh size for my simulation and was hoping to do that by calculating force coefficients for different mesh(base size). how can i get the force coefficient from star ccm ?
How did you automatize the remeshing required at every angle changing?
I'm trying to use overset mesh, which dont need to remesh every time, but have no idea how to create an automation AoA sweep
This really is a great video! Could you maybe share the table file of the Cp data?
Can you maybe make a video about more explanation about the Design Manager Project?
If I were to make a moment coefficient report which Frontal area would I use
Thanks to your tutorial.
Could you please show me how to export the mesh from StarCCM?
@@siemensdiswstudentcompetit5102 Thanks for your reply
the reference area should not change with aoa and cd should use the same frontal area as cl
Hi, how do you do this?
28:10