You should taken out the car-body from the enclosure by Boolean operation. unnecessary mesh creation ! (so u can see contacts created in BC. Not good practice in case you have enabled energy equation, cause there is no heat throughput in two volumes. Two types approaches can be done here: 1) Symmetry analysis using coupled. 2) Blunt enclosure, by removing inside volume of car. 3) Add inflation layers with thicknesses to capture gradients. 4) hexahedron mesh is proper for this case of study 5) the enclosure area offered for analysis should be properly calculated. Imp Note: 1) wall case or enclosure's shear stress should be ZERO for x,y,z direction. 2) car body should be in no slip condition with prescribed roughness 3) At the reference values in fluent, enter the "area" of the car body projected (You get it in Projected surface at reports), *in this case it will be in x-direction 4) Initialization of calculation should done from INLET or can be used hybrid if you getting higher Cd. 5) Time step for transient case should be calculated to determine/ capture the fluctuation of turbulence (for 1000 time steps at 28m/s is on around 7.77e-04s) and keep the convergence to 10e-6 decimal to get proper visualization. 6) Drag and lift is most essential in this case and should be below
the blue lines which are relatively far from the car are having a velocity of 0 m/s i.e. boundary layer condition ?? is that what the result is showing??
i hve seen some other videos where they subtract the object from fluid domain, in your case its not, i just need to know that whether it is needed to subtract or not? or still it will solve?
you can draw the model in fluent ,it's just multiple of lines and two half circles. and expand in z direction say 2.5 mtrs if you choose in mtrs (make sure about units) . tada....... you made it.other wise go to autocad ,or ansys for model making .
![MISSING: SLIM SHADY [Expanded Mourner’s Edition Trailer]](http://i.ytimg.com/vi/xh8qgHrOO1g/mqdefault.jpg)
You nailed it man ! and no vocals thing made the whole video classy :D
You should taken out the car-body from the enclosure by Boolean operation. unnecessary mesh creation ! (so u can see contacts created in BC. Not good practice in case you have enabled energy equation, cause there is no heat throughput in two volumes.
Two types approaches can be done here:
1) Symmetry analysis using coupled.
2) Blunt enclosure, by removing inside volume of car.
3) Add inflation layers with thicknesses to capture gradients.
4) hexahedron mesh is proper for this case of study
5) the enclosure area offered for analysis should be properly calculated.
Imp Note:
1) wall case or enclosure's shear stress should be ZERO for x,y,z direction.
2) car body should be in no slip condition with prescribed roughness
3) At the reference values in fluent, enter the "area" of the car body projected (You get it in Projected surface at reports), *in this case it will be in x-direction
4) Initialization of calculation should done from INLET or can be used hybrid if you getting higher Cd.
5) Time step for transient case should be calculated to determine/ capture the fluctuation of turbulence (for 1000 time steps at 28m/s is on around 7.77e-04s) and keep the convergence to 10e-6 decimal to get proper visualization.
6) Drag and lift is most essential in this case and should be below
This helped me a bunch, thank you!
also what model did you use
Thank you so very very much for this video!!!
How to find where is the maximum speed of the air passing. ( I need a precise Location)
great work, keep going
Brilliant! I am going to try this out later on the student version (if it'll let me)
the blue lines which are relatively far from the car are having a velocity of 0 m/s i.e. boundary layer condition ?? is that what the result is showing??
Please How can I get the coordinates of the vehicle body points to Astdeiha to the program and he finished the solution?
could anybody share the car's sw drawing?
I don't understand how come 350 m/s as an inlet velocity? Does it supposed to be 350 km/hr considering sports car?
how many elements and nodes do you have for the mesh
can you send part.ıgs
Yo please make a video on frame crash analysis,,, please broo
This is awesome. Can you share the .igs car model? I have doing a project in CFD.
grabcad.com/library/mclaren-mp412c
Thanks
if it is not needed to subtract then in what cases?
if it is not needed to subtract then why rest doing?
i hve seen some other videos where they subtract the object from fluid domain, in your case its not, i just need to know that whether it is needed to subtract or not? or still it will solve?
+jitendra nayak same doubt bro
what does "reverse flow at 141 faces at outlet 7" indicate during solution?
cuz of shit mesh
yup
i cant see my project in the enclosure when i double click the setup. why is that so can any one tell thnx..
+Adeel Anwar i am having the same issue, could u solve it? if so can u help me?
Can you share the .igs model?
you can draw the model in fluent ,it's just multiple of lines and two half circles. and expand in z direction say 2.5 mtrs if you choose in mtrs (make sure about units) . tada....... you made it.other wise go to autocad ,or ansys for model making .
ANSYS EĞİTİM VİDEOLARI İÇİN:ruclips.net/video/jvo9rcDgl3I/видео.html
maybe you should think of enlarging your domain...