Project 1 : CFD Meshing for Tesla Cyber Truck
AIM: For the given model, check and solve all geometrical errors and Assign appropriate PIDs. Perform meshing with the suitable Target length and element Quality criteria.
PROCEDURE:
TOPO CLEANUP:
Download the model from the challenge page,and open in the ansa software.
topo is carried out for the whole tesla cyber truck by the box selection . where the topo option is present in the faces-topo.
by this action all the single single cons is turned into the double cons.
the tesla cyber truck is symmetric so the deletion of half side of the model(tesla cyber truck.).
initially it is properly done.so the cut is carried out at the centre axis or symmetry axis (the exact center axis which the tesla cyber truck into two equal halfs.)
the open surface which is presented in the back side of the tesla cyber truck and it shows a single cons.that surface is closed by using the fill hole option.
now the symmerty axis properly cutted and the exact half portion of the tesla cyber truck is deleted.by using the delete option which is present top deck in the ansa software.
that half portion which is shown above is deleted properly and the rest of the tesla cyber truck is under goes the further topo clean up.
the single cons are present near to window that sinle cons are reomeved by the help of the new surface generation .that new surface is generatede by faces-new-coons-cons selected.
the gap is present in the back tyre and the signle cons is showed.that is reomoved by create faces by fill hole optons .
at the back tyre the small surface is missing and that surfaced is covered by using the coons option.
the face generation is not proper.so the project the hot point is carried out and and then the small small faces are generated.
as the same way all the single cons are removed.after clearing all the topo cleanup is the meshing process of the tesla cyber truck is started.
MESHING:
The meshing of the tesla cyber truck is stareted by assigning the pid for the model.
the pid is created and that is applied for their respective parts .
after creating the pid and that is assigned for the boby and tyre .
now the quality criteria is checked by enable the open foam which is present besides of the volumetric mesh deck.
and the qualtiy criteria is saved with some the necessary information that accutally needed for the model.
the target length is given as 2mm and minimum length as 1mm and maximum length as 3mm.
now at mesh deck the length select and perimeter is select and set as 2mm and the macors select as 2mm.
by applying the mesh generations the spot visible is placed for both the pid and the mesh becomes visible.
the meshed tesla truck body is,
body of the meshed tesla truck model is shown above.and also the meshed wheel part of the tesla cyber truck is shown below.
these are the meshed parts of the tesla truck model.
hence the total meshed model is,
by this itself the meshing part of the tesla cyber truck is completed with all the quality criteria of the meshing properly.
SYMMETRY MAKING:
The symmetry making process is started by the help of the transform-copy-symmetry -mirror 3 point plane and by picking 3 points .
it takes some time and the meshed full tesla cyber truck is generated.
WIND TUNNEL CREATION:
Put the model in the front view,and by using the points in the topo deck,and the relative is used to set the reference point at the bottom of thr model by giving the mesaurement in the distance box.
the distance between the front and rear side of the model is consider as 'X'=5900.
the refence point is created with a distance of 750 mm from thr bottom surface.
this is the reference point of the wind tunnel creation.now the front side of the windtunnel point is created by using the lenth FRONT LENGTH=4*5900 and addition of the distance between the refernence point to front line point.
the total length from the reference point is 35400.
the rear surface is also the same but the length is 6*5900 and addition of distance between the reference and back point and hence the total length between the refernce and the point is 38650.
the top of wind tunnel coordinates are generated by selecting the top point and 3*5900 and that distance is 20069.
the coordinates are generated by usiong the points -relative-dist.
then model is kept in the top view and select the front and rear point and replicate that two points in the both right and left of the point which is presently present.
now by using the curves option the points are selected then the curves are created.as a box in section.
now by using the new-coons-options the surface is created.that surface needs to be apid region ,so new pid region is created.
then the bottom surface wind tunnel is created .by using the offset option the bottom surface is replicate the top surface with the help of the distance,so it results generetaion of the top surface is crearted.
now all the model and windtunnel surfaces are hidden and the reference points are deleted and the curves are also deleted by using the delete in curves.
now the all surfaces are came back and by using the new faces-coons option the rest side wind tunnels are created.
assign the seperate pid for each and every side of the wind tunnel.
now the quality criteria is changed into the 500mm target egth for top surface.and 300mm for bottom surface.
by using spacing and give the proper direction the surface meshing of the wind tunnel is properly done.
CONCLUSION AND RESULTS:
the telsa cyber truck model is fully topocleaned and check all the geometric checks is carried out.then the quality criteriia is done for meshing the tesla cyber truck and the model is meshed propoerly.then the wind tunnel is created and that too properly done.
my project ansa file:https://drive.google.com/file/d/1LY-V_9ekIuXdh2p0NsUIgO68B4vnnVWn/view?usp=sharing