Discussion Groups

Simulation Moldflow Insight

Reply
Active Contributor
lahkar
Posts: 48
Registered: ‎10-24-2010

Can any one suggest me how to design baffle in Moldflow?

1048 Views, 6 Replies
04-08-2011 04:46 AM

Can any one suggest me how to design baffle in Moldflow? I have designed it but intersecting problem is there. Is there any design criteria. I am attaching my cooling channel and its intersecting problem image here. Plz do help me to design it.

Please use plain text.
Mentor
madhukeshwart
Posts: 273
Registered: ‎03-18-2009

Re: Can any one suggest me how to design baffle in Moldflow?

04-10-2011 09:44 PM in reply to: lahkar

1. just keep 0.5 to 1 gap of inlet and outlet of baffle.

and create inverted V shape curves then mesh it.

It will solve the problem of intersection.

 

2. if create manually. it will solve.

 

3. take a help of local tech support. they will help you within 10 minute time

 

Madhukeshwar Talwar
FIAT-CHRYSLER ATC, Chennai
mail: madhukeshwart@gmail.com
09600060862
======================================
Please use . Accept as Solution and Give Kudos as appropriate to further enhance these forums. Thank you! .....
Please use plain text.
Employee
WarpGuru
Posts: 13
Registered: ‎08-23-2009

Re: Can any one suggest me how to design baffle in Moldflow?

05-01-2011 07:25 PM in reply to: madhukeshwart

Hi

 

I agreed with madhukeshwart. Baffes are strange because they need a way in and a way out. It usually comes for a vertical baffle to two set of beams almost superposed. As mentioned, a curve in a V shape, meshed with beam elements (superposied if the distance at the top of the V is very small). Alternatively, you can use bubbler if you want to create only one vertical curve and mesh it with only one set of beam elements.

 

Cheers,

 

WARNING: The above comments are based on personal opinion and should be considered as such with no garantee attached.

Please use plain text.
Valued Contributor
PascalGosset
Posts: 71
Registered: ‎06-18-2010

Re: Can any one suggest me how to design baffle in Moldflow?

05-02-2011 12:48 AM in reply to: lahkar

Look at the Moldflow Help topic :

Modeling / Cooling system / Cooling components / Baffles

 

Don't worry about the overlapping. Of cause those beams are overlapped.

"Maybe Moldflow does not work properly, but the real world neither."
Please use plain text.
Active Contributor
lahkar
Posts: 48
Registered: ‎10-24-2010

Re: Can any one suggest me how to design baffle in Moldflow?

05-02-2011 09:24 PM in reply to: lahkar

Thanks @ all for your kind and valuable reply.

 

I run the analysis allowing all overlapping in beam elements. But, frequently I got following three error messages although MoldFlow completed the analysis and I generated the report long times ago.

 

Error messages are:

1. ** WARNING 701360 ** Beam element 88933 has a very bad length/diameter ratio.

2. ** WARNING 700955 ** Two elements are too close

    First Element: id = 2615, location = Part_model.

    Second Element: id = 2627, location = Part_model.

 

3. ** WARNING 701500 ** Cannot freeze element 812

Why it happens? Is this occurs due to the overlapping of baffle elements? If I run one analysis keeping all overlapping of baffles the result will be proper or not?

Please use plain text.
Valued Contributor
PascalGosset
Posts: 71
Registered: ‎06-18-2010

Re: Can any one suggest me how to design baffle in Moldflow?

05-03-2011 02:07 AM in reply to: lahkar

So...

 

Error 1 : the circuits must have a length 2.5 to 3 times more important than their diameter.

See Help : Creating cooling channels manually.

But it is not always possible all along the circuits.

Normaly, this don't creates errors in calculations.

 

Error 2 and 3 : those warnings can lead to errors.

Look carefully your part meshing and correct it if necessary.

 

The warnings do not mean you will have errors in simulations.

Just take care carefully about the "strange" things in the results and the calculations summary.

 

"Maybe Moldflow does not work properly, but the real world neither."
Please use plain text.
Active Contributor
lahkar
Posts: 48
Registered: ‎10-24-2010

Re: Can any one suggest me how to design baffle in Moldflow?

05-03-2011 11:24 PM in reply to: PascalGosset

Thank you for your reply and kind assistance.

Please use plain text.