×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Solidification in Ansys- Enthalpy dimensions-wronge results

Solidification in Ansys- Enthalpy dimensions-wronge results

Solidification in Ansys- Enthalpy dimensions-wronge results

(OP)
Hey guys,

I am simulating a solidification of a solder drop in a substrate, dimensions are all in micro range and the procedure takes 20ms (drop hits the substrate and then cools down to the room temperature)
when i use ansys to simulate the experiment (transient, stepped load and everything) i get results in the micro-second range.
i tried everything but the scaling is still a problem, it might be that my dimensions are not compatible. is there any one who has done thermal simulations using enthalpy values?
these are the dimensions i am feeding to the software:

Units: SI
Length:m
Density: Kg/m3
Specifiec Heat: J/Kg°C
Conductivity: W/m°C
Convection: W/m2°C
Enthalpy: J/kg (this dimension is kindda strange to me)

I dont use the /UNIT command cause im feeding everything myself (i take care of all dimensions). could that be the problem?
there is a casting tutorial in ansys help but the dimensions are not in SI units and i couldnt convert the enthalpy dimensions there to see if im on the right track.

Help me out please,
Aknil
 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources