turn on suggestions

Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Showing results for

- Navigation
- Simcenter
- Forums
- Blogs
- Knowledge Bases

- Siemens PLM Community
- Simcenter
- CAE Simulation - Simcenter 3D Forum
- NX Thermal-Flow Time to reach steady state tempera...

Options

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page

Highlighted

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

09-13-2018 09:09 AM

I built up a coupled flow and thermal analysis model on an electronic assembly using NX 11 and Simcenter Thermal/Flow Solver (Solution Type: Steady State). Calculated temperature results seem reasonable to me, but it would also be interesting to see how long it takes to reach steady state conditions. Is there a way to look up the time necessary to reach steady state conditions directly from a steady state solution?

Solved! Go to Solution.

5 REPLIES

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

09-13-2018 10:21 AM

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

09-13-2018 10:41 AM - edited 09-13-2018 11:02 AM

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

09-13-2018 11:26 AM

Yes, it is necessary to run a transient analysis to determine the time needed to reach steady state.

A steady state solution is simpler/faster because transient terms have been removed. As indicated in the previous response, this is a fundamental assumption. As such, a steady state analysis cannot give any type of time estimate.

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

09-17-2018 09:06 AM - edited 09-17-2018 09:36 AM

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

09-17-2018 09:53 AM

See Continue a transient solution in the online help

Follow Siemens PLM Software

© 2019 Siemens Product Lifecycle Management Software Inc