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New Idea
1 Kudo

Flow Vs Time plot; fot transient analysis

Status: New Idea
by mayur.harip on ‎07-22-2014 09:50 PM

After solving for Transient analysis, i need to see the effect on flow (flow vs time plot). But currently such plot is not available as a direct output unlike velocity, press, temp. Same is the case for plots available at monitoring points. So for this I need to extract flow values for every iterations / time steps from either summery file or from bulk results by creating a plane. This is very tideous procedure!


8 Kudos


Status: Under Review
by alain.benchissou on ‎05-26-2014 05:40 AM




I would like to be able to measure distances within Study environment.

Like in a CAD or Mechanical



Status: Under Review
8 Kudos

Set legend to plane

Status: New Idea
by dts on ‎05-22-2014 07:54 AM

I would like to have the possibility to set the legend acording to the max and the min value on a section plane:


It would make it easy to see details wich otherwise remain hidden...

set to plane.png

6 Kudos

Combustion module

Status: New Idea
by pschneider on ‎05-09-2014 12:49 PM

Create a phase change combustion module to show proper heat release and flame impingements.  Having the ability to see post combustion chemical breakdown such as NOx or CO would be great but to be able to predict temperatures around combustion equipment is the primary desire.

1 Kudo

Define image resolution for export

Status: New Idea
by jarrodpirtle on ‎06-16-2014 09:56 AM

Add the ability to define the resolution of static images when exporting. It would be nice to get some higher resolution images into my reports. Also, the text of the scale bare should be a standard vector-based font such as Arial so that it does not look pixelated.

1 Kudo

Improved Color Maps

Status: Under Review
by Valued Contributor nhahn on ‎06-11-2014 10:21 AM


Please increase the number and variety of color maps available in the legend, and/or allow the user to import or create their own color map.  Even the limited legends in Sim Mechanical are more flexible and useful.


The present color maps are very limited, and out of date with regards to current standards of data visualization - and may even cause users to be in violation of accessibility standards.  In particular, the default rainbow map is:

(a) bad for color-blind users, a surprisingly large percentage of the population,

(b) bad because it artifically creates distinctions between regions while making it hard to judge real gradients.

(c) hard to use with the other color maps because they look similar but have different meanings.


However, there's not much alternative in Sim CFD at present... The greyscale color maps allow accurate visualization of realistic gradients, but are hard to see on neutral-colored backgrounds, and not very exciting.  The thermal color maps are good but only for very specific uses.


There are a ton of resources on the web for explaining why rainbows are (usually) not appropriate

- classic: Rainbow Color Map (Still) Considered Harmful

- shorter: How The Rainbow Color Map Misleads

- target audience: Why Should Engineers and Scientists Be Worried About Color?



As well as good sources for generating and specifying useful color maps, and which is appropriate wil vary depending on the use (Color Brewer is popular).  There are even ones that describe how to create a non-distorting disability-friendly rainbow (The Rainbow is Dead, Long Live the Rainbow!).


This seems like low hanging fruit and will keep people from turning to external software to do high value plotting of results.

Status: Under Review
12 Kudos

This option would be especially useful when you are running with ISC enabled or free surface to get a better idea of how long the solver has progressed.


There is a common mis-conception, especailly with free surface, that the time step is always 0.01 (if using guidelines), when it is really based on the free surface courant calculation.

16 Kudos

With the release of 2014 the XYZ triad was removed from the navigation cube.


Please bring this back as it is very useful when setting up models and you need to determine what your basic flow direction is.  Now you need to zoom back out to look at the larger triad or find the origin triad and remember what the colors represent.

3 Kudos

1. Make part names/numbers more flexible and readable.

  • It would be helpful to be able to rename (or create a display alias) and/or renumber parts in CFD.  When they come from CAD it seems arbitrary what order they are in, and if I change the CAD model the part numbers move around, and mess up my summary parts.  I know you can make rules for this, but it seems unecessarily complicated vs. just changing the name/number.  Also, sometimes the CAD names are not pretty or self-explanatory, and I want to show the CFD results to a client with a legend they can understand. 
  • It would be good to allow word-wrap in the design study browser so we can see long part names and BC names.


2. Allow some way to associate different parts from different designs to the same summary part.  Again, this is for when I add something to a model, or change a part in an assembly, and the summary parts no longer correspond. 


3. Improve the usefulness of the results part output. 

  • The wall of text is OK for model diagnostics, but it would be much better in a tabular form, and much more useful if it could be exported as a CSV or other data file type instead of text. 
  • Also, make this organized by timestep (or select whether it's sorted by timestep or part number).  Right now if I have 4 saved results, I get all 4 from part A, then all 4 from part B, etc.  Usually I'm looking for the latest.
  • Allow me to select which results to calculate. Usually I only care about one value, and don't want to see the bounding box etc. for every part every time.
  • Let me resize the bloody window so I can read the text! (this is everywhere not just here).

4. In the summary parts output,

  • Let me resize or rename the columns
  • Let me plot part values vs time step in addition to vs each other (would love to be able to do this without creating a summary part)
  • Let me show more than one result value row per part instead of having to choose from pulldown list.



12 Kudos

Can the "Points" window be expanded?

Status: New Idea
by Contributor dkusmer on ‎06-10-2013 01:56 PM

Apparently the "Points" window is a fixed window. It would be nice if it was expandable so the full "Name" description can be seen (see diagram below)?


Thanks, Dan


Points window.png



See...Can the "Points" window be expanded? ...in the Autodesk Simulation CFD discussion group for more information.

6 Kudos

A bug in clip feature

Status: Accepted
by *Expert Elite* on ‎09-13-2013 01:13 AM

From what I understand, the clip feature "hollows out" the geometry and thus only the outter most surfaces of walls and BCs remain. Then it cuts these surfaces off at the clipping plane and thus you get a sealed surface of walls, BCs and clipping plane, giving an illusion of cut geometry. But when I use it, I see an anomaly there. Have a look at the attached pic.








As you can see, the walls and BCs are not cut exactly at the clipping plane and extend beyond it. This doesn't look like what I want. The workaround I am using is to adjust the position of clipping plane so that the "actual cut" is at the middle plane and finally seal it off with the middle plane, but this still leaves very small projections of these walls uncut and clabbers the view. 


Can this bug be corrected please?






Status: Accepted
Thanks for detailing the issue. This has been reviewed by the QA team and is now being tracked. It turns out that resolving this will not be trivial and it involves some fairly significant changes. But now at least we have a record of the issue and can work towards it. Thanks, Jon
2 Kudos

Bulk Calculations Over Time Steps and Save

Status: New Idea
by Active Contributor sgold on ‎02-10-2014 08:10 AM

Very Simply.  Calculate the Bulk calculations over all or some Time steps and allow Export to a file.


It is VERY tediuous to have to change each step then type or write down the results.


The next step is to chart these results over time, but just getting the data and doing the results in excel would be a first, much needed, step.

10 Kudos

Show / hide materials in results

Status: Solution Provided
by jarrodpirtle on ‎02-20-2013 04:06 PM

I can be helpfull to show suppressed elements in results, but they must be turned on one by one. Please allow users to select all or a group and check the "visible" box all at once.

1 Kudo

Look at plane

Status: New Idea
by Contributor RobTipples on ‎03-31-2014 03:20 AM

If I do a planar section, it takes me time to line up the view panel with the result plane. A 'look-at' button to point the camera at the surface/plane would be very handy.

2 Kudos

Add the result Quantity Dynamic Pressure

Status: New Idea
by Product Support on ‎12-19-2013 08:38 AM

Dynamic pressure is a simple result quantity that users are looking to see on result planes.


1 Kudo

Simultion monitor

Status: New Idea
by Contributor RobTipples on ‎03-07-2014 07:03 AM

To make sure that my model is running with the correct parameters (ie. making sure I didn't accidently set the wrong unit type), I check max/min pressure for the system 10 iterations in. I'm guessing that most experienced users of CFD can judge if the simulation will be a waste of time based on max/min values for pressure and velocity.


Is it possible to have the simulation monitor report these values so I don't have to have Autodesk CFD open?

3 Kudos

Custom designed functions

Status: New Idea
by *Expert Elite* on ‎09-20-2013 02:41 AM

I would like to see the capability of custom fucntions. E.g. If I want to see the angle between Y and Z velocity for an inclination, I could easily create the tan inverse and view it in contor etc. Currently I have to export the results on a plane and use Mathcad to post process the contours, and this is not quick and easy. 




3 Kudos

Clean up the Results Plane Outline Mode

Status: New Idea
by Product Support on ‎08-27-2013 11:43 AM

With many models, when you display a plane you will see the plane outline not only the perimeter, but the mesh edges as well.


This can be very distracting especially to a new user.


The primary workaround is to turn off the outline, but it is a hidden option that isn't easily found.


See attached picture for an example.  

6 Kudos

Result Global Vectors independent from mesh

Status: New Idea
by J.Niesner on ‎01-29-2013 03:34 AM

Now you get one vector per mesh node. In Areas with small mesh elements ther eis nothing to see excapt vectors.

1 Kudo

Convert the current "Saved Views" into a proper browser similar to what Revit has. The views located here would also include annotation and intelligent tagging. Tags would include identification marks as well as results information. Additional information would be added using a text tool.

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