API for FloEFD 15 (Pre-processing, Solving, Post-processing)

fung · May 2, 2018, 01:08

Hi. I am trying to us API to run FloEFD 15, including pre-processing, solving, post-processing. I found that there is only one API sample under the link “C:\Program Files\MentorGraphics\FloEFD API SDK 15\vb_sample”. Could anyone please give me advises on the follow issues? Thanks
1. Where can I find more samples/tutorials to use API to run FloEFD (including pre-processing, solving, post-processing)?
2. Is it possible to finished whole simulation procedures (including pre-processing, solving, post-processing) of FloEFD by using API?
3. Is there a record functions to record the setup procedures in FloEFD?
4. How to creat/change materials properties by using API?
5. I can use API to modify boundary conditions such as mass flow rate. Is it possible to creat a new boudnary condition by using API?

Boris_M · May 7, 2018, 05:32

Hi fung,

1. No, there are currently not more examples of the API. This should only give a rough idea of how it works, especially the whole initiation of starting FloEFD etc.

2. In V15 this is not possible. In V17 it is possible to define also some boundary conditions but not all boundary conditions are available and especially if you want to select specific surfaces, the interaction with the CAD system by selecting the faces is necessary. Here it is then possible to run from pre- to post-processing with the given boundary condition limitations.

3. You mean like recording a Macro? No.
There is, however, a possibility to save a template with all settings in V17, this is not possible in older versions. The older templates only saved the General Settings definitions, not boundary conditions etc.

4. This is possible in V17.

5. This is only possible in V17. Older versions were only able to change boundary condition values. In V17 the following boundary conditions can be created:
- Boundary Condition
- Electrical Boundary Condition
- Rotating Region
- Solid Material
- Surface Source
- Tracer Study
- Volume Source

Hope this helps,
Boris

fung · May 7, 2018, 06:37

Hi Boris,

Thank you very much for the reply.

I have tested API with FloEFD 15 standalone version. The API functions were working. I have installed the same API setup file “FloEFD API SDK 16 x64.exe” for FloEFD 16 Solid Edge version. The library “NIKCommonApiLIb” was appeared in Excel VB. However, All API functions such as “OpenDocument()” were not working for FloEFD 16 Solid Edge version. Was there anything wrong?
Sub OpenDocument()
Dim NCA As New NIKCommonApiLib.BaseApiObject
Dim MD As NIKCommonApiLib.ModelDoc
Dim retval As Boolean
retval = NCA.LoadProductAPI2("FloEFD FE", "16")
Set MD = NCA.Attach2RunningObject.OpenDocument("D:\fung\A1_ Ball_Valve\ball valve.asm", "Project1")
End Sub

Is it possible to create/modify Velocity contour plots, flow streamline plots, velocity vector plots by using API in FloEFD?

Boris_M · May 7, 2018, 09:12

You cannot use the V16 API SDK for a V15 software as the V15 software doesn't have the interface to the V16 API SDK. This has nothing to do with the CAD version, it needs the right version of the software and the API SDK.

No, the post processing is also limited. You can get some basic things such as values at a specific coordinate or the min and max parameter value in the computational domain and its location but you cannot create a cut plot and tell FloEFD to generate an image of it etc. This is something you will have to specify in advanced as in defining the cut plot and its settings and specify it in the batch results process so that after the solver has run, you can from the API run the batch result process which will then extract the plot images.

Regards,
Boris

fung · May 8, 2018, 04:30

Dear Boris

I see. Thank you very much.

fung · May 9, 2018, 05:35

Dear Boris,

I have also tested SolidEdge ST10 integrated with FloEFD FES16.3.0 Build 3898. (not standalone version) The API setup file which I installed is "FloEFD API SDK 16 x64.exe". I found that all API samples copied from FloEFD API help are not working. I don't know what is wrong.

A error message "Run-time error '91': Object variable or With block variable not set" was appeared for the line "Set MD = IA.ActiveDocument" when I executed the following API.

Sub Solve()
Dim NCA As New NIKCommonApiLib.BaseApiObject
Dim IA As NIKCommonApiLib.InteractiveApplication
Dim MD As NIKCommonApiLib.ModelDoc
Dim MC As NIKCommonApiLib.ModelConfiguration
Dim FDA As NIKCommonApiLib.FDAProject
Dim retval As Boolean
retval = NCA.LoadProductAPI2("FloEFD FE", "16")
Set IA = NCA.Attach2RunningObject
Set MD = IA.ActiveDocument
Set MC = MD.ActiveConfiguration
Set FDA = MC.GetFluidDynamicAnalysisProject
retval = False
retval = FDA.Solve(True, True, True)
NCA.UnloadProductAPI
End Sub

Thanks

Boris_M · May 9, 2018, 07:04

I think your issue might be a different one. If you go two rows up you are using the API for the standalone version for a Solid Edge version. The "FloEFD FE" needs to be "FloEFD FES".

I cannot tell if the rest is working with this correction, it might need some other fine-tuning. I recently worked on an example for V17 which I could send you but this is about creating boundary conditions which you cannot in older versions.

Regards,
Boris

fung · May 10, 2018, 00:55

Dear Boris,

Thanks for the comments.

I executed the "solver()" API with "FloEFD FES". The error message disappeared. However, there was nothing happened.

Yes. I want to have an example for V17.

You mentioned that in the previous reply I can get cut plot results by using API to run the batch result process if I defined the cut plot in advanced. Could you give me some examples for FloEFD 15?

Boris_M · May 10, 2018, 10:01

Hi Fung,

I put the API example for V17 at the link below. This link won't work forever. I think 5 days or so.
http://www.floefd.com/download/API_E...loEFDV5_17.zip

It is an Excel spreadsheet with the first sheet being able to run simulations. So here you can find all the required VBA information on running a model. You need to know that you have to start and load the model with the API and then start it. The API is just controlling FloEFD in terms of starting FloEFD, load the model you want and then if a project exists and is selected, run the project. If there is no FloEFD started, then you cannot run the project.

I don't have an example on the batch result process. But again, if FloEFD is started and the model opened, the project active and a batch result is specified, the command for that can simply run the batch result processing.
You will need to create the plot you want to have and define the batch result process settings. This means you need to specify which plots shall be created.
It doesn't allow to fully automate FloEFD, it helps to simplify processes by some automation but not fully.

Boris

fung · May 10, 2018, 22:46

Dear Boris,

I see. The API sample has been downloaded. Thank you very much.

Best regards,
Fung

fung · June 4, 2018, 03:29

Hi Boris,

I am working for temperature uniformity optimization by changing of geometry design. Is it possible to modify/replace simulation geometry (partially or whole geometry) by using API?

Thanks

Boris_M · June 27, 2018, 11:24

This is a CAD option not a FloEFD option. You will need to use the CAD API.
It gets difficult if the geometry you are changing has boundary conditions applied to it, then you might need to reapply the boundary condition if the geometry is replaced as the related reference geometry names will be different and FloEFD loses the reference if the name cannot be found anymore.

Regards,
Boris

kinosinos · March 10, 2022, 10:49

Hi Boris sir ,

I has study floEFD API recently, but still stuck in the beginning ..
May I have your API example for study ?
thanks!

Quote:

Originally Posted by Boris_M

Hi Fung,

I put the API example for V17 at the link below. This link won't work forever. I think 5 days or so.
http://www.floefd.com/download/API_E...loEFDV5_17.zip

It is an Excel spreadsheet with the first sheet being able to run simulations. So here you can find all the required VBA information on running a model. You need to know that you have to start and load the model with the API and then start it. The API is just controlling FloEFD in terms of starting FloEFD, load the model you want and then if a project exists and is selected, run the project. If there is no FloEFD started, then you cannot run the project.

I don't have an example on the batch result process. But again, if FloEFD is started and the model opened, the project active and a batch result is specified, the command for that can simply run the batch result processing.
You will need to create the plot you want to have and define the batch result process settings. This means you need to specify which plots shall be created.
It doesn't allow to fully automate FloEFD, it helps to simplify processes by some automation but not fully.

Boris

Isabella256 · September 2, 2023, 03:00

Hi Guys,
There wasn't a publicly available API for FloEFD 15 that allowed direct pre-processing, solving, and post-processing operations. FloEFD is a computational fluid dynamics (CFD) software package primarily used for simulating fluid flow and heat transfer in various industries.
However, software capabilities and APIs can change over time, so I recommend checking the official website or contacting the software provider (Mentor Graphics, now a part of Siemens Digital Industries Software) for the most up-to-date information regarding any APIs or custom scripting capabilities they might have introduced since then.

May 2, 2018, 01:08	API for FloEFD 15 (Pre-processing, Solving, Post-processing)	#1
fung New Member fung Join Date: May 2018 Posts: 8 Rep Power: 8	Hi. I am trying to us API to run FloEFD 15, including pre-processing, solving, post-processing. I found that there is only one API sample under the link “C:\Program Files\MentorGraphics\FloEFD API SDK 15\vb_sample”. Could anyone please give me advises on the follow issues? Thanks 1. Where can I find more samples/tutorials to use API to run FloEFD (including pre-processing, solving, post-processing)? 2. Is it possible to finished whole simulation procedures (including pre-processing, solving, post-processing) of FloEFD by using API? 3. Is there a record functions to record the setup procedures in FloEFD? 4. How to creat/change materials properties by using API? 5. I can use API to modify boundary conditions such as mass flow rate. Is it possible to creat a new boudnary condition by using API?

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May 7, 2018, 05:32		#2
Boris_M Disabled Join Date: Jul 2009 Posts: 616 Rep Power: 24	Hi fung, 1. No, there are currently not more examples of the API. This should only give a rough idea of how it works, especially the whole initiation of starting FloEFD etc. 2. In V15 this is not possible. In V17 it is possible to define also some boundary conditions but not all boundary conditions are available and especially if you want to select specific surfaces, the interaction with the CAD system by selecting the faces is necessary. Here it is then possible to run from pre- to post-processing with the given boundary condition limitations. 3. You mean like recording a Macro? No. There is, however, a possibility to save a template with all settings in V17, this is not possible in older versions. The older templates only saved the General Settings definitions, not boundary conditions etc. 4. This is possible in V17. 5. This is only possible in V17. Older versions were only able to change boundary condition values. In V17 the following boundary conditions can be created: - Boundary Condition - Electrical Boundary Condition - Rotating Region - Solid Material - Surface Source - Tracer Study - Volume Source Hope this helps, Boris

May 7, 2018, 06:37		#3
fung New Member fung Join Date: May 2018 Posts: 8 Rep Power: 8	Hi Boris, Thank you very much for the reply. I have tested API with FloEFD 15 standalone version. The API functions were working. I have installed the same API setup file “FloEFD API SDK 16 x64.exe” for FloEFD 16 Solid Edge version. The library “NIKCommonApiLIb” was appeared in Excel VB. However, All API functions such as “OpenDocument()” were not working for FloEFD 16 Solid Edge version. Was there anything wrong? Sub OpenDocument() Dim NCA As New NIKCommonApiLib.BaseApiObject Dim MD As NIKCommonApiLib.ModelDoc Dim retval As Boolean retval = NCA.LoadProductAPI2("FloEFD FE", "16") Set MD = NCA.Attach2RunningObject.OpenDocument("D:\fung\A1_ Ball_Valve\ball valve.asm", "Project1") End Sub Is it possible to create/modify Velocity contour plots, flow streamline plots, velocity vector plots by using API in FloEFD?

May 7, 2018, 09:12		#4
Boris_M Disabled Join Date: Jul 2009 Posts: 616 Rep Power: 24	You cannot use the V16 API SDK for a V15 software as the V15 software doesn't have the interface to the V16 API SDK. This has nothing to do with the CAD version, it needs the right version of the software and the API SDK. No, the post processing is also limited. You can get some basic things such as values at a specific coordinate or the min and max parameter value in the computational domain and its location but you cannot create a cut plot and tell FloEFD to generate an image of it etc. This is something you will have to specify in advanced as in defining the cut plot and its settings and specify it in the batch results process so that after the solver has run, you can from the API run the batch result process which will then extract the plot images. Regards, Boris

May 8, 2018, 04:30		#5
fung New Member fung Join Date: May 2018 Posts: 8 Rep Power: 8	Dear Boris I see. Thank you very much.

May 9, 2018, 05:35		#6
fung New Member fung Join Date: May 2018 Posts: 8 Rep Power: 8	Dear Boris, I have also tested SolidEdge ST10 integrated with FloEFD FES16.3.0 Build 3898. (not standalone version) The API setup file which I installed is "FloEFD API SDK 16 x64.exe". I found that all API samples copied from FloEFD API help are not working. I don't know what is wrong. A error message "Run-time error '91': Object variable or With block variable not set" was appeared for the line "Set MD = IA.ActiveDocument" when I executed the following API. Sub Solve() Dim NCA As New NIKCommonApiLib.BaseApiObject Dim IA As NIKCommonApiLib.InteractiveApplication Dim MD As NIKCommonApiLib.ModelDoc Dim MC As NIKCommonApiLib.ModelConfiguration Dim FDA As NIKCommonApiLib.FDAProject Dim retval As Boolean retval = NCA.LoadProductAPI2("FloEFD FE", "16") Set IA = NCA.Attach2RunningObject Set MD = IA.ActiveDocument Set MC = MD.ActiveConfiguration Set FDA = MC.GetFluidDynamicAnalysisProject retval = False retval = FDA.Solve(True, True, True) NCA.UnloadProductAPI End Sub Thanks

May 9, 2018, 07:04		#7
Boris_M Disabled Join Date: Jul 2009 Posts: 616 Rep Power: 24	I think your issue might be a different one. If you go two rows up you are using the API for the standalone version for a Solid Edge version. The "FloEFD FE" needs to be "FloEFD FES". I cannot tell if the rest is working with this correction, it might need some other fine-tuning. I recently worked on an example for V17 which I could send you but this is about creating boundary conditions which you cannot in older versions. Regards, Boris

May 10, 2018, 00:55		#8
fung New Member fung Join Date: May 2018 Posts: 8 Rep Power: 8	Dear Boris, Thanks for the comments. I executed the "solver()" API with "FloEFD FES". The error message disappeared. However, there was nothing happened. Yes. I want to have an example for V17. You mentioned that in the previous reply I can get cut plot results by using API to run the batch result process if I defined the cut plot in advanced. Could you give me some examples for FloEFD 15?

May 10, 2018, 10:01		#9
Boris_M Disabled Join Date: Jul 2009 Posts: 616 Rep Power: 24	Hi Fung, I put the API example for V17 at the link below. This link won't work forever. I think 5 days or so. http://www.floefd.com/download/API_E...loEFDV5_17.zip It is an Excel spreadsheet with the first sheet being able to run simulations. So here you can find all the required VBA information on running a model. You need to know that you have to start and load the model with the API and then start it. The API is just controlling FloEFD in terms of starting FloEFD, load the model you want and then if a project exists and is selected, run the project. If there is no FloEFD started, then you cannot run the project. I don't have an example on the batch result process. But again, if FloEFD is started and the model opened, the project active and a batch result is specified, the command for that can simply run the batch result processing. You will need to create the plot you want to have and define the batch result process settings. This means you need to specify which plots shall be created. It doesn't allow to fully automate FloEFD, it helps to simplify processes by some automation but not fully. Boris

May 10, 2018, 22:46		#10
fung New Member fung Join Date: May 2018 Posts: 8 Rep Power: 8	Dear Boris, I see. The API sample has been downloaded. Thank you very much. Best regards, Fung

June 4, 2018, 03:29		#11
fung New Member fung Join Date: May 2018 Posts: 8 Rep Power: 8	Hi Boris, I am working for temperature uniformity optimization by changing of geometry design. Is it possible to modify/replace simulation geometry (partially or whole geometry) by using API? Thanks

June 27, 2018, 11:24		#12
Boris_M Disabled Join Date: Jul 2009 Posts: 616 Rep Power: 24	This is a CAD option not a FloEFD option. You will need to use the CAD API. It gets difficult if the geometry you are changing has boundary conditions applied to it, then you might need to reapply the boundary condition if the geometry is replaced as the related reference geometry names will be different and FloEFD loses the reference if the name cannot be found anymore. Regards, Boris

September 2, 2023, 03:00		#14
Isabella256 New Member Isabella Miller Join Date: Sep 2023 Posts: 1 Rep Power: 0	Hi Guys, There wasn't a publicly available API for FloEFD 15 that allowed direct pre-processing, solving, and post-processing operations. FloEFD is a computational fluid dynamics (CFD) software package primarily used for simulating fluid flow and heat transfer in various industries. However, software capabilities and APIs can change over time, so I recommend checking the official website or contacting the software provider (Mentor Graphics, now a part of Siemens Digital Industries Software) for the most up-to-date information regarding any APIs or custom scripting capabilities they might have introduced since then.