[L4M496]

Hi,

I am running a parametric study and I have noticed in solution monitoring that there is no evidence that fluent initialises the case before starting to solve. Am I missing something here? As a test I had create 2 design points which should result in the same solution (because the input parameters are identical) and I do not have the same solution. I am therefore starting to doubt the validity of my solutions.

Could somebody provide some insight into this as I feel I have to start each case manually.

Thanks

Update: On some of the design points, it takes something like 5-10 iteration to converge?? but other design points take 1000+?

[LoGaL]

I think it somehow interpolates the solution from previous solutions at a different parametric point. That is why it's not initializing

[L4M496]

Originally Posted by LoGaL

I think it somehow interpolates the solution from previous solutions at a different parametric point. That is why it's not initializing

Well, as long as this is what it is supposed to do then its OK. But I find it weird that I can't get repeatable solutions because of this. (that being said the percentage difference on the solution is very small).

[LoGaL]

You should be able to turn it off in the workbench, by selecting the fluent block and then choosing the initalization method

[L4M496]

Originally Posted by LoGaL

You should be able to turn it off in the workbench, by selecting the fluent block and then choosing the initalization method

Well that it something I definitely want to do, may I ask how I get to this option. I have had a quick check online but it has not been made clear how I can re-initialise for every design point (i.e. after convergence is complete). Instead references are only made to after a certain number of iterations.

[十六号]

Originally Posted by L4M496

Well that it something I definitely want to do, may I ask how I get to this option. I have had a quick check online but it has not been made clear how I can re-initialise for every design point (i.e. after convergence is complete). Instead references are only made to after a certain number of iterations.

Hi, L4M496, hope it's not too late (LOL). As LoGaL said, right click the "set up" in the Fluent block in the workbench, there should be a "properties". Then it shows on the right side of your screen. There you will find "initalization method". Chose "controlled by solver". Otherwise, "controlled by program" means compute of this DP is used by the data of last DP.