How to model a 15-degree elbow in CII?
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How to model a 15-degree elbow in CII? I first click on \"bend\", then enter the distances for the two directions, and as a result, a large gap appears between the two pipes – no bending occurs. Is this kind of stress calculation valid? I hope experts can give some advice~{:3_59:}
It seems that the default elbow angle in CII is 90°±5°
I don’t know; I’m a complete novice in this area. I watched video tutorials and used a rigid component in place of that 15-degree elbow. My pipes are smoke pipes, quite large in size, and they aren’t standard elbows either~{:3_57:}
This is a display issue; sometimes the software has problems with displaying information – the elbows may not be shown, and sometimes even the pipes appear to be disconnected. But as long as the input data is correct and there are no errors in the calculations, the results will be accurate. Additionally, if it is a flue pipe, it is likely to be a large-diameter, thin-walled pipe; using C2 for calculations will not yield accurate results – displacement can only serve as a rough reference. Large-diameter pipes are flexible and can deform, so different calculation methods are required; finite element analysis is the best approach.
Well, I checked just now – it was because I got the order of selecting the bend options wrong. Now it’s showing correctly; it’s a large-diameter thin-walled tube. There isn’t much thermal stress at the flue gas outlet. I just wanted to check the wind load, so as to ensure that such a large tube doesn’t get blown over, which would be awkward{:3_59:}
The flue pipe is square, right? CII can’t be used.
In that case, errors will be detected; using C2 isn’t accurate enough – it’s better to use finite elements
I make circles. It can be done simply using CII, just to check the wind load
There is indeed a bend where it’s indicated that the length is insufficient; I just want to get an approximate figure for the wind load to provide to the civil engineering team. I really can’t use finite element analysis{:3_50:}