#6366 closed defect (wontfix)
Function "kc_roundTube_KC" at Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_roundTube_KC
| Reported by: | anonymous | Owned by: | Adeel Asghar |
|---|---|---|---|
| Priority: | high | Milestone: | NeedsInput |
| Component: | OMEdit | Version: | 1.16.1 |
| Keywords: | Cc: |
Description
Dear OM-team,
if I run the function "kc_roundTube_KC" with valid values for IN_con.geometry == TYP.WavyFin, I get following error:
"[...] functions.c:3623: Invalid root: (1.#INF)(0.122917)
Simulation process failed. Exited with code -1."
The bug can be fix if the variable SI.ReynoldsNumber Re_Dc are not calculated at the beginn but in the algorithm part
suggestion:
Line 1300
SI.ReynoldsNumber Re_Dc "Reynolds number based on fin collar diameter";
Between Line 1332 and 1333
Re_Dc := max(MIN, abs(IN_var.m_flow) * IN_con.D_c / (IN_var.eta * A_c));
many regards
Chris
Change History (2)
comment:1 by , 4 years ago
| Resolution: | → wontfix |
|---|---|
| Status: | new → closed |
comment:2 by , 4 years ago
Done, see https://github.com/modelica/ModelicaStandardLibrary/pull/3743. However, I am not sure, if this actually is an OSMC bug when determing the variable incidences.
The OSMC is not responsible for the Modelica.Fluid library, we just take it as it is from the Modelica Association. Could you please open a ticket on the Modelica Standard Library issue tracker?