Error from the CalculiX adapter for CHT coupling with heat-flux

Makis · February 6, 2026, 5:08pm

@SarahDi the problem is clear and the fix easy:

github.com/precice/calculix-adapter

Revert unrelated formatting (#148)

develop ← fix-35-again

opened 05:00PM - 06 Feb 26 UTC

MakisH

+3 -4

Bugfix for an issue reported by a user in https://precice.discourse.group/t/erro…r-from-the-calculix-adapter-for-cht-coupling-with-heat-flux/2718 Running the `flow-over-heated-plate-two-meshes` tutorial, the CalculiX adapter fails with: ``` terminate called after throwing an instance of ‘fkyaml::v0_4_2::type_error’ what(): type_error: The target node is not of a container type. type=NULL_OBJECT ``` because the configuration only includes one of `write-data`/`read-data` per interface, but not both: ``` participants: Solid: interfaces: - nodes-mesh: Solid-Mesh-nodes patch: yend read-data: [Temperature] - faces-mesh: Solid-Mesh patch: flux_interface write-data: [Heat-Flux] ``` triggering a behavior similar to the one described in #35 for uni-directional coupling per interface. This PR moves the `config["participants"][participantName]["interfaces"][i]["write-data"].size();` operator into the branch that first checks if `config["participants"][participantName]["interfaces"][i]["write-data"]` exists.

You can now pull develop again.

(sorry for the delay, I only now managed to find some time to look at it)

Topic		Replies	Views
OpenFOAM + CalculiX heat exchanger (CHT) tutorial does not run Official adapters and tutorials openfoam , adapters , calculix	6	729	September 16, 2020
preCICE mesh id (-1) error (OpenFOAM+CalculiX CHT) Official adapters and tutorials openfoam , calculix , cht	21	1965	May 19, 2021
Flow over a heated plate two meshes case Official adapters and tutorials calculix , cht	5	220	August 11, 2023
CalculiX participant Mesh empty (OpenFOAM+CalculiX CHT) Official adapters and tutorials configuration , calculix	3	637	August 24, 2020
Thermal coupling or FSI with preCICE Official adapters and tutorials calculix	3	312	December 13, 2022

Error from the CalculiX adapter for CHT coupling with heat-flux

Related topics