Detail publikačního výsledku

Inverse calculation of local heat transfer coefficient on generic surfaces in OpenFOAM

BOHÁČEK, J.; HNÍZDIL, M.; HVOŽĎA, J.; FERRO, L.; KARIMI-SIBAKI, E.; VAKHRUSHEV, A.

Originální název

Inverse calculation of local heat transfer coefficient on generic surfaces in OpenFOAM

Anglický název

Inverse calculation of local heat transfer coefficient on generic surfaces in OpenFOAM

Druh

Článek WoS

Originální abstrakt

The inverse heat conduction problem (IHCP) is a classic example from the large family of inverse problems, in which a thermal boundary condition is reconstructed on a surface of a body. When the normal fluxes dominate the heat transfer and the tangential fluxes are small, the problem can be simplified into one dimensional. Often, the opposite is true and a multidimensional problem needs to be solved. This paper presents a universal IHCP solver implemented in the open-source code OpenFOAM, whose main advantages are polyhedral meshes, variety of linear solvers, parallel calculations, being an open-source. The solver is robust, efficient and accurate. The quality of the solver is demonstrated on three examples: (i) jet cooling in the pressure die casting, spray cooling of (ii) a rail and (iii) a tube. Valuable data from experiments were used as an input in all three examples. Additionally, this paper introduces, for the first time, a novel semi-analytical formula for determining the optimal number of future timesteps required to solve the sequential IHCP.

Anglický abstrakt

The inverse heat conduction problem (IHCP) is a classic example from the large family of inverse problems, in which a thermal boundary condition is reconstructed on a surface of a body. When the normal fluxes dominate the heat transfer and the tangential fluxes are small, the problem can be simplified into one dimensional. Often, the opposite is true and a multidimensional problem needs to be solved. This paper presents a universal IHCP solver implemented in the open-source code OpenFOAM, whose main advantages are polyhedral meshes, variety of linear solvers, parallel calculations, being an open-source. The solver is robust, efficient and accurate. The quality of the solver is demonstrated on three examples: (i) jet cooling in the pressure die casting, spray cooling of (ii) a rail and (iii) a tube. Valuable data from experiments were used as an input in all three examples. Additionally, this paper introduces, for the first time, a novel semi-analytical formula for determining the optimal number of future timesteps required to solve the sequential IHCP.

Klíčová slova

Inverse heat conduction problem; die casting; Jet cooler; Spray cooling; Rail; Tube; Future timesteps

Klíčová slova v angličtině

Inverse heat conduction problem; die casting; Jet cooler; Spray cooling; Rail; Tube; Future timesteps

Autoři

BOHÁČEK, J.; HNÍZDIL, M.; HVOŽĎA, J.; FERRO, L.; KARIMI-SIBAKI, E.; VAKHRUSHEV, A.

Vydáno

16.08.2025

Nakladatel

Elsevier

ISSN

1778-4166

Periodikum

INTERNATIONAL JOURNAL OF THERMAL SCIENCES

Svazek

219

Číslo

110208

Stát

Francouzská republika

Strany od

1

Strany do

13

Strany počet

13

URL

https://www.sciencedirect.com/science/article/pii/S1290072925005319

Plný text v Digitální knihovně

http://hdl.handle.net/11012/255550

BibTex

@article{BUT198536,
  author="Jan {Boháček} and Milan {Hnízdil} and Jiří {Hvožďa} and Lorenzo {Ferro} and Ebrahim {Karimi-Sibaki} and Alexander {Vakhrushev}",
  title="Inverse calculation of local heat transfer coefficient on generic surfaces in OpenFOAM",
  journal="INTERNATIONAL JOURNAL OF THERMAL SCIENCES",
  year="2025",
  volume="219",
  number="110208",
  pages="1--13",
  doi="10.1016/j.ijthermalsci.2025.110208",
  issn="1290-0729",
  url="https://www.sciencedirect.com/science/article/pii/S1290072925005319"
}

Dokumenty

1-s2.0-S1290072925005319-main