6533b85bfe1ef96bd12bb307
RESEARCH PRODUCT
Turbulence model effect on heat exchange characteristics through the neutron beam window for European spallation source
S. SpitansAndris Jakovicssubject
Engineeringbusiness.industryTurbulenceApplied MathematicsFlow (psychology)Mechanical engineeringHeat transfer coefficientMechanicsComputer Science ApplicationsComputational Theory and MathematicsThermalHeat transferHeat exchangerSpallationElectrical and Electronic EngineeringbusinessLarge eddy simulationdescription
PurposeThe purpose of this paper is to compare k‐ω shear‐stress transport (SST) and large eddy simulation (LES) turbulence model application effect on numerical computation of flow pattern and heat exchange characteristics through the neutron beam window region for European spallation source setup model.Design/methodology/approachTransient hydrodynamic and thermal calculations with appropriate heat sources are performed using both turbulence models and typical discrepancies in flow and thermal patterns are discussed, as well as, simulation results are qualitatively compared with experimental data for heat transfer coefficient distribution α at the window surface.FindingsContribution of greater k‐energy field obtained with LES calculation leads to prediction of more intensive heat transfer in comparison to k‐ω SST.Originality/valueThe paper illustrates discrepancies of thermal patterns caused by application of k‐ω SST and LES turbulent models.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-09-13 | COMPEL - The international journal for computation and mathematics in electrical and electronic engineering |