Assessment of different spatial/angular agglomeration multigrid schemes for the acceleration of FVM radiative heat transfer computationsAssessment of different spatial/angular agglomeration multigrid schemes for the acceleration of FVM radiative heat transfer computations Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2018-10-162016enThe development and comparison of different parallel spatial/angular agglomeration multigrid schemes to accelerate the finite volume method, for the prediction of radiative heat transfer, are reported in this study. The proposed multigrid methodologies are based on the solution of radiative transfer equation with the full approximation scheme coupled with the full multigrid method, considering different types of sequentially coarser spatial and angular resolutions as well as different V-cycle types. The encountered numerical tests, involving highly scattering media and reflecting boundaries, reveal the superiority of the nested scheme along with the V(2,0)-cycle-type strategy, while they highlight the significant contribution of the angular extension of the multigrid technique.http://creativecommons.org/licenses/by/4.0/Numerical Heat Transfer, Part B Fundamentals695389-412 Lygidakis Georgios Λυγιδακης Γεωργιος Nikolos Ioannis Νικολος Ιωαννης Taylor & Francis Heat transfer