2015
DOI: 10.1016/j.compfluid.2015.03.030
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Enhancing performance and scalability of data transfer across sliding grid interfaces for time-accurate unsteady simulations of multistage turbomachinery flows

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Cited by 8 publications
(10 citation statements)
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“…Unsteady computations require sliding planes to account for the relative movement between rotor and stator. In Hydra, these were implemented following the method of Blades et al [ 15 , 26 ]. A layer of halo nodes on each side of the interface form a one cell overlap with the adjacent zone.…”
Section: Hydra Solversmentioning
confidence: 99%
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“…Unsteady computations require sliding planes to account for the relative movement between rotor and stator. In Hydra, these were implemented following the method of Blades et al [ 15 , 26 ]. A layer of halo nodes on each side of the interface form a one cell overlap with the adjacent zone.…”
Section: Hydra Solversmentioning
confidence: 99%
“…It is also necessary to consider the processing of the data at the interfaces and the impact that the updating strategy has on the convergence of each single domain. Ganine et al [ 15 ] illustrated this scenario for an unsteady simulation involving two zones in a turbine stage: in their example, a performance improvement in the coupled simulation was achieved by dedicating a set of intermediary processors to exclusively perform the search and interpolation operations needed to exchange across the moving interface. The benefit here stems from the fact that the interpolation can be evenly distributed among the coupling processors, while some of these operations can be overlapped with the work carried out at the same time by the two solvers [ 15 ].…”
Section: Introductionmentioning
confidence: 99%
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“…These are namely the sliding interface method (e.g. [9][10][11]) and the overset grid method. The principle of the overset grid method consists in the discretization of the flow on di↵erent meshes, that are coupled over a common geometrical zone so as to allow the proper exchange of the necessary information.…”
Section: Introductionmentioning
confidence: 99%
“…For unsteady simulations, the sliding interface technique [158][159][160] is used which is a special type of overset grids [161]. Its parallelization is based on the OPlus library [162,163], section 2.7.…”
Section: Sliding Interfacementioning
confidence: 99%