Journal Article10.1017/S0001924000004449
Achieving high parallel performance for an unstructured unsteady turbomachinery CFD code
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TL;DR: In this paper, the authors describe the work done to achieve high parallel performance for an unstructured, unsteady turbomachinery computational fluid dynamics (CFD) code, which is in design use in industry and is also used as a research tool at a number of universities.
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Abstract: This paper describes the work done to achieve high parallel performance for an unstructured, unsteady turbomachinery computational fluid dynamics (CFD) code. The aim of the work described here is to be able to scale problems to the thousands of processors that current and future machine architectures will provide. The CFD code is in design use in industry and is also used as a research tool at a number of universities. High parallel scalability has been achieved for a range of turbomachinery test cases, from steady-state hexahedral mesh cases to fully unsteady unstructured mesh cases. This has been achieved by a combination of code modification and consideration of the parallel partitioning strategy and resulting load balancing. A sliding plane option is necessary to run fully unsteady multistage turbomachinery test cases and this has been implemented within the CFD code. Sample CFD calculations of a full turbine including parts of the internal air system are presented.
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Citations
Efficient Finite Element Analysis/Computational Fluid Dynamics Thermal Coupling for Engineering Applications
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Efficient Edge-Based Rotor/Stator Interaction Method
TL;DR: A method to address the rotor/stator interaction problem on an edge-based Reynolds-averaged Navier–Stokes solver is presented and the implementation of the phase-lagged boundary conditions and a new original conservative discretization of the sliding plane in an unstructured solver are discussed in detail.
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Computational fluid dynamics for turbomachinery internal air systems
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TL;DR: The use of computational fluid dynamics (CFD) for aeroengine internal flow systems has been made in recent years and incorporation of three-dimensional geometrical features and calculation of unsteady flows are becoming commonplace as discussed by the authors.
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Hybrid LES Approach for Practical Turbomachinery Flows-Part I: Hierarchy and Example Simulations
Paul G. Tucker,Simon Eastwood,Christian Klostermeier,Richard Jefferson-Loveday,James Tyacke,Yan Liu +5 more
TL;DR: In this paper, a numerical LES (NLES) hierarchy and hybrid LES-RANS related approach is proposed to resolve geometry dependent turbulence as found in complex internal flows, where the RANS-NLES hybridization makes further sense for compressible flow solvers.
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Large-Eddy Simulations of Wall Bounded Turbulent Flows Using Unstructured Linear Reconstruction Techniques
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TL;DR: In this paper, large-eddy simulations of wall bounded, low Mach number turbulent flows are conducted using an unstructured finite-volume solver of the compressible flow equations.
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