![]() ![]() Power losses arising out of the gap are also described considering a detailed description of the gap flow. This combined approach allows a more detailed description of the effects of the lateral and radial lubricating gaps on the operation of the machine. The present work details the procedure developed to implement the coupled approach. This enables a calculation of the pressure distribution in the lateral lubricating gaps between the gears and the sliding bushings of the external gear machines considering full hydrodynamic lubrication. ![]() The CFD model developed is an automatic pre-processor and a finite volume numerical solver of the Reynolds Equation. tooth profile, design of sliding elements) and the movements of the gears" axes of rotation resulting from the forces exerted on both gears. The tool described is named HYGESim (HYdraulic GEar machines Simulator) it enables detailed modelling of external gear machines, taking into account a lumped parameter fluid dynamic model to simulate the flow through the unit, an accurate description of the geometry of the components (i.e. The main contribution of the paper is to show the benefits of employing Julia as a programming language for scientific applications, and Gridap as a Finite Element library, which provided easy access to high performance resources as multi threading, parallel processing, GPU acceleration, thus great versatility in solving complex problems.Ī novel approach to couple a Lumped Parameter model and a CFD model to accurately model External Gear machines is described in this paper. The proposed benchmark problem, even addressing a relatively simple geometry and a linear differential equation, has singular regions that cause numerical difficulties, thus limiting the rate of convergence of the numerical approximations. We compared results obtained employing diverse numerical and computational choices, such as variable mesh refinement levels, finite element interpolation order, pre-conditioner classes, and solver configurations (architecture, memory, multi-threading, etc.). As a continued effort, this paper is intended to reproduce results previously obtained of pressure distribution and velocity field, now employing Gridap, a Julia language-based library, able to explore different approaches of approximation Finite Element spaces, and high performance solution strategies. More.Several numerical simulations of drug release from coronary drug-eluting stents were formerly performed by the authors through Matlab © and Octave to understand transport and binding mechanisms over the device/artery interface. This structure is used as a human readable output format that decipheres the information contained in Mesh::FaceInfo when using the Mesh::GetFaceInformation() method. This information can be accessed using methods like GetFaceElements(), GetFaceInfos(), FaceIsInterior(), etc. This structure stores the low level information necessary to interpret the configuration of elements on a specific face. ![]() This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |