BBIPED: BCAM-Baltogar Industrial Platform for Engineering design

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1 BBIPED: BCAM-Baltogar Industrial Platform for Engineering design Carmen Alonso-Montes, Imanol García, Ali Ramezani, Lakhdar Remaki BCAM Basque Center for Applied Mathematics (Bilbao), Spain

2 Motivation New industrial challenges must be faced through the proposal and implementation of innovative techniques Domain: Turbomachinery Applications The BCAM-Baltogar Industrial Platform for Engineering Design (BBIPED) was designed to cope with the full CFD workflow in turbomachinery applications Integrates other open-source solutions (Salome platform and Paraview) in the life cycle Automatize the usage of SU2, as main solver engine Customized solutions have been integrated in the platform Baltogar Axial Fan 3

3 BBIPED in a nutshell CAD/Mesh generation (Salome Platform) Some customized functionality is provided (e.g. automatic mesh generation) Solver simulation (SU2 tool from Standford) BBIPED Lib with customized techniques (e.g. Multizone MRF and Virtual MRF) Data post-processing & Visualization (Paraview Tool) 4

4 Feature 1: BBIPED GUI User friendly Specific views adapted to experts and non-expert users Help support Easy set up of solver engines SU2 is by default, but you can choose another SU2-based solvers Solutions for Multizone and Virtual Multiple Rotating Frame included Validation fields Graphical evolution of the simulation The main goal of BBIPED GUI is to homogenize the usage by the engineers, easily adapting to different profiles 5

5 BBIPED GUI: Easy parameter configuration & help 6

6 BBIPED GUI: Graphical control of the simulation 7

7 Feature 2: BBIPED Geometry Parametrization & Automatic Mesh Generation Analysis of common and variable parts A formal analysis of the meshes must be performed manually Identification of Parametrization points Identification of Salome Commands The formal template is created from the prior analysis Users can create a new mesh based on templates through BBIPED GUI BBIPED Geometry Engine will create a Salome compliant geometry file Salome will generate the desired Mesh based on user configuration 8

8 Experiments: Automatic Mesh Generation 9

9 Feature 3: BBIPED Multiple Rotating Frame Goal: Accurate and cost effective simulation of turbulent flow caused by fixed and rotating frames Solution: Multizone Multiple Rotating Frame (MRF) Advantages: The Navier-stokes equations are rewritten in the rotating frame, therefore no need to rotate physically the mesh. But only steady state is solved Disadvantages: The interface is created at CAD level, which is not often an easy task. In case interface adjustment is needed, this implies to change CAD, then re-mesh again Alternatives Virtual MRF (VMRF) Definition of a virtual interface at the solver level while using only one mesh. Any modification will done at the solver input, no need to re-mesh. 10

10 Experiments: MMRF & VMRF Baltogar turbofan mesh Tests were made using BBIPED (MMRF and VMRF approaches) and commercial tools (Ansys-Fluent v. 14.5) Assessment includes all basic aspects of turbomachinery Rotating fan, fix volute and mixing zone with high speed free stream Mach flow = 0.6 Angular speed of 150 rad/s Flow is assumed to be inviscid and compressible 11

11 Multizone MRF 12

12 Experiments: MMRF & VMRF Pressure along the dark red line Using BBIPED (MMRF and VMRF) And compared with ANSYS Fluent 13

13 Experiments: MRF vs Virtual MRF NREL Wind Turbine: M =0.03, Ω=7.4rad/s MRF vs VMRF results at different blade cross section 14

14 BBIPED - Video 15

15 Conclusions & Roadmap BBIPED is oriented to industrial needs Innovative and cutting-edge approaches techniques have been implemented VMRF and MMRF with good results in terms of accuracy compared with commercial tools Automatic mesh geometry for a set of turbofans of Baltogar Defined a formal methodology to deal with automatic mesh geometry analysis and generation BBIPED platform exploits reliable open-source technologies all-together with our own developments Salome-Platform Paraview Tool SU2 Standford tool BBIPED Roadmap We plan to extend BBIPED capabilities to other domains: Renewable energy (wind turbine) Aeronautics Water and heat management New facilities are already under study Multiphysics Proper Orthogonal Decomposition (POD) and Genetic Algorithms (GA) for optimization New turbulent models Medical Applications 16

16 Acknowledgement BBIPED platform was developed within the project Development of an efficient, flexible and innovative CFD computational Platform to optimally simulate and design industrial products and processes, (BFA/DFB-6/12/TK2012/00020) funded by Speciall thanks to our collaborator in this project: 17

17 Thank you for your attention! Any question? More info: 18

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