Ali Ramezani –
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BCAM-Basque Center for Applied Mathematics Alameda Mazarredo, 14.,48009 Bilbao Bizkaia, Basque Country, Spain T +34 946 567 842 u +34 946 567 843 B [email protected] Ali Ramezani Í http://www.bcamath.org/en/people/aramezani Present position 2013–Present Senior Research Fellow, BCAM-Basque Center for Applied Mathematics, Bilbao, Spain. CFD Research Group Education 2003–2009 PhD, Sharif University of Technology, Tehran, Iran, Aerospace Engineering- Aerodynamics. 1999–2002 MS, Sharif University of Technology, Tehran, Iran, Aerospace Engineering- Aerodynamics. 1994–1999 BS, AmirKabir University of Technology, Tehran, Iran, Aerospace Engineering. Research Fields CFD (Computational Fluid Dynamics), Aerodynamics, Renewable energy, Marine Energy, Fluid mechanics and Heat Transfer Research Interests Data Mining Machine Learning, Artificial Intelligence FV Compressible flows, Incompressible Flows. FSI Moving Meshes, Overset Grids, Morphing. Parallel MPI, OpenMP, GPU and Cloud Computing. Processing Convergence FAS Multigrid, AGMG, Implicit, AF and ADI. Turbulence RANS, LES and VMS Grid Unstructured/Structured, AMR, Quad Paving. Generation FE Heat Transfer, Incompressible Flows. High Order DG, Spectral Methods, WENO. Multiphase Gas particle, VOF, LPT Flows Meshless SPH, LBM, LPT 1/8 Reduced POD and Certified Reduced Basis Order Modeling Vocational history 2013–Present Senior Research Fellow, BCAM-Basque Center for Applied Mathematics, Bilbao- Spain, CFD Research Line. I am mainly working on three projects: { BCAM-BALTOGAR CFD Platform for Turbomachinery Simulation and Design (Main Developer) { FRACTAL: Laser-feeder coating system design and optimization (BCAM PI) { LOINTEK: Numerical simulation of heat exchangers (BCAM PI) More details of my present and accomplished tasks: { BBIPED open source code (BECAM BALTOGAR CFD Platform) - Extension of SU2 code for the MultiZone Rotating Reference Frame (Standard MRF and a new approach called VMRF). - Introducing a new highly customizable library based on Event-Driven Programming approach. - Adding some new boundary conditions using the new customizable library. - Enhancing the based code (SU2) in parallel processing and IO. - Publishing one journal paper and two conference papers. - (Current)Maintaining the code. { A new class of DG/FV scheme for high order computation in 2D and 3D. - Prepared one journal paper and published two conference papers. { (Current) Main executer of an industrial project, Numerical simulation of a new emerging technology for fast laser cladding. - Simulation of the gas-particle flow by Eulerian-Lagrangian multiphase approach using BBIPED, code_saturne and OpenFOAM. - Proposing a new design for the nozzle and demonstrate the impact. - Implementation of Lagrangian Particle Tracking technique with Discrete Random Walk. - Proposing some new changes in the geometry to improve the performance. - Presenting latest results in the Math-In conference { (Current) Main executer of an industrial project, Numerical simulation of heat exchangers. - Numerical simulation of new design of heat exchangers to assess pressure drop and heat transfer performance. { Numerical justification for the bi-normal equation for vortex filaments by a close to DNS real flow simulation. { Application of BBIPED for evaluation of Wells turbine performance in steady (presented in a conference) and unsteady cases. { Simulation of an industrial valve using OpenFOAM verified by experimental data. 2/8 2012–2013 Research Fellow, Gyeongsang National University, Jinju-South Korea, Aerospace Engineering Department. I collaborated in a project entitled Offshore Floating Wind Turbine. I participated in Aerodynamics, Dynamic analysis and wave diffraction/refraction parts. { Aerodynamics: - Extending my in-house code for: · Low Mach flows using AUSM+up and Turkel local preconditioning, Steady and Unsteady. · Multiple Rotating reference frames using absolute/relative formulation. · Application of Overset Grids for simulation of a floating wind turbine. - Commercial Softwares: Ansys CFX and Fluent { Dynamic analysis: Preliminary usage of FAST code. { Wave Diffraction/Refraction: Time/Frequency domain solution of different platforms for offshore wind-turbine using Ansys AQWA. 2010–2012 Adjunct Assistant Professor , Khaje Nasir Toosi, Tehran-Iran, Aerospace Engi- neering Department. I have taught following courses in 3 semesters. I was second advisor of a MS student. Detailed achievements: { Undergraduate: Fluid Mechanics (3 Sem.), Heat Transfer (2 Sem.), Numerical Analysis (1 Sem.). { Graduate: Advanced Numerical Analysis, CFD-I, Subsonic Aerodynamics. { Student: MS student who worked on High order simulation of inviscid flows by ENO scheme. 3/8 2009–2012 Research Fellow, Sharif University of Technology, Tehran, Iran, Aerospace Engi- neering Department. I am the developer of all parts (scientific core and GUI) of the following softwares. Detailed achievements: { NEJAT/IRCFD/AHPC Softwares: - Physics: Steady/Unsteady, Inviscid/Laminar/Turbulent, 2D/Axi/3D compressible ideal/real gas flows. - Solver: Structured/Unstructured/Hybrid, Cell-Vertex/Cell-Center, Multi-Block with Non-matched interfaces (conservative data exchange) /Explicit/Implicit/FAS Multigrid, Serial/Parallel(MPI, OpenMP), Roe/AUSM+/Vanleer... ,Spallart Allmaras/k- RANS models, Standard Wall Functions, Dual Time Stepping, Block GS/Krylov Family/ILU Preconditioners/Matrix Free. - Overset Grid: Efficient and fast Hole-Cutting and k-d tree searching scheme, Interpo- lation by least square scheme. - Moving Boundary: Using overset grids for large motions, Spring Analogy with ALE, My Delaunay Based scheme. - GUI: C# .Net,C++ .NET and OpenGL for IRCFD and NEJAT. Wxwidgets + VTK for mesh viewer + A scenario based post-processing by VTK + scripting by Lua for input file, solution control and post-processing for AHPC. - Optional Third Parties: SPARSKIT, Metis, Zoltan, ParMGridGen. { FEHeat Software: - Physics: Steady/Unsteady, 2D/3D Heat Transfer, Large deforming domains. - Solver: Finite Element, Triangle/Tetrahedron elements, Galerkin , ALE for deforming elements, Krylov Family/ILU Preconditioners. - Moving Boundary: 2D/3D Semi-torsional algorithm by FE, A new semi level-set algorithm, A new surface mesh smoothing. - GUI: Wxwidgets + OpenGL. - Optional Third Parties: SPARSKIT { AeroGrid Software: - 2D/3D, unstructured Delaunay grid generation. - 2D/3D, structured grid generation, Algebraic/PDE, Boundary orthogonality, Multi- Block. - 2D unstructured quad grid generation by a semi-direct paving scheme. - 3D-Surface structured/unstructured grid generation by conformal mapping. - GUI: Wxwidgets + VL (Visualization Toolkit)+ Lua for scripting. - Optional Third Parties: Triangle, Tetgen. PhD thesis title Some innovations in numerical simulation of inviscid three dimensional flow with moving boundaries. supervisors Prof. Karim Mazaheri achivements: { A general and new large amplitude moving mesh scheme has been introduced and some cases in unsteady 2D/3D compressible flows were simulated by it. { A new agglomeration technique for FAS multigrid in conjunction with implicit time stepping. { A new renumbering scheme on unstructured grids is proposed to utilize Approximate Factorization in implicit schemes. 4/8 { Some dynamic load balancing scheme have been modified for the moving mesh scheme in parallel processing runs. { Some new techniques for robust node deletion in 3D volume meshes introduced to be used in the moving mesh scheme. { Some new and fast techniques for searching in 2D/3D unstructured grids have been proposed. { The Delaunay 3D unstructured grid generator has been implemented for the moving mesh scheme. MS thesis title Numerical simulation of Euler equations with moving boundaries on 2D adaptive unstructured grids. supervisors Prof. Karim Mazaheri achivements: { 2D inviscid unsteady compressible flow solution on unstructured grids. { 2D unstructured grid generation with Delaunay preserving by Bowyer-Watson and Edge Swapping schemes. { Some schemes for 2D moving meshes in small and large amplitude. { Adaptive solution by mesh refinement and mesh movements. BS thesis title A survey of computational grid generation methods. supervisors Prof. Kamyar Mansour achivements: { A GUI for 2D unstructured grid generation for EasyMesh code. { A GUI for 3D surface modeling and meshing (structured grid) using Bezier splines. { Detail review of several computational grid generation schemes. Publications Journal papers: 1. L. Remaki, A. Ramezani,J.M. Blanco,I. Garcia,New Simplified Algorithm for the Multiple Rotating Frame Approach in CFD, Journal of Fluids Engineering, ASME,2016. 2. Soheil Sharif Zadeh, Mani Fathali, Ali Ramezani. Qualitative study of interaction between the shock wave and two-dimensional turbulence flow by using ENO numerical method. Modares Mechanical Engineering Journal. Volume 13, Issue 14, Page 171-184, 2014. 3. Javad Rahman Nejad; Ali Ramezani; M Kalate. Numerical Investigation of Magnetic Field Effects on Mixed Convection Flow in a Nanofluid-filled Lid-driven Cavity. International Journal of Engineering. Vol. 26, No. 10, 2013. 4. Ramezani Ali, Mazaheri Karim,Multigrid Convergence Acceleration for Implicit and Explicit So- lution of Euler Equations on Unstructured Grids, International Journal for Numerical Methods in Fluids, interscience wiley publication, Vol. 62 Issue 9, 2009. 5. Mazaheri Karim, Ramezani Ali, Implicit Solution of Inviscid flows on an unstructured mesh for bodies in large relative motion using a new grid movement scheme, International Journal of 5/8 Progress