Prof. Hrvoje Jasak

Prof. dr. sc. Hrvoje Jasak, dipl. ing. (FSB Zagreb) Ph.D. (Imperial College) DIC Associate Professor, Chair of Turbo-machinery Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Croatia Visiting professor, Fluid Mechanics Group, University of Zaragoza Spain, 2007 Visiting professor, Federico Santa Maria Technical University Valparaiso, Chile, 2005 Graduate of University of Zagreb, Croatia, 1988-1992. Ph.D. Imperial College, University of London, 1993-1996.

Contact Details

Research Interests

Physical modelling

• Fluid-structure interaction in a single software implementation
• Heat and mass transfer in drying of cement-bonded castables
• Free surface flows: ship tank sloshing, droplet-wall interaction
• Non-linear stress analysis using the Finite Volume Method
• Polar ice dynamics
• Large-Eddy Simulation and Reynolds-averaged turbulence models
• Complex heat and mass transfer systems: Biscuit baking model

Numerics and the FVM Discretisation

• Convection discretisation in the Finite Volume Method
• Bounded and accurate FVM discretisation
• Finite Area Method: 2-D FVM on a curved deforming surface
• A-posteriori error estimation in FVM: Residual error estimate
• Dynamic Mesh Handling, Automatic Mesh Generation, Motion and Topological Changes
• In-cylinder flow simulation for internal combustion engines
• Automatic mesh motion and dynamic mesh changes
• Automatic polyhedral mesh generation
• Error-driven mesh adaptivity

Linear equation solver technology

• Iterative solvers: Conjugate Gradient and Algebraic Multigrid
• Direct multi-frontal solvers, block solvers
• Segregation, matrix-free and block solution

Computer Science

• Object orientation and generic programming in C++
• Use of object-oriented programming paradigm in high performance computing applications

Running Projects and Collaboration

Teaching

Fluid Mechanics, Heat Transfer, Computational Thermo-fluids;
Object Orientation and C++ Programming Language in Scientific Computing;

Teaching Projects

Recent Publications

Currently Submitted and In Preparation

1. Jemcov, A.; Maruszewski, J.P.; Jasak, H.: Acceleration and Stabilization of Algebraic Multigrid Solver Applied to Incompressible Flow Problems, 18th AIAA Computational Fluid Dynamics Conference, 25-28 Jun 2007

Published Journal Papers

1. Jasak, H. and Tukovic, Z.: Automatic Mesh Motion for the Unstructured Finite Volume Method, Transactions of FAMENA, v30 n 2, 2007
2. Hutchings, J.K.; Jasak, H. and Laxon, S.: Strength implicit correction scheme for the viscous-plastic sea ice model, Ocean Modelling, 2004, v 7, pp 111-133
3. Jasak, H. and Gosman, A.D.: Element Residual Error Estimate for the Finite Volume Method, Computers and Fluids, 2002, v 32, pp 223-248
4. Jasak, H. and Gosman, A.D.: Residual error estimate for the Finite Volume Method, Numerical Heat Transfer, Part B: Fundamentals, 2001, v 39 pp 1-19
5. Jasak, H. and Gosman, A.D.: Automatic resolution control for the Finite Volume Method. Part 1: A-posteriori error estimates, Numerical Heat Transfer, Part B: Fundamentals, 2000 v 38 n 3 pp 237-256
6. Jasak, H. and Gosman, A.D.: Automatic resolution control for the Finite Volume Method. Part 2: Adaptive mesh refinement, Numerical Heat Transfer, Part B: Fundamentals, 2000 v 38 n 3 pp 257-272
7. Jasak, H. and Gosman, A.D.: Automatic resolution control for the Finite Volume Method. Part 3: Turbulent flow applications, Numerical Heat Transfer, Part B: Fundamentals, 2000 v 38 n 3 pp 273-290
8. Jasak, H. and Weller, H.G.: Application of the Finite Volume Method and Unstructured Meshes to Linear Elasticity, Int. J. Num. Meth. Engineering 2000, v 48, n 2, pp 267-287
9. Jasak, H.; Weller, H.G. and Gosman, A.D.: High resolution NVD differencing scheme for arbitrarily unstructured meshes, Int. J. Numer. Meth. Fluids, 1999, v31, pp 431-449
10. Weller, H.G.; Tabor G.; Jasak, H. and Fureby, C.: A Tensorial Approach to CFD using Object Oriented Techniques, Computers in Physics, 1998 v 12 n 6, pp 620 - 631

Conference Papers

1. Jasak, H.; Jemcov, A.; Maruszewski, J.P.: Preconditioned Linear Solvers for Large Eddy Simulation, CFD 2007 Conference, CFD Society of Canada
2. Jemcov, A.; Maruszewski, J.P.; Jasak, H.: Performance Improvement of Algebraic Multigrid Solver by Vector Sequence Extrapolation, CFD 2007 Conference, CFD Society of Canada
3. Lucchini, T.; D'Errico, G.; Jasak, H.; Tukovic, Z.: Automatic mesh motion with topological changes for engine simulation, SAE Technical Paper 2007-01-0170, 2007
4. Jemcov, A.; Maruszewski, J.P.; Jasak, H.: Stabilization of Agglomerative Algebraic Multigrid Solver by Recursive Projection Method, 13th Copper Mountain Conference on Multigrid Methods, 2007
5. Jasak, H. Multi-Physics Simulations in Continuum Mechanics Proceedings of 5th International Conference of Croatian Society of Mechanics, Trogir 2006.
6. Jasak, H. and Tukovic, Z.: Automatic Mesh Motion for the Unstructured Finite Volume Method. Submitted to Journal of Computational Physics, Feb/2004
7. Jasak, H.; Weller, H.G and Nordin, N.: In-Cylinder CFD Simulation Using a C++ Object-Oriented Toolkit, Paper number 2004-01-0110, SAE World Congress, Detroit, 2004. The paper describes some parts of the FOAM design and includes example internal combustion engine simulations using FOAM.
8. Ivankovic, A.; Tropsa, V.; Jasak, H.; Leevers, P.S.: Fully Predictive Model of RCP in Plastic Pipes, Proceedings of the 14th Biennial Conference on Fracture - ECF14, vol 2, Cracow, Poland 8-13 September 2002. Under the Auspices of the European Structural Integrity Society and American Society for Testing and Materials
9. Ivankovic, A.; Jasak, H.; Karac, A. and Tropsa, V.: Prediction of dynamic fracture in pressurised plastic pipes, The 10th Annual Conference of the Association of Computational Mechanics in Engineering, University of Wales Swansea, Faculty of Engineering 2002, pp 173-176. Editors: Bonet, J.; Ransing, R. and Slijepcevic, S.
10. Jasak, H. and Weller, H.G.: Finite volume methodology for contact problems of linear elastic solids, Proceedings of 3rd International Conference of Croatian Society of Mechanics, Cavtat/Dubrovnik, September 2000
11. Hutchings, J.K.; Jasak, H. and Laxon, S.: A finite volume viscous-plastic sea ice model, Presented at European Geophysical Society XXV General Assembly and Geophysical Research Abstracts. Part II: Hydrology, Oceans & Atmosphere, http://134.76.234.216/ScientificProgramme/overview.htm. April 2000
12. Hutchings, J.K.; Jasak, H. and Laxon, S.: An ice strength implicit successive correction scheme for the viscous-plastic sea ice model, Presented at European Geophysical Society XXV General Assembly and Geophysical Research Abstracts. Part II: Hydrology, Oceans & Atmosphere, http://134.76.234.216/ScientificProgramme/overview.htm. April 2000
13. Gosman, A.D.; Ghobadian, A.; Jasak, H.; Kaludjercic, B. and Lee, F.: Prediction of engine and furnace combustion using advanced CFD and computing methodology, Proceedings of the Asia-Pacific Conference on Combustion, Taiwan 1999
14. Jasak, H.; Luo, J.Y.; Kaludjercic, B.; Gosman, A.D.; Echtle, H. Liang, Z.; Wirbeleit, F.; Wierse, M.; Rips, S.; Werner, A.; Fernstrom, G. and Karlsson, A.: Rapid CFD simulation of internal combustion engines, SAE World Congress, Detroit, 1999

Recent Invited Talks

1. High Performance CFD Simulations with OpenFOAM. A one-day seminar in organisation of the Finnish IT Centre for Science (CSC) in Helsinki, Finland on 4th April 2007.
2. A talk on the adoption of CFD in the automotive industry at the TMS Conference Integrated Computational Materials Engineering: Lessons from Many Fields in Orlando, Florida, 28/Feb/2007.
3. Presentation at Politecnico di Milano on 15/Feb/2007 on OpenFOAM in internal combustion engines simulations.
4. A presentation on OpenFOAM at the University of Manchester on 7/Feb/2007.
5. OpenFOAM at SIMDI 06. Introductory Workshop on OpenFOAM, Simulation and Data Intensive Fair 2006 (SIMDI 06), 17-18 of October 2006 organised by Wikki Ltd. and Gridcore AB
6. Keynote lecture on Multi-Physics Simulations in Continuum Mechanics 5th International Conference of Croatian Society of Mechanics, Trogir, Croatia Sep/2006
7. A presentation on OpenFOAM in engine simulations at the Engine Research Center (ERC) at the University of Wisconsin-Madison on Friday 18/Nov/2005. On invitation of Professor Chris Rutland, director of ERC the subject of the talk is the OpenFOAM design and capabilities, with examples of simulations relevant to in-cylinder internal combustion simulations.
8. A series of lectures on CFD and the Finite Volume Method at the Federico Santa Maria Technical University in Valparaiso, Chile to the students at the Mechanical Engineering Department and other interested parties in October 2005. As a part of the visit, a collaboration on simulations of free surface flows and use of OpenFOAM has been initiated.
9. Presentation at the National Energy Technology Laboratory (NETL) of the US Department of Energy in Morgantown, West Virginia on 15/Apr/2005, covering OpenFOAM architecture and multi-phase flow modelling.
10. Presentation on free surface modelling in OpenFOAM at the University of Massachusetts Amherst (UMASS) 7/Apr/2005, in collaboration with prof. David Schmidt of the Mechanical and Industrial Engineering Department.
11. Invited departmental seminar at the Applied Mathematics Department, University of Sheffield 22/Mar/2005. Invited talk on handling of complex physics models in software through object orientation and generic programming in OpenFOAM.
12. Invited departmental seminar on CFD in an object oriented framework, modelling of free surface flow and solid-fluid interaction in OpenFOAM, BAE Systems Advanced Technology Centre, Filton, Bristol UK, 10/Mar/2005
13. Two talks on numerical modelling of free surface flows at the Technical University Darmstadt, 11-12/Jan/2005.
14. Lecture on object-orientation in numerics for Continuum Mechanics, Department of Mathematics, Faculty of Science (PMF), University of Zagreb, Croatia, 7/Jun/2004, in organisation of Dr Josip Tambaca.
15. Invited talk at the Croatian Society of Mechanics, 20/Nov/2003, Zagreb, Croatia.

Miscellaneous Publications

1. Jasak, H.: Error analysis and estimation for the Finite Volume method with applications to fluid flows, PhD. Thesis, Imperial College, University of London, 1996
2. Jasak, H. and Weller, H.G.: Interface-tracking capabilities of the InterGamma differencing scheme. Internal Report, CFD research group, Imperial College, London, 1995

Any comments and suggestions on my research are more than welcome.

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