Publications

O. Al-Khayat and H. P. Langtangen. Computational aspects of multiscale simulation with the lumped particle framework, Communications in Computational Physics 12(4):1257-1274, 2012.

J. B. Haga, H. P. Langtangen, and H. Osnes. A parallel block preconditioner for large scale poroelasticity with highly heterogeneous material parameters, Computational Geosciences(online), 2012.

H. P. Langtangen. A FEniCS tutorial, In: Automated Solution of Differential Equations by the Finite Element Method, ed. by A. Logg, K.-A. Mardal and G. Wells. Springer, chap. 1, pp. 1-70, 2012.

M. Mortensen, Kent-A. Mardal, and H. P. Langtangen. Simulation of transitional flows, In: Automated Solution of Differential Equations by the Finite Element Method, ed. by A. Logg, K.-A. Mardal and G. Wells. Springer, vol. 84, chap. 22, pp. 419-438. Lecture Notes in Computational Science and Engineering,, 2012.

H. P. Langtangen, Kent-A. Mardal, and P. Røtnes. Escaping the Zombie Threat by Mathematics, Preprint, 2012.

H. P. Langtangen. A Primer on Scientific Programming with Python, Springer (second edition), 2011.

O. Al-Khayat, A. M. Bruaset, and H. P. Langtangen. Particle collisions in a lumped particle model , Communications in Computational Physics 10(4):823-843, 2011.

J. B. Haga, H. Osnes, and H. P. Langtangen. On the causes of pressure oscillations in low-permeable and low-compressible porous media, International Journal for Numerical and Analytical Methods in Geomechanics(online), 2011.

J. B. Haga, H. Osnes, and H. P. Langtangen. Efficient block preconditioners for the coupled equations of pressure and deformation in highly discontinuous media, International Journal for Numerical and Analytical Methods in Geomechanics 35(13):1466-1482, 2011.

S. Linge, V. Haughton, A. E. Løvgren, Kent-A. Mardal, A. Helgeland, and H. P. Langtangen. Effect of tonsilar herniation on cyclic CSF flow studied with computational flow analysis, American Journal of Neuroradiology 32(5):1474-1481, 2011.

M. T. Sletholt, J. E. Hannay, D. Pfahl, and H. P. Langtangen. What do We Know About Agile Practices in Scientific Software Development?, Accepted for publication in Computing in Science and Engineering, 2011.

K. Valen-Sendstad, Kent-A. Mardal, M. Mortensen, B. A. P. Reif, and H. P. Langtangen. Direct Numerical Simulation of Transitional Flow in a Patient–Specific Intracranial Aneurysm, Journal of Biomechanics 44(16):2826-2832, 2011.

M. T. Sletholt, J. E. Hannay, D. Pfahl, H. C. Benestad, and H. P. Langtangen. A Literature Review of Agile Practices and Their Effects in Scientific Software Development, In: Proceedings of SE-CSE11, ed. by J. Carver, 2011.

K. Valen-Sendstad, Kent-A. Mardal, M. Mortensen, B. A. P. Reif, and H. P. Langtangen. On The Complexity of Stationary Flow in Patient–Specific Aneurysms, In: MekIT'11 Sixth national conference on Computational Mechanics, ed. by Bjørn Skallerud and Helge I. Andersson, pp. 379-392, tapir academic press, 2011.

K. Valen-Sendstad, Kent-A. Mardal, M. Mortensen, B. A. P. Reif, and H. P. Langtangen. Direct Numerical Simulation of Transitional Flow in a Patient-Specific MCA Aneurysm, In: Proceedings of the ASME 2011 Summer Bioengineering Conference, ed. by , , 2011.

K. Valen-Sendstad, M. Mortensen, Kent-A. Mardal, B. A. P. Reif, and H. P. Langtangen. Investigations of Transistional flows using image based hemodynamics, In: 8th International Conference on CFD in Oil & Gas, Metallurgical and Process Industries, ed. by , , 2011.

H. P. Langtangen. Kaos i hjernen - ny innsikt gjennom simuleringer, University of Oslo 1-day seminar: Realister invaderer helsevesenet, 2011.

H. P. Langtangen. Abnormal flows in the brain and the spine: How to better understand diseases by computations, Talk at the Computational Life Science seminar, University of Oslo, 2011.

H. P. Langtangen. Kaos i hjernen - ny innsikt gjennom simuleringer, Talk at Fysikkforeningen, 2011.

K. Valen-Sendstad, Kent-A. Mardal, M. Mortensen, H. P. Langtangen, B. A. P. Reif, and D. A. Steinman. 'Turbulence' in Cerebral Aneurysms, CBC Workshop on Biomechanics, 17-18 November, 2011.

K. Valen-Sendstad, Kent-A. Mardal, M. Mortensen, B. A. P. Reif, and H. P. Langtangen. Why blood flow in the vicinity of aneurysms is difficult to compute, Talk at CBC Workshop on CBC Key Topics, 2011.

K. Valen-Sendstad, Kent-A. Mardal, M. Mortensen, B. A. P. Reif, and H. P. Langtangen. Computational Cerebral Hemodynamics, The Norwegian Defence Research Establishment, 2011.

K. Valen-Sendstad, Kent-A. Mardal, M. Mortensen, B. A. P. Reif, and H. P. Langtangen. Simulation Methodology for Cerebral Blood Flow, Biomedical Simulation Lab, Institute of Biomaterials and Biomedical Engineering at the University of Toronto , 2011.

K. Valen-Sendstad, Kent-A. Mardal, M. Mortensen, B. A. P. Reif, and H. P. Langtangen. Direct Numerical Simulation of Transitional Flow in Patient–Specific Intracranial Aneurysms, ASME 2011 Summer Bioengineering Conference, 2011.

Kent-A. Mardal, A. Logg, H. P. Langtangen, and G. Wells. FEniCS: An Attempt to Combine Simplicity, Generality, Efficiency and Reliability, Python-based Software for Solving Partial Differential Equations Minisymposium at SIAM Conference on Computational Science and Engineering, 2011.

Kent-A. Mardal, Karen-H. Støverud, V. Haughton, S. Linge, H. P. Langtangen, G. Rutkowska, and I. N. Drøsdal. Cerebrospinal fluid flow in the upper cervical canal in patients with the Chiari I malformation, 1ST CSF Hydrodynamics Symposium, 2011.

Kent-A. Mardal, K. Valen-Sendstad, M. S. Alnæs, M. Mortensen, H. P. Langtangen, and B. A. P. Reif. The finite element library FEniCS and simulation of blood flow in cerebral aneurysms, Talk at CSB Seminar, University of Stuttgart, 2011.

A. Tveito, H. P. Langtangen, B. F. Nielsen, and X. Cai. Elements of Scientific Computing, Springer, 2010.

O. Al-Khayat, A. M. Bruaset, and H. P. Langtangen. A lumped particle modeling framework for simulating particle transport in fluids , Communications in Computational Physics 8(1):115-142, 2010.

J. K. Nilsen, X. Cai, B. Høyland, and H. P. Langtangen. Simplifying the parallelization of scientific codes by a function-centric approach in Python, Computational Science & Discovery 3(0):015003, 2010.

S. Glimsdal, G. Pedersen, H. P. Langtangen, V. Shuvalov, and H. Dypvik. The Mjølnir Tsunami, In: The Mjølnir Impact Event and its Consequences, ed. by Tsikalas, Filippos and Dypvik, Henning and Smelror, Morten. Springer Berlin Heidelberg, chap. 10, pp. 257-271, 2010.

H. P. Langtangen. A FEniCS Tutorial, In: Automated Scientific Computing, ed. by Anders Logg and Kent-Andre Mardal and Garth N. Wells. Springer, chap. 1, pp. , 2010.

J. T.-C. Yeh, X. Cai, H. P. Langtangen, J. Zhu, and Chuen-F. Ni. Parallel computing engines for subsurface imaging technologies, In: Advanced Computational Infrastructures for Parallel and Distributed Adaptive Applications, ed. by M. Parashar, X. Li. John Wiley & Sons, Inc., Hoboken, New Jersey, chap. 3, pp. 29-43. Wiley Series of Parallel and Distributed Computing, 2010.

M. T. Sletholt, J. E. Hannay, H. P. Langtangen, and D. Pfahl. Making Modern Scientific Software Development Explicitly Agile, In: The Changing Dynamics of Scientific Collaborations, 2010.

Karen-H. Støverud, Kent-A. Mardal, V. Haughton, and H. P. Langtangen. CSF Flow in Chiari I and Syringomyelia - From the Perspective of Fluid dynamics, In: Proceedings of the XIX Symposium Neuroradiologicum, Bologna, Italy, ed. by , vol. ( ), , 2010.

H. P. Langtangen. Computational Modeling of Huge Tsunamis From Asteroid Impacts, Computational Geoscience seminar, 2010.

Kent-A. Mardal, H. P. Langtangen, and P. Røtnes. Is zombies a threat to mankind?, Talk presented at FEniCS 2010 , 2010.

Karen-H. Støverud, Kent-A. Mardal, and H. P. Langtangen. From a Physical Problem to Computer Simulations, CBC Workshop on Cerebrospinal Fluid Flow in the Brain and Spinal Canal - Clinical, Experimental and Mathematical Models and Problems, Simula, May 28, 2010.

Karen-H. Støverud, Kent-A. Mardal, V. Haughton, and H. P. Langtangen. Cerebrospinal Fluid (CSF) - Oscillating Flow and Pressure, CBC Workshop on Aerosols: Dispersion, Transport and Effects, Simula, November 10, 2010.

Karen-H. Støverud, Kent-A. Mardal, V. Haughton, and H. P. Langtangen. Cerebrospinal Fluid (CSF) - Oscillating Flow and Pressure, Selected Topics Seminar IWS Stuttgart, 2010.

Karen-H. Støverud, Kent-A. Mardal, V. Haughton, and H. P. Langtangen. CSF Hydrodynamic in Patients With Syringomyelia and Chiari I Malformations, Annual NUPUS meeting in Freudenstadt, 2010.

H. P. Langtangen. A Primer on Scientific Programming with Python, Springer, 2009.

M. S. Alnæs, A. Logg, Kent-A. Mardal, O. Skavhaug, and H. P. Langtangen. Unified Framework for Finite Element Assembly, International Journal of Computational Science and Engineering 4(4):231-244, 2009.

S. Linge, V. Haughton, A. E. Løvgren, Kent-A. Mardal, and H. P. Langtangen. CSF flow dynamics at the cranio-vertebral junction studied with an idealized model of the subarachnoid space and computational flow analysis, American Journal of Neuroradiology 31(1):185-192, 2009.

J. B. Haga, H. P. Langtangen, B. F. Nielsen, and H. Osnes. On the performance of an algebraic multigrid preconditioner for the pressure equation with highly discontinuous media, In: Proceedings of MekIT'09, ed. by B. Skallerud and H. I. Andersson, pp. 191-204, NTNU, Tapir, 2009.

J. E. Hannay, H. P. Langtangen, C. MacLeod, D. Pfahl, J. Singer, and G. Wilson. How Do Scientists Develop and Use Scientific Software?, In: Software Engineering for Computational Science and Engineering , ed. by Jeff Carver, pp. 1-8, IEEE Computer Society, 2009.

S. Linge, A. E. Løvgren, Kent-A. Mardal, V. Haughton, and H. P. Langtangen. Effect of Tonsilar Position on Cerebrospinal Fluid Flow in the Spinal Subarachnoid Space Studied with Computational Fluid Dynamics, In: Proceedings of the ASNR 47th annual meeting, May 16-21, Vancouver, BC, Canada, ed. by , , 2009.

K. Valen-Sendstad, M. Mortensen, H. P. Langtangen, B. A. Pettersson Reif, and Kent-A. Mardal. Implementing a k-e Turbulence Model in the FEniCS Finite Element Programming Environment, In: MekIT'09, ed. by Bjørn Skallerud and Helge Andersson, Tapir, 2009.

I. Wilbers, H. P. Langtangen, and Å. Ødegård. Using Cython to Speed up Numerical Python Programs, In: Proceedings of MekIT'09, ed. by B. Skallerud and H. I. Andersson, pp. 495-512, NTNU, Tapir, 2009.

H. P. Langtangen and O. Lysne. The Hamming Experience, In: Simula Research Laboratory — by thinking constantly about it, ed. by Aslak Tveito and Are Magnus Bruaset and Olav Lysne. Springer, chap. 5, pp. 33-36, 2009.