## Contact

**KTH Royal Institute of Technology**

*SE-100 44 Stockholm Sweden +46 8 790 60 00*

[1]

J. Kronborg and J. Hoffman, "The triple decomposition of the velocity gradient tensor as a standardized real Schur form," *Physics of fluids*, vol. 35, no. 3, 2023.

[2]

M. Balmus *et al.*, "A stabilized multidomain partition of unity approach to solving incompressible viscous flow," *Computer Methods in Applied Mechanics and Engineering*, vol. 392, 2022.

[3]

J. Kronborg *et al.*, "Computational Analysis of Flow Structures in Turbulent Ventricular Blood Flow Associated With Mitral Valve Intervention," *Frontiers in Physiology*, vol. 13, 2022.

[4]

J. T. Koivumäki *et al.*, "Computational cardiac physiology for new modelers : Origins, foundations, and future," *Acta Physiologica*, vol. 236, no. 2, 2022.

[5]

J. Spühler and J. Hoffman, "An interface-tracking unified continuum model for fluid-structure interaction with topology change and full-friction contact with application to aortic valves," *International Journal for Numerical Methods in Engineering*, vol. 122, no. 19, pp. 5258-5278, 2021.

[6]

J. Hoffman, "Energy stability analysis of turbulent incompressible flow based on the triple decomposition of the velocity gradient tensor," *Physics of fluids*, vol. 33, no. 8, 2021.

[7]

M. Balmus *et al.*, "A partition of unity approach to fluid mechanics and fluid-structure interaction," *Computer Methods in Applied Mechanics and Engineering*, vol. 362, 2020.

[8]

J. Hoffman, "High shear stress amplitude in combination with prolonged stimulus duration determine induction of osteoclast formation by hematopoietic progenitor cells," *The FASEB Journal*, vol. 34, no. 2, pp. 3755-3772, 2020.

[9]

Van D. Nguyen *et al.*, "Diffusion MRI simulation in thin-layer and thin-tube media using a discretization on manifolds," *Journal of magnetic resonance*, vol. 299, pp. 176-187, 2019.

[10]

Van D. Nguyen *et al.*, "Direct Finite Element Simulation of the Turbulent Flow Past a Vertical Axis Wind Turbine," *Renewable energy*, vol. 135, pp. 238-247, 2019.

[11]

F. Wendt *et al.*, "Ocean Energy Systems Wave Energy Modelling Task : Modelling, Verification and Validation of Wave Energy Converters," *Journal of Marine Science and Engineering*, vol. 7, no. 11, 2019.

[12]

Van D. Nguyen *et al.*, "Portable simulation framework for diffusion MRI," *Journal of magnetic resonance*, vol. 309, 2019.

[13]

J. H. Spühler *et al.*, "3D Fluid-Structure Interaction Simulation of Aortic Valves Using a Unified Continuum ALE FEM Model," *Frontiers in Physiology*, vol. 9, 2018.

[14]

Van D. Nguyen *et al.*, "A partition of unity finite element method for computational diffusion MRI," *Journal of Computational Physics*, vol. 375, pp. 271-290, 2018.

[15]

J. Jansson, N. C. Degirmenci and J. Hoffman, "Adaptive unified continuum FEM modeling of a 3D FSI benchmark problem," *International Journal for Numerical Methods in Biomedical Engineering*, vol. 33, no. 9, 2017.

[16]

D. Larsson *et al.*, "Patient-Specific Left Ventricular Flow Simulations From Transthoracic Echocardiography : Robustness Evaluation and Validation Against Ultrasound Doppler and Magnetic Resonance Imaging," *IEEE Transactions on Medical Imaging*, vol. 36, no. 11, pp. 2261-2275, 2017.

[17]

R. Vilela de Abreu, N. Jansson and J. Hoffman, "Computation of aeroacoustic sources for a Gulfstream G550 nose landing gear model using adaptive FEM," *Computers & Fluids*, vol. 124, pp. 136-146, 2016.

[18]

J. Hoffman, J. Jansson and C. Johnson, "New Theory of Flight," *Journal of Mathematical Fluid Mechanics*, vol. 18, no. 2, pp. 219-241, 2016.

[19]

J. Hoffman *et al.*, "Towards a parameter-free method for high Reynolds number turbulent flow simulation based on adaptive finite element approximation," *Computer Methods in Applied Mechanics and Engineering*, vol. 288, pp. 60-74, 2015.

[20]

R. Vilela de Abreu, N. Jansson and J. Hoffman, "Adaptive Computation of Aeroacoustic Sources for a Rudimentary Landing Gear," *International Journal for Numerical Methods in Fluids*, vol. 74, no. 6, pp. 406-421, 2014.

[21]

J. Jansson, N. C. Degirmenci and J. Hoffman, "Framework for adaptive fluid-structure interaction with industrial applications," *International Journal of Materials Engineering Innovation*, vol. 4, no. 2, pp. 166-186, 2013.

[22]

M. Nazarov and J. Hoffman, "Residual-based artificial viscosity for simulation of turbulent compressible flow using adaptive finite element methods," *International Journal for Numerical Methods in Fluids*, vol. 71, no. 3, pp. 339-357, 2013.

[23]

J. Hoffman *et al.*, "Unicorn : Parallel adaptive finite element simulation of turbulent flow and fluid-structure interaction for deforming domains and complex geometry," *Computers & Fluids*, vol. 80, no. SI, pp. 310-319, 2013.

[24]

N. Jansson, J. Hoffman and J. Jansson, "Framework For Massively Parallel Adaptive Finite Element Computational Fluid Dynamics On Tetrahedral Meshes," *SIAM Journal on Scientific Computing*, vol. 34, no. 1, pp. C24-C42, 2012.

[25]

M. Nazarov and J. Hoffman, "On the stability of the dual problem for high Reynolds number flow past a circular cylinder in two dimensions," *SIAM Journal on Scientific Computing*, vol. 34, no. 4, pp. A1905-A1924, 2012.

[26]

J. Hoffman, J. Jansson and R. V. De Abreu, "Adaptive modeling of turbulent flow with residual based turbulent kinetic energy dissipation," *Computer Methods in Applied Mechanics and Engineering*, vol. 200, no. 37-40, pp. 2758-2767, 2011.

[27]

J. Hoffman, J. Jansson and M. Stöckli, "Unified Continuum modeling of fluid-structure interaction," *Mathematical Models and Methods in Applied Sciences*, vol. 21, no. 3, pp. 491-513, 2011.

[28]

G. Compere *et al.*, "A mesh adaptation framework for dealing with large deforming meshes," *International Journal for Numerical Methods in Engineering*, vol. 82, no. 7, pp. 843-867, 2010.

[29]

M. Nazarov and J. Hoffman, "An adaptive finite element method for inviscid compressible flow," *International Journal for Numerical Methods in Fluids*, vol. 64, no. 10-12, pp. 1102-1128, 2010.

[30]

J. Hoffman and C. Johnson, "Resolution of d'Alembert's Paradox," *Journal of Mathematical Fluid Mechanics*, vol. 12, no. 3, pp. 321-334, 2010.

[31]

J. Hoffman, "Efficient computation of mean drag for the subcritical flow past a circular cylinder using general Galerkin G2," *International Journal for Numerical Methods in Fluids*, vol. 59, no. 11, pp. 1241-1258, 2009.

[32]

[33]

J. Hoffman and C. Johnson, "Blow up of incompressible Euler solutions," *BIT Numerical Mathematics*, vol. 48, no. 2, pp. 285-307, 2008.

[34]

J. Hoffman and C. Johnson, "A new approach to computational turbulence modeling," *Computer Methods in Applied Mechanics and Engineering*, vol. 195, no. 23-24, pp. 2865-2880, 2006.

[35]

J. Hoffman, "Adaptive simulation of the subcritical flow past a sphere," *Journal of Fluid Mechanics*, vol. 568, pp. 77-88, 2006.

[36]

J. Hoffman and C. Johnson, "Irreversibility in reversible systems," *HERMIS The international journal of computer mathematics and its applications*, vol. 6, pp. 12-33, 2006.

[37]

J. Hoffman, "Simulation of turbulent flow past bluff bodies on coarse meshes using General Galerkin methods : drag crisis and turbulent Euler solutions," *Computational Mechanics*, vol. 38, no. 05-apr, pp. 390-402, 2006.

[38]

J. Hoffman and C. Johnson, "Stability of the dual Navier-Stokes equations and efficient computation of mean output in turbulent flow using adaptive DNS/LES," *Computer Methods in Applied Mechanics and Engineering*, vol. 195, no. 13-16, pp. 1709-1721, 2006.

[39]

J. Hoffman, "Computation of mean drag for bluff body problems using adaptive DNS/LES," *SIAM Journal on Scientific Computing*, vol. 27, no. 1, pp. 184-207, 2005.

[40]

J. Hoffman, C. Johnson and S. Bertoluzza, "Subgrid modeling for convection-diffusion-reaction in one space dimension using a Haar Multiresolution analysis," *Computer Methods in Applied Mechanics and Engineering*, vol. 194, no. 1, pp. 19-44, 2005.

[41]

J. Hoffman, "On Duality-Based A Posteriori Error Estimation in Various Norms and Linear Functionals for Large Eddy Simulation," *SIAM Journal on Scientific Computing*, vol. 26, no. 1, pp. 178-195, 2004.

[42]

J. Hoffman, "Subgrid Modeling for Convection-Diffusion-Reaction in Two Space Dimensions Using a Haar Multiresolution Analysis," *Mathematical Models and Methods in Applied Sciences*, vol. 13, no. 10, pp. 1515-1536, 2003.

[43]

J. Hoffman and C. Johnson, "Adaptive finite element methods for incompressible fluid flow," *Lecture notes in computational Science and Engineering*, 2002.

[44]

J. Hoffman, "Dynamic subgrid modelling for time dependent convection-diffusion-reaction equations with fractal solutions," *International Journal for Numerical Methods in Fluids*, vol. 40, no. 3-4, pp. 583-592, 2002.

[45]

J. Hoffman, "Dynamic subgrid modeling for scalar convection-diffusion-reaction equations with fractal coefficients," *Lecture notes in computational science and engineering*, 2001.

[46]

J. H. Spühler *et al.*, "A High Performance Computing Framework for Finite Element Simulation of Blood Flow in the Left Ventricle of the Human Heart," in *Lecture Notes in Computational Science and Engineering*, 2020, pp. 155-164.

[47]

M. Moragues Ginard *et al.*, "Simulation of floating platforms for marine energy generation," in *10th International Conference on Computational Fluid Dynamics, ICCFD 2018*, 2018.

[48]

N. C. Degirmenci *et al.*, "A Unified Numerical Simulation of Vowel Production That Comprises Phonation and the Emitted Sound," in *Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH 2017*, 2017, pp. 3492-3496.

[49]

D. Larsson *et al.*, "Estimation of left ventricular blood flow parameters : Clinical application of patient-specific CFD simulations from 4D echocardiography," in *Medical Imaging 2017 : Ultrasonic Imaging and Tomography*, 2017.

[50]

J. Hoffman *et al.*, "FEniCS-HPC: Coupled Multiphysics in Computational Fluid Dynamics," in *High-Performance Scientific Computing : Jülich Aachen Research Alliance (JARA) High-Performance Computing Symposium*, 2017, pp. 58-69.

[51]

E. Krishnasamy, J. Hoffman and J. Jansson, "Direct FEM large scale computation of turbulent multiphase flow in urban water systems and marine energy," in *ECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering*, 2016, pp. 1339-1351.

[52]

J. Hoffman, J. Jansson and N. Jansson, "FEniCS-HPC : Automated predictive high-performance finite element computing with applications in aerodynamics," in *Proceedings of the 11th International Conference on Parallel Processing and Applied Mathematics, PPAM 2015*, 2016, pp. 356-365.

[53]

D. Larsson *et al.*, "Multimodal validation of patient-specific intraventricular flow simulations from 4D echocardiography," in *2016 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS)*, 2016.

[54]

J. Jansson *et al.*, "Adaptive simulation of unsteady flow past the submerged part of a floating wind turbine platform," in *MARINE 2015 - Computational Methods in Marine Engineering VI*, 2015, pp. 35-46.

[55]

D. Larsson *et al.*, "Patient-specific flow simulation of the left ventricle from 4D echocardiography - feasibility and robustness evaluation," in *2015 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS)*, 2015.

[56]

J. Jansson *et al.*, "Adaptive stabilized finite element framework for simulation of vocal fold turbulent fluid-structure interaction," in *Proceedings of Meetings on Acoustics : Volume 19, 2013*, 2013, pp. 1-9.

[57]

J. Hoffman *et al.*, "Computation of slat noise sources using adaptive FEM and lighthill's analogy," in *19th AIAA/CEAS Aeroacoustics Conference*, 2013.

[58]

R. Vilela De Abreu, J. Hoffman and J. Jansson, "Towards the development of adaptive finite element methods for internal flow aeroacoustics," in *19th AIAA/CEAS Aeroacoustics Conference*, 2013.

[59]

J. Hoffman and N. Jansson, "A computational study of turbulent flow separation for a circular cylinder using skin friction boundary conditions," in *Quality And Reliability Of Large-Eddy Simulations II*, 2011, pp. 57-68.

[60]

R. Abreu, N. Jansson and J. Hoffman, "Adaptive computation of aeroacoustic sources for a rudimentary landing gear using lighthill's analogy," in *17th AIAA/CEAS AeroacousticsConference 2011 : 32nd AIAA Aeroacoustics Conference*, 2011.

[61]

N. Jansson, J. Hoffman and M. Nazarov, "Adaptive simulation of turbulent flow past a full car model," in *State of the Practice Reports, SC'11*, 2011.

[62]

J. Jansson *et al.*, "Gestural 3D Interaction with a Beating Heart : Simulation Visualization and Interaction," in *Proceedings of SIGRAD 2011 : Evaluations of Graphics and Visualization— Efficiency, Usefulness, Accessibility, Usability*, 2011.

[63]

R. Vilela de Abreu, N. Jansson and J. Hoffman, "Adaptive computation of aeroacoustic sources for a 4-wheel rudimentary landing gear benchmark problem," in *Workshop on Bechmark Problems Airframe Noise Computation (BANC-I) Stockholm*, 2010.

[64]

M. Nazarov and J. Hoffman, "An adaptive finite element method for the compressible Euler equations," in *INT J NUMER METHOD FLUID*, 2010, pp. 1102-1128.

[65]

J. Hoffman, "Adaptive Turbulence Computation Based on Weak Solutions and Weak Uniqueness," in *QUALITY AND RELIABILITY OF LARGE-EDDY SIMULATIONS*, 2008, pp. 21-35.

[66]

J. Hoffman, "Simulating drag crisis for a sphere using skin friction boundary conditions," in *Proceedings ECCOMAS CFD 2006*, 2006.

[67]

J. Hoffman, C. Johnson and A. Logg, "Mathematics and computation," in *4th European Congress of Mathematics*, 2005.

[68]

J. Hoffman, "Weak uniqueness of the navier-stokes equations and adaptive turbulence simulation," in *Leslie Fox Prize Meeting, University of Dundee*, 2005.

[69]

J. Hoffman and C. Johnson, "Adaptive finite element methods for turbulent flow," in *Numerical Mathematics And Advanced Applications, Proceedings*, 2004, pp. 430-439.

[70]

J. Hoffman and C. Johnson, "Adaptive multiscale computational modeling of complex incompressible ﬂuid ﬂow," in *Conference proceedings of WCCM Fifth World Congress on Computational Mechanics*, 2002.

[71]

J. Hoffman and C. Johnson, "Adaptive finite element methods for incompressible fluid flow," in *Proceedings/Lecture notes of Nasa/VKI Lecture series: Error estination and solution adaptive discrezation in computational fluid dynamics*, 2001.

[72]

J. Hoffman, "Dynamic subgrid modeling for time dependent convection-diffusion-reaction equations with fractal solutions," in *Conference Proceedings of ICFD 2001: International Conference for NUmercial Methods in Fluids*, 2001.

[73]

J. Hoffman, C. Johnson and A. Logg, "Topics in adaptive computational methods for differential equations," in *Conference Proceedings of Congresso de Eduaciones Diferenciales y aplicaciones Salamanca*, 2001.

[74]

J. Hoffman, "Dynamic subgrid modeling for scalar convection-diffusion-reaction equations with fractal coefficients," in *Conference Proceedings of Yes 2000: Yosemite Educational Symposium on Multiscale and Multiresolution Mehods*, 2000.

[75]

J. Hoffman and C. Johnson, *Computational turbulent incompressible flow : Applied mathematics: Body and soul 4.* Springer Berlin/Heidelberg, 2007.

[76]

J. Hoffman *et al.*, "Computability and Adaptivity in CFD," in *Encyclopedia of Computational Mechanics, *Erwin Stein, René de Borst, Thomas J. R. Hughes Ed., : John Wiley & Sons, 2018.

[77]

J. Jansson *et al.*, "Time-resolved Adaptive Direct FEM Simulation of High-lift Aircraft Configurations : Chapter in "Numerical Simulation of the Aerodynamics of High-Lift Configurations'", Springer," in *Numerical Simulation of the Aerodynamics of High-Lift Configurations, *Omar Darío López Mejia andJaime A. Escobar Gomez Ed., : Springer, 2018, pp. 67-92.

[78]

J. Hoffman, B. Holm and T. Richter, "The locally adapted parametric finite element method for interface problems on triangular meshes," in *Fluid-Structure Interaction: Modeling, Adaptive Discretizations and Solvers, *Stefan Frei, Bärbel Holm, Thomas Richter, Thomas, Huidong Yang Ed., : Walter de Gruyter, 2017, pp. 41-63.

[79]

J. Hoffman *et al.*, "Turbulent flow and Fluid–structure interaction," in *Lecture Notes in Computational Science and Engineering, * : Springer Science and Business Media Deutschland GmbH, 2012, pp. 543-552.

[80]

J. Hoffman *et al.*, "Unicorn : A unified continuum mechanics solver," in *Lecture Notes in Computational Science and Engineering, * : Springer Science and Business Media Deutschland GmbH, 2012, pp. 339-361.

[81]

J. Hoffman *et al.*, "Unicorn: a unified continuum mechanics solver; in automated solution pf differential equations by the finite element method," in *Automated Solution of Differential Equations by the Finite Element Method, *Anders Logg, Kent-Andre Mardal, Garth Wells Ed., : Springer Berlin/Heidelberg, 2012.

[82]

J. Hoffman *et al.*, "Turbulent flow and fluid-structure interaction; in automated solution of differental equations by the finite element method," in *Automated Solution of Differential Equations by the Finite Element Method, *Anders Logg Kent-Andre Mardal, Garth Wells Ed., : Springer Berlin/Heidelberg, 2011.

[83]

J. Hoffman and C. Johnson, "Computability and adaptivity in CFD," in *Encyclopedia of computational mechanics, *E. Stein, R. de Borst,T.J.R. Hughes Ed., : Wiley, 2007.

[84]

J. Hoffman and C. Johnson, "Adaptive DNS/LES : a new agenda in cfd," in *Finite element methods : 1970s and beyond, *L.P. Franca, T.E. Tezduyar and A. Masud Ed., Barcelona : CIMNE, 2004.

[85]

C. Hoffman and C. Johnson, "Adaptive finite element methods for incompressible flow," in *Error Estimation and Adaptive Discretization Methods in Computational Fluid Dynamics, *Barth, Timothy J.; Deconinck, Herman Ed., : Springer, 2003.

[86]

J. Hoffman and C. Johnson, "The mathematical secret of flight," *Normat*, vol. 57, no. 4, pp. 145-169, 2009.

[87]

Van D. Nguyen *et al.*, "A fluid-structure interaction model with weak slip velocity boundary conditions on conforming internal interfaces," in *6th European Conference on Computational Mechanics (ECCM), 7th European Conference on Computational Fluid Dynamics (ECFD 7), 1115 June 2018, Glasgow, UK*, 2018.

[88]

Van D. Nguyen *et al.*, "Modelling of rotating vertical axis turbines using a multiphase finite element method," in *MARINE 2017 : Computational Methods in Marine Engineering VII15 - 17 May 2017, Nantes, France*, 2017, pp. 950-959.

[89]

J. Hoffman *et al.*, "Time-resolved adaptive FEM simulation of the DLR-F11 aircraft model at high Reynolds number," in *52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014*, 2014.

[90]

R. V. de Abreu, N. Jansson and J. Hoffman, "Adaptive Computation of Aeroacoustic Sources for Rudimentary Landing Gear," in *Benchmark problems for Airframe Noise Computations I, Stockholm 2010*, 2010.

[91]

J. Hoffman, C. Johnson and A. Logg, *Dreams of Calculus : Perspectives on Mathematics Education.* Berlin : Springer, 2004.

[92]

J. Hoffman, "Computational modeling of complex flow : Doctoral thesis at Chalmers University of Technology," Doctoral thesis : Chalmers University of Technology, 2002.

[93]

J. Hoffman, "Dynamic Computational Subgrid Modeling," Licentiate thesis : Chalmers University, 2000.

[94]

[95]

J. H. Spühler *et al.*, "A finite element framework for high performance computer simulation of blood flow in the left ventricle of the human heart," KTH Royal Institute of Technology, CTL Technical Report, 34, 2015.

[96]

N. Jansson and J. Hoffman, "Improving Parallel Performance of FEniCS Finite Element Computations by Hybrid MPI/PGAS," , CTL Technical Report, 29, 2013.

[97]

N. Jansson and J. Hoffman, "A Hybrid MPI/PGAS Finite Element Solver," KTH Royal Institute of Technology, TRITA-CTL, 28, 2012.

[98]

J. Jansson, J. Hoffman and N. Jansson, "Simulation of 3D unsteady incompressible flow past a NACA 0012 wing section," Stockholm : KTH Royal Institute of Technology, TRITA-CTL-4, 023, 2012.

[99]

J. Hoffman *et al.*, "The FEniCS project," Göteborg : Chalmers, Chalmers Finite Element Center Preprint, 2003-21, 2003.

[100]

J. Hoffman and A. Logg, "DOLFIN: Dynamic Object oriented Library for FINite element computation," Göteborg : Chalmers, Chalmers Finite Element Center Preprint, 2002-06, 2002.

[101]

J. Hoffman and C. Johnson, "Analysis of separation in turbulent on incompressible flow," (Manuscript).

[102]

N. Jansson and J. Hoffman, "Computer simulation of incompressible flow past a circular cylinder at a very high Reynolds numbers," (Manuscript).

[103]

J. H. Spühler *et al.*, "3D Fluid-Structure Interaction Simulation of Aortic Valves Using a Unified Continuum ALE-FEM Model," (Manuscript).

[104]

J. H. Spühler *et al.*, "A 3D full-friction contact model for fluid-structure interaction problems," (Manuscript).

[105]

Van D. Nguyen *et al.*, "A partition of unity finite element method for computational diffusion MRI," (Manuscript).

[106]

R. Vilela de Abreu, N. Jansson and J. Hoffman, "Computation of Aeroacoustic Sources for a Gulfstream G550 Nose Landing Gear Model Using Adaptive FEM," (Manuscript).

[107]

J. Jansson and J. Hoffman, "Direct FEM parallel-in-time computation of turbulent flow," (Manuscript).

[108]

J. Jansson *et al.*, "Direct finite element simulation of turbulent flow for marine based renewable energy," (Manuscript).

[109]

N. Jansson and J. Hoffman, "Improving Parallel Performance of FEniCS Finite Element Computations by Hybrid MPI/PGAS," (Manuscript).

[110]

J. Jansson, J. Hoffman and N. Jansson, "Simulation of 3d unsteady incompressible flow past a NACA 0012 wing section," (Manuscript).

[111]

R. Vilela de Abreu, J. Hoffman and N. Jansson, "Towards the development of adaptive finite element methods for aeroacoustics," (Manuscript).

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2024-02-27 00:32:52

**KTH Royal Institute of Technology**

*SE-100 44 Stockholm Sweden +46 8 790 60 00*