Complex Fluids (Group leader: Xiangyu Hu)

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Our reseach is focused on computational multi-physics and multi-scale fluid dynamics, which is expanding beyond the traditional realm of computational fluid dynamics. “multi-physics” suggests that the flows are coupled with multi-phase, chemical reaction, electric/magnetic field, radiation, gravity or/and other physical phenomena. Recently, another issue, the “multi-scale” imbedded in many multi-physics flow systems, becomes more and more important. “multi-scale” usually suggests flow problems with several separated dominant scales or with a large range of continuous scales. This issue is critical because the computational efficiency is usually determined by the ratios of resolved length scales.

We develop numerical methods and study complex scientific and engineering problems by numerical simulations. The research  areas in our group are in: Smoothed Particle Dynamics (SPH) methods, numerical methods for Multi-fluid/-phase Flows and their application in Aerodynamics, Life Science and Microfluidics.  We emphasize simple, accurate, numerical stable  algorithms for problems characterized with complex, multi-scale, multi-physics phenomena.

Veröffentlichungen

2019

Journal Articles

  • Fu, L.; Hu, XY, Adams, N.A.: Improved Five- and Six-Point Targeted Essentially Nonoscillatory Schemes with Adaptive Dissipation. AIAA Journal (Vol. 57, Issue 3), 2019, pp. 1143-1158 more… BibTeX Full text ( DOI )
  • Fu, Lin; Han, Luhui; Hu, Xiangyu Y.; Adams, Nikolaus A.: An isotropic unstructured mesh generation method based on a fluid relaxation analogy. Computer Methods in Applied Mechanics and Engineering 350, 2019, 396-431 more… BibTeX Full text ( DOI )
  • Fu, Lin; Ji, Zhe; Hu, Xiangyu Y.; Adams, Nikolaus A.: Parallel fast-neighbor-searching and communication strategy for particle-based methods. Engineering Computations 36 (3), 2019, 899-929 more… BibTeX Full text ( DOI )
  • Ji, Z.; Fu, L.; Hu, X.Y.; Adams, N.A.: A Lagrangian Inertial Centroidal Voronoi Particle method for dynamic load balancing in particle-based simulations. Computer Physics Communications, 2019 more… BibTeX Full text ( DOI )
  • Ji, Z.; Fu, L.; Hu, X.Y.; Adams, N.A.: A new multi-resolution parallel framework for SPH. Computer Methods in Applied Mechanics and Engineering (Vol. 346), 2019, pp. 1156-1178 more… BibTeX Full text ( DOI )
  • Lin Fu; Xiangyu Hu; Nikolaus A. Adams: A Targeted ENO Scheme as Implicit Model for Turbulent and Genuine Subgrid Scales. Communications in Computational Physics 26 (2), 2019, 311-345 more… BibTeX Full text ( DOI )
  • Wang, Jian-Hang.; Pan, S.; Hu, X.Y.; Adams, N.A.: Partial characteristic decomposition for multi-species Euler equations. Computers and Fluids (Vol. 181), 2019, pp. 364-382 more… BibTeX Full text ( DOI )
  • Wang, Jian-Hang; Pan, Shucheng; Hu, Xiangyu Y.; Adams, Nikolaus A.: A split random time-stepping method for stiff and nonstiff detonation capturing. Combustion and Flame 204, 2019, 397-413 more… BibTeX Full text ( DOI )
  • Wang, Jian-Hang; Pan, Shucheng; Hu, Xiangyu Y.; Adams, Nikolaus A.: A species-clustered splitting scheme for the integration of large-scale chemical kinetics using detailed mechanisms. Combustion and Flame 205, 2019, 41-54 more… BibTeX Full text ( DOI )
  • Zhang, Chi.; Xiang, G.M.; Wang, B.; Hu, X.Y.; Adams, N.A.: A weakly compressible SPH method with WENO reconstruction. Journal of Computational Physics 392, 2019, 1-18 more… BibTeX Full text ( DOI )
  • Zhu, Yujie; Hu, Xiangyu: Free-stream preserving linear-upwind and WENO schemes on curvilinear grids. Journal of Computational Physics 399, 2019, 108907 more… BibTeX Full text ( DOI )

2018

Journal Articles

  • Fu, L., Hu, X.Y., Adams, N.A.: A new class of adaptive high-order targeted ENO schemes for hyperbolic conservation laws. Journal of Computational Physics Vol. 374, 2018, pp. 724-751 more… BibTeX Full text ( DOI )
  • Han, LH ; Hu, XY: SPH modeling of fluid-structure interaction. JOURNAL OF HYDRODYNAMICS Vol. 30 (Issue 1), 2018, pp. 62-69 more… BibTeX Full text ( DOI )
  • Lyu, X.; Pan, S.; Hu, X.; Adams, N.A.:: Numerical investigation of homogeneous cavitation nucleation in a microchannel. PHYSICAL REVIEW FLUIDS 3 (6), 2018, 064303 more… BibTeX Full text ( DOI )
  • Pan, S.; Adami, S.; Hu, X.; Adams, N.: Phenomenology of bubble-collapse-driven penetration of biomaterial-surrogate liquid-liquid interfaces. Physical Review Fluids (Vol. 3, Issue 2 ), 2018, Article Number 114005 more… BibTeX Full text ( DOI )
  • Pan, S.; Han, L.; Hu, X.Y.; Adams, N.A.: A conservative interface-interaction method for compressible multi-material flows. Journal of Computational Physics (Vol. 371), 2018, pp. 870-895 more… BibTeX Full text ( DOI )
  • Pan, S.; Hu, X.; Adams, N.A.: A consistent analytical formulation for volume estimation of geometries enclosed by implicitly defined surfaces. SIAM Journal on Scientific Computing Vol. 40 (Issue 3), 2018, A1523-A1543 more… BibTeX Full text ( DOI )
  • Pan, S.; Hu, X.Y.; Adams, N.A.: High-resolution method for evolving complex interface networks. Computer Physics Communications Vol. 225, 2018, pp. 10-27 more… BibTeX Full text ( DOI )
  • Pan, S.; Lyu, X.; Hu, X.Y.; Adams, N.A.: High-order time-marching reinitialization for regional level-set. Journal of Computational Physics Vol. 354, 2018, pp. 311-319 more… BibTeX Full text ( DOI )
  • Wang, B.; Xiang, G.; Hu, X.Y.: An incremental-stencil WENO reconstruction for simulation of compressible two-phase flows. International Journal of Multiphase Flow Vol. 104, 2018, pp. 20-31 more… BibTeX Full text ( DOI )

Conference Papers / Poster

  • Um, K.; Hu, X.; Thuerey, N.: Liquid Splash Modeling with Neural Networks. Symosium on Computer Animation , 2018Computer Graphics Forum , pp. 171-182 more… BibTeX

2017

Journal Articles

  • Fu, L., Hu, X.Y., Adams, N.A.: Single-step reinitialization and extending algorithms for level-set based multi-phase flow simulations. Computer Physics Communications 221, 2017, 63-80 more… BibTeX Full text ( DOI )
  • Fu, L., Hu, X.Y., Adams, N.A.: Targeted ENO schemes with tailored resolution property for hyperbolic conservation laws. Journal of Computational Physics 349, 2017, 97-121 more… BibTeX Full text ( DOI )
  • Fu, L., Litvinov, S., Hu, X.Y., Adams, N.A.: A novel partitioning method for block-structured adaptive meshes. Journal of Computational Physics 341, 2017, 447-473 more… BibTeX Full text ( DOI )
  • Fu, L.; Hu, X.Y.; Adams, N.A.:: A physics-motivated Centroidal Voronoi Particle domain decomposition method,. Journal of Computational Physics 335, 2017, pp. 718-735 more… BibTeX Full text ( DOI )
  • Um, K., Hu, X., Thuerey, N.: Perceptual evaluation of liquid simulation methods. ACM Transactions on Graphics 36 (4), 2017, Article number 143 more… BibTeX Full text ( DOI )
  • Zhang, C.; Hu, X.Y.; Adams, N.A.:: A weakly compressible SPH method based on a low-dissipation Riemann solver,. Journal of Computational Physics 335, 2017, pp. 605-620 more… BibTeX Full text ( DOI )
  • Zhang, C.; Hu, X.Y.; Adams, N.A.:: A generalized transport-velocity formulation for smoothed particle hydrodynamics,. Journal of Computational Physics, 337, 2017, pp. 216-232, more… BibTeX Full text ( DOI )

Conference Papers

  • Fu, L., Hu, X.Y., Adams, N.A.: Implicit large eddy simulations with a high-order TENO scheme. 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 10, 2017 Swissotel ChicagoChicago; United States; 6 July 2017 through 9 July 2017; Code 130996 more… BibTeX
  • Pan, S.; Adami, S.; Hu, X.; Adams, N.A.: Shock-bubble Interaction Near a Compliant Tissue-like Material. International Symposium on Turbulence and Shear Flow Phenomena [TSFP 10], 2017 more… BibTeX Full text (mediaTUM)

2016

Journal Articles

  • Fu, L. ; Hu, X.Y.; , Adams, N.A.: A family of high-order targeted ENO schemes for compressible fluid simulations;. Journal of Computational Physics Volume 305, 2016 more… BibTeX Full text ( DOI )
  • Hu, X.Y.:: Simple gradient-based error-diffusion method;. Journal of Electronic Imaging, , 2016 more… BibTeX Full text ( DOI )
  • Luo, J.; Hu, X.Y. ; Adams, N.A.: Efficient formulation of scale separation for multi-scale modeling of interfacial flows. Journal of Computational Physics Volume 308, 2016, Pages 411-420; more… BibTeX Full text ( DOI )
  • Luo, J.; Hu, X.Y. ; Adams, N.A.: Curvature boundary condition for a moving contact line. Journal of Computational Physics Volume 310, 2016 more… BibTeX Full text ( DOI )
  • Schranner, F.S.; Hu, X. ; Adams, N.A.: On the convergence of the weakly compressible sharp-interface method for two-phase flows. Journal of Computational Physics Volume 324, 2016, Pages 94-114 more… BibTeX Full text ( DOI )

2015

Journal Articles

  • Han, L.H.; Hu, X.Y. ; Adams, N.A.: Scale separation for multi-scale modeling of free-surface and two-phase flows with the conservative sharp interface method. Journal of Computational Physics Volume 280, 2015, Pages 387-403 more… BibTeX Full text ( DOI )
  • Hu, X.Y. ; Wang, B.; Adams, N.A.: An efficient low-dissipation hybrid weighted essentially non-oscillatory scheme. Journal of Computational Physics Volume 301, 2015, Pages 415-424 more… BibTeX Full text ( DOI )
  • Litvinov, S.; Hu, X.Y.; Adams, N.A.: Towards consistence and convergence of conservative SPH approximations. Journal of Computational Physics Volume 301, 2015, Pages 394-401 more… BibTeX Full text ( DOI )
  • Luo, J. ; Hu, X.Y.; Adams, N.A.: A conservative sharp interface method for incompressible multiphase flows. Journal of Computational Physics Volume 284, 2015, Pages 547-565 more… BibTeX Full text ( DOI )

Conference Papers

2014

Journal Articles

  • Han, L. H.; Hu, X. Y.; Adams, N. A.: Adaptive multi-resolution method for compressible multi-phase flows with sharp interface model and pyramid data structure. Journal of Computational Physics (262), 2014, pp. 131-152 more… BibTeX Full text ( DOI )
  • Litvinov, S.; Hu, X.; Ellero, M.; Adams, N.: Mesoscopic simulation of the transient behavior of semi-diluted polymer solution in a microchannel following extensional flow. Microfluidics and Nanofluidics 16 (Issue 1-2 ), 2014, Pages 257-264 more… BibTeX Full text ( DOI )
  • Tritschler, V. K.; Olson, B. J.; Lele, S. K.; Hickel, S.; Hu, X. Y.; Adams, N. A.: On the Richtmyer-Meshkov instability evolving from a deterministic multimode planar interface. Journal of Fluid Mechanics (755 / 2), 2014, pp. 429-462 more… BibTeX Full text ( DOI )
  • Tritschler, V.K.; Avdonin, A.; Hickel, S.; Hu, X.Y.; Adams, N.A.: Quantification of initial-data uncertainty on a shock-accelerated gas cylinder. Physics of Fluids Art.no. 026101, 2014 more… BibTeX Full text ( DOI )

2013

Journal Articles

  • Adami, S.; Hu, X.Y.; Adams, N.A.: A transport-velocity formulation for smoothed particle hydrodynamics. Journal of Computational Physics 241 , 2013, Pages 292–307 more… BibTeX Full text ( DOI )
  • Hu, X. Y.; Adams, N. A.; Shu, Chi-Wang: Positivity-preserving method for high-order conservative schemes solving compressible Euler equations. Journal of Computational Physics 242, 2013, Pages 169–180 more… BibTeX Full text ( DOI )
  • Litvinov, S.; Hu, X. Y.; Ellero, M.; Adams, N. A.: Mesoscopic simulations of the transient behavior of semi-diluted polymer solutions in a microchannel following extensional flow. Microfluidics and Nanofluidics , 2013 more… BibTeX
  • Schranner, F.S.; Hu, X.Y. ; Adams, N.A.: A physically consistent weakly compressible high-resolution approach to underresolved simulations of incompressible flows. Computers and Fluids Volume 86, 2013, Pages 109-124 more… BibTeX Full text ( DOI )
  • Tritschler, V.K.; Hu, X.Y.; Hickel, S.; Adams, N.A.: Numerical simulation of a Richtmyer-Meshkov instability with an adaptive central-upwind sixth-order WENO scheme. Physica Scripta 88 (T155) Art.-no. 014016, 2013 more… BibTeX Full text ( DOI )
  • Tritschler,V. K.; Hickel, S.; Hu, X. Y.; Adams, N. A.: On the Kolmogorov inertial subrange developing from Richtmyer-Meshkov instability. Physics of Fluids 25 (7), 2013, art.no. 071701 more… BibTeX Full text ( DOI )

Conference Papers

  • Schranner, Felix S.; Hu, Xiangyu Y.; Adams, Nikolaus A.: Long-Time Evolution of the Incompressible Three-Dimension Taylor-Green Vortex at Very High Reynolds Number. International Symplosium on Turbulence and Shear-Flor Phenomena (TSFP-8), 2013 more… BibTeX
  • So, K.; Chantrasmi, T.; Hu, X.Y.; Stemmer, C.; Iaccarion, G.; Adams, N.A.: Uncertainty quantification of shock-bubble interaction through the stochastic collocation method. EUROMECH Colloquium, 2013 more… BibTeX

2012

Journal Articles

  • Adami, S.; Hu, X.Y.; Adams, N.A.: A generalized wall boundary condition for Smoothed Particle Hydrodynamics. Journal of Computational Physics Volume 231 (21), 2012, Pages 7057-7075 more… BibTeX Full text ( DOI )
  • Lauer, E.; Hu, X. Y., Hickel, S. , Adams, N.A.: Numerical investigation of collapsing cavity arrays. Physics of Fluids (24 / 5), 2012, Art.-No. 052104 more… BibTeX Full text ( DOI )
  • Lauer, E.; Hu, X. Y.; Hickel, S.; Adams, N.A.: Numerical modelling and investigation of symmetric and asymmetric cavitation bubble dynamics. Computers and Fluids 69, 2012, pp. 1-19 more… BibTeX Full text ( DOI )
  • Tritschler, V. K.; Hu, X. Y.; Hickel, S.; Adams, N. A.: Numerical simulation of a Richtmyer–Meshkov instability with an adaptive central-upwind sixth-order WENO scheme. Physica Scripta, 2012 more… BibTeX Full text (mediaTUM)

Conference Papers

  • Adami, S.; Hu, X.Y.; Adams, N.A.: Contact line hydrodynamics with SPH. 7th SPHERIC Workshop, 2012Prato, Italy, May 29-31 more… BibTeX
  • Han L. H.; Hu X. Y.; Adams N.A.: Multi-scale modeling for multi-phase (interfacial) turbulent flows. International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements [9th.], 2012 more… BibTeX
  • Hu X.Y.; Adams N. A.: Early-time interface instabilities in high intensity aero-breakup of liquid drop. International Congress of Theoretical and Applied Mechanics [23rd.], 2012 more… BibTeX
  • Hu X.Y.; Lauer, E.; Adams, N. A.: Numerical investigation of collapsing cavity arrays. International Symposium on Cavitation [8th.], 2012 more… BibTeX
  • Hu, X. Y.; Adams, N. A.: A SPH model for incompressible turbulence. SPHERIC Workshop [7th.] , 2012 more… BibTeX
  • Litvinov S.; Ellero, M.; Hu, X. Y.; Adams, N.A..: Dissipative particle dynamics simulation of transient flow of dilute polymer solutions confined in a channel. International Workshop on Numerical Methods for Non-Newtonian Flows [17th.], 2012 more… BibTeX
  • So K.; Hu X. Y.; Adams, N. A.: Anti-Diffusion Interface Sharpening Technique for Two-Phase Compressible Flow Simulations. International Conference on Numerical Methods in Multiphase Flow [1st.], 2012, pp. 4304-4323 more… BibTeX Full text ( DOI )

Misc.

  • Adami, S.; Hu, X. Y.; Adams, N.A.: Numerical investigation of complex multiphase flows with Lagrangian particle methods. 2012 more… BibTeX
  • Adami, S.; Hu, X. Y.; Adams, N.A.: Simulating 3D turbulence with SPH. Center for Turbulence Research, Stanford University, 2012, more… BibTeX
  • Adami, S.; Hu, X.; Adams, N.: Contact line hydrodynamics with SPH – 7th SPHERIC Wporkshop, Prato, Italy. Lehrstuhl für Aerodynamik, 2012, more… BibTeX Full text (mediaTUM)
  • Adami, S.; Hu, X.; Adams, N.: Simulating three-dimensional turbulence with SPH – Proceedings of the 2012 Summer Program. Stanford University, 2012, more… BibTeX Full text (mediaTUM)

2011

Journal Articles

  • Han, L. H.; Indinger, T.; Hu, X. Y.; Adams, N. A.: Wavelet-based adaptive multi-resolution solver on heterogeneous parallel architecture for computational fluid dynamics. Computer Science - Research and Development 26 (3-4), 2011, Pages 197–203 more… BibTeX
  • Hu, X. Y.; Adams, N. A.: Scale separation for implicit large eddy simulation. Journal of Computational Physics 230 (19), 2011, Pages 7240-7249 more… BibTeX Full text ( DOI )
  • Litvinov, S.; Hu, X. Y. ; Adams, N. A.: Numerical simulation of tethered DNA in shear flow. Journal Phys.: Condens. Matter 23, 2011 more… BibTeX Full text ( DOI )
  • So, K. K.; Hu, X.Y.; Adams, N.A.: Anti-diffusion method for interface steepening in two-phase incompressible flow. Journal of Computational Physics 230, 2011, Pages 5155–5177 more… BibTeX

2010

Journal Articles

  • Adami, S.; Hu, X. ; Adams, N.: A new surface-tension formulation for multi-phase SPH using a reproducing divergence approximation;. Journal of Computational Physics 229(13), 2010, Pages 5011-5021 more… BibTeX
  • Adami, S.; Hu, X. Y.; Adams, N.: A conservative SPH method for surfactant dynamics. Journal of Computational Physics 229(5), , 2010, Pages 1909-1926 more… BibTeX
  • Hu, X.; Wang, Q.; Adams, N.: An adaptive central-upwind weighted essentially non-oscillatory scheme. Journal of Computational Physics 229, 2010, Pages 8952-8965 more… BibTeX
  • Litvinov, S.; Ellero, M.; Hu, X. ; Adams, N.: A splitting scheme for highly dissipative smoothed particle dynamics. Journal of Computational Physics 229(15),, 2010, Pages 5457-5464 more… BibTeX
  • Litvinov, S.; Ellero, M.; Hu, X.; Adams, N.A.: Particle-layering effect in wall-bounded dissipative particle dynamics. Phys. Rev. E, American Physical Society, 82(6),, 2010, 066704 more… BibTeX
  • Meyer, M.; Devesa, A.; Hickel, S.; Hu, X. ; Adams, N.: A conservative immersed interface method for Large-Eddy Simulation of incompressible flows. Journal of Computational Physics 229,, 2010, Pages 6300-6317 more… BibTeX

Misc.

  • Adami, S.; Hu, X.; Adams, N.: 3D drop deformation and breakup in simple shear flow considering the effect of insoluble surfactant – 5th SPHERIC Workshop, Manchester, UK, 23.-25.6. Lehrstuhl für Aerodynamik, 2010, more… BibTeX Full text (mediaTUM)
  • So, K.K.; Chantrasmi, T.; Hu, X.Y.; Witteveen, J.A.S.; Stemmer, C.; Iaccarino, G.; Adams, N.A.: Uncertainty analysis for shock-bubble interaction: Proceedings of the 2010 CTR Summer Program. 2010 more… BibTeX

2009

Journal Articles

  • Hu, X. Y.; Adams, N. A.: A constant-density approach for incompressible multi-phase SPH. Journal of Computational Physics; (228:2082-2091), 2009 more… BibTeX
  • Hu, X.Y.; Adams, N.A.; Iaccarino, G.: On the HLLC Riemann solver for interface interaction in compressible multi-fluid flow. Journal of Computational Physics; (2278:6572-6589), 2009 more… BibTeX
  • Litvinov, S.; Ellero, M.; Hu, X. Y.; Adams, N. A.: Self-diffusion coefficient in smoothed dissipative particle dynamics. Journal of Computational Physics; (130:021101), 2009 more… BibTeX

2008

Journal Articles

  • Litvinov, S.; Ellero, M.; Hu, X. Y.; Adams, N. A.: Smoothed dissipative particle dynamics model for polymer molecules in suspension. Physical Review E (77:066703), 2008 more… BibTeX

2007

Journal Articles

  • Hu., X. Y.; Adams, N. A.: An incompressible mult-phase SPH method. Journal of Computational Physics (227), 2007, pp. 264-278 more… BibTeX

2006

Journal Articles

  • Hu, X. Y.; Adams, N. A.: Angular-momentrum conservative SPD for incompressible viscous flows. Physical Fluids (18, 101702), 2006 more… BibTeX
  • Hu, X.; Adams, N. A.: A multi-phase SPH method for macroscopic and mesoscopic flows. Journal of Computational Physics (213), 2006, pp. 844-861 more… BibTeX
  • Hu., X. Y.; Khoo, B. C.; Adams, N. A.; Huang, F. I: A conservative interface method for compressible flows. Journal of Computational Physics; (219), 2006, pp. 553-578 more… BibTeX

2003

Journal Articles

  • Hu, X. Y.; Khoo, B. C.: Kinetic energy fix for low internal energy flows. Journal of Computational Physics (193), 2003, pp. 243-259 more… BibTeX

2002

Journal Articles

  • Hu, X. Y.; Guo, C.M.; Zhang, D.L.: Theoretical analysis on dynamic mechanism of cellular detonation. Shock Waves (11), 2002, pp. 475-480 more… BibTeX
  • Hu, X. Y.; Zhang, D. L.: An numerical simulation on the explosion of mixtured gas with elementary reaction model. Journal of Safety and Environmental Engineering (in chinese) (1), 2002, pp. 5-12 more… BibTeX
  • Hu, X. Y.; Zhang, D. L.: Numerical simulation of gaseous detonation pof H2-O2 mixture with detailed chemical reaction model. Explosion and Shock (in chinese) (22), 2002, pp. 1-8 more… BibTeX

2001

Journal Articles

  • Hu, X. Y.; Zhang, D. L.: The variation of the gaseous detonation wave through the cell. Journal of Beijing Institute of Technology (in chinese) (21), 2001, pp. 286-291 more… BibTeX
  • Hu, X. Y.; Zhang, D. L.: Study on dynmic mechanism of cellular structure. High-pressure Physics (in chinese) (15), 2001, pp. 205-214 more… BibTeX

1999

Journal Articles

  • Hu, X. Y.; Huang, F. L.: Simplified equation of states of porous explosives and its application in DYNA2D code. Explosion and Shock (in chinese) (19), 1999, pp. 55-58 more… BibTeX