Showing items with similar title or keywords.

• A graph-based multigrid with applications 

  Pennanen, Anssi (University of Jyväskylä, 2010)

• A damping preconditioner for time-harmonic wave equations in fluid and elastic material 

  Airaksinen, Tuomas; Pennanen, Anssi; Toivanen, Jari (Elsevier, 2009)

  A physical damping is considered as a preconditioning technique for acoustic and elastic wave scattering. The earlier preconditioners for the Helmholtz equation are generalized for elastic materials and three-dimensional ...

• Prospectives to tractor cabin design with computational acoustics tools 

  Mönkölä, Sanna; Airaksinen, Tuomas; Makkonen, Pekka; Tuovinen, Tero; Neittaanmäki, Pekka (European Consortium for Mathematics in Industry, 2011)

  Computational acoustical models allow automated optimization of tractor design with respect to acoustic properties, which could speed up significantly the design process of tractor cabin prototypes. This article gives ...

• A parallel splitting-up method for partial differential equations and its applications to Navier-Stokes equations 

  Lu, T.; Neittaanmäki, P.; Tai, X.-C. (AFCET Gauhtier-Villars, 1992)

  The tradìtíonal splitting-up method or fractíonal step method is stuítable for sequentìal compulìng. Thís means that the computing of the present fractional step needs the value of the previous fractional steps. In thìs ...

• Drops moving in flow with chernical reaction 

  Neittaanmäki, Pekka; Rivkind, V. (J. Wiley & Sons, 1994)

  We propose a free boundary model described by coupled Navier-Stokes and chemical reaction equations with discontinuous coefRcients to simulate the chemical re- ¿ctions in viscous drops moving in a viscous incompressible ûuid. ...