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We have recently developed a general-purpose non linear system solver environment for complex physics computations on unstructured grids. This environment, named CartaBlanca, was described at last year's Java Grande Forum. CartaBlanca employs a finite-volume method, [1]. The solution of the non linear algebraic systems, arising from representing the… (More)

- S J Reckinger, D Livescu, O V Vasilyev
- 2010

Numerical simulations of single-mode, compressible Rayleigh–Taylor instability are performed using the adaptive wavelet collocation method (AWCM), which utilizes wavelets for dynamic grid adaptation. Due to the physics-based adaptivity and direct error control of the method, AWCM is ideal for resolving the wide range of scales present in the development of… (More)

- F A Jaberi, D Livescu, C K Madnia
- 2000

Direct numerical simulations ͑DNS͒ are conducted to study the turbulence-chemical reaction interactions in homogeneous decaying compressible fluid flows. The reaction is of a single-step irreversible Arrhenius type. The results indicate that the heat of reaction has a noticeable influence on the solenoidal and the dilatational turbulent motions. The effect… (More)

The data is from a direct numerical simulation (DNS) of homogeneous buoyancy driven turbulence on a 1024 3 periodic grid. The equations solved are the miscible two-fluid incompressible Navier-Stokes equations, which are obtained from the fully compressible Navier-Stokes equations with two species with different molar masses in the limit c → ∞ (c is the… (More)

- D Livescu, C K Madnia
- 2002

The compressibility and heat of reaction influence on the scalar mixing in decaying isotropic turbulence and homogeneous shear flow are examined via data generated by direct numerical simulations (DNS). The reaction is modeled as one-step, exothermic, irreversible and Arrhenius type. For the shear flow simulations, the scalar dissipation rate, as well as… (More)

- S Gerashchenko, D Livescu
- 2016

The growth rate of the compressible Rayleigh-Taylor instability is studied in the presence of a background temperature gradient, Θ, using a normal mode analysis. The effect of Θ variation is examined for three interface types corresponding to combinations of the viscous properties of the fluids (inviscid-inviscid, viscous-viscous and viscous-inviscid) at… (More)

- S J Reckinger, D Livescu, O V Vasilyev
- 2012

Numerical simulations of the compressible Rayleigh-Taylor instability are performed on an adaptive mesh using the Adaptive Wavelet Collocation Method (AWCM). Due to the physics-based adaptivity and direct error control of the method, AWCM is ideal for resolving the wide range of scales present in the development of the instability. The problem is… (More)

We demonstrate, in the context of implicit-filtering large eddy simulations (LESs) of geostrophic turbulence, that while the attractor of a well-resolved statistically stationary turbulent flow can be reached in a coarsely resolved LES that is forced by the subgrid scale (SGS) terms diagnosed from the well-resolved computation, the attractor is generically… (More)

- D Livescu, C K Madnia
- 2002

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