Search Results - subject:"Navier–Stokes equation"

Numerical Study of Discharged Heat Water Effect on Aquatic Environment From Coastal Thermal Power Plant by Using Two Water Discharged Pipes

Issakhov, Alibek - In: International Journal of Energy Optimization and … 7 (2018) 2, pp. 97-116

The article presents a numerical study of the thermal load on the aquatic environment by using two water discharge pipes under various operational capacities of thermal power plant. It is solved by the Navier-Stokes and temperature transport equations for an incompressible fluid in a stratified...

Persistent link: https://www.econbiz.de/10012044583

Forward–backward stochastic differential systems associated to Navier–Stokes equations in the whole space

Delbaen, Freddy; Qiu, Jinniao; Tang, Shanjian - In: Stochastic Processes and their Applications 125 (2015) 7, pp. 2516-2561

incompressible Navier–Stokes equation in the whole space. It is shown to have a unique local solution, and further if either the … uniqueness results for the Navier–Stokes equation, and thus provide probabilistic formulas to the latter. Related results and the … time interval of the above FBSDS, approximate solution is derived for the Navier–Stokes equation by a new class of FBSDSs …

Persistent link: https://www.econbiz.de/10011264618

Stochastic modeling of MHD turbulence in magnetized plasma

Nassiri-Mofakham, Nora - In: Physica A: Statistical Mechanics and its Applications 421 (2015) C, pp. 286-299

This paper concerns the magneto-fluid dynamics modeled by the stochastic flow where the turbulent term is driven by the random forcing. Magnetohydrodynamic (MHD) turbulence can be interpreted in terms of a standard map (SM), modeling perturbed Hamiltonian systems, to explain some of the features...

Persistent link: https://www.econbiz.de/10011194033

Local existence and non-explosion of solutions for stochastic fractional partial differential equations driven by multiplicative noise

Röckner, Michael; Zhu, Rongchan; Zhu, Xiangchan - In: Stochastic Processes and their Applications 124 (2014) 5, pp. 1974-2002

Navier–Stokes equation, stochastic quasi-geostrophic equations and stochastic surface growth PDE. …

Persistent link: https://www.econbiz.de/10011065073

Vortex control of instationary channel flows using translation invariant cost functionals

Kasumba, H.; Kunisch, K. - In: Computational Optimization and Applications 55 (2013) 1, pp. 227-263

The use of translation invariant cost functionals for the reduction of vortices in the context of shape optimization of fluid flow domains is investigated. Analytical expressions for the shape design sensitivity involving different cost functionals are derived. Instationary channel flow problems...

Persistent link: https://www.econbiz.de/10010847444

Vortex control in channel flows using translational invariant cost functionals

Kasumba, H.; Kunisch, K. - In: Computational Optimization and Applications 52 (2012) 3, pp. 691-717

The use of translation invariant cost functionals for the reduction of vortices in the context of shape optimization of fluid flow domain is investigated. Analytical expressions for the shape design sensitivity involving different cost functionals are derived. Channel flow problems with a bump...

Persistent link: https://www.econbiz.de/10010896530

Multiscaling in the randomly forced and conventional Navier–Stokes equations

Sain, Anirban; Pandit, Rahul - In: Physica A: Statistical Mechanics and its Applications 270 (1999) 1, pp. 190-203

(1998) 4377) from a pseudospectral study of the randomly forced Navier–Stokes equation (RFNSE) stirred by a stochastic force … with those obtained for the Navier–Stokes equation forced at large spatial scales (3dNSE). We also study a coarse …

Persistent link: https://www.econbiz.de/10011064605

Kinetic theory of turbulence modeling: smallness parameter, scaling and microscopic derivation of Smagorinsky model

Ansumali, Santosh; Karlin, Iliya V.; Succi, Sauro - In: Physica A: Statistical Mechanics and its Applications 338 (2004) 3, pp. 379-394

A mean-field approach (filtering out subgrid scales) is applied to the Boltzmann equation in order to derive a subgrid turbulence model based on kinetic theory. It is demonstrated that the only Smagorinsky type model which survives in the hydrodynamic limit on the viscosity time scale is the...

Persistent link: https://www.econbiz.de/10010591363

Real processing IV. The derivation of the Navier–Stokes equation from the principle of minimal deformation

Reiser, Bernhard - In: Physica A: Statistical Mechanics and its Applications 291 (2001) 1, pp. 512-522

relate here the hydrodynamic Navier–Stokes equation including its non-linear term, to the minimisation of ∫∑i(∇vi)2dV, for …

Persistent link: https://www.econbiz.de/10011058414