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[PDF] Top 20 On a one-equation turbulent model with feedbacks

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On a one-equation turbulent model with feedbacks

On a one-equation turbulent model with feedbacks

... the turbulent one within a similar ...to model certain flow regimes that could probably result from eddies which rendered the motion more ...comparison with the time scale of the average of ... See full document

16

Turbulent viscosity optimized by data assimilation

Turbulent viscosity optimized by data assimilation

... turbulence model where the turbulent viscosity and di€usivity coecients are expressed as functions of the turbulent state of the sea ...This turbulent viscosity and di€usivity concept gives ... See full document

15

Combustion analysis on a CFM56-3 engine

Combustion analysis on a CFM56-3 engine

... affects turbulent flow since the Reynolds number decreases as the wall is approached, the mean velocity changes from zero at the wall to its stream value in order to satisfy the no-slip condition, implying large ... See full document

84

Evaluating the influence of selected parameters on sensitivity of a numerical model of solidification

Evaluating the influence of selected parameters on sensitivity of a numerical model of solidification

... parameters on sensitivity of a numerical model of ...investigated model is based on the heat conduction equation with a heat source and solved using the finite element method ... See full document

6

J. Braz. Soc. Mech. Sci. & Eng.  vol.33 número1

J. Braz. Soc. Mech. Sci. & Eng. vol.33 número1

... simulate turbulent thermal wall flows using the classical κ − ε ...based on the manner used to implement heat flux boundary conditions on the solid ...response on different physical aspects of ... See full document

10

Central upwind scheme for a compressible two-phase flow model.

Central upwind scheme for a compressible two-phase flow model.

... five-equation model in one and two-dimensional ...based on the estimation of cell averages by using the information of local propagation ...quantitatively with those of KFVS and stag- ... See full document

26

J. Braz. Soc. Mech. Sci. & Eng.  vol.34 número4

J. Braz. Soc. Mech. Sci. & Eng. vol.34 número4

... used. One of the difficulties the modeler faces when using computational fluid dynamics (CFD) numerical codes is on how to choose the best turbulent model to solve his ...based on the ... See full document

8

rev. educ. fis.  vol.20 número3

rev. educ. fis. vol.20 número3

... structural equation model based on causal relationships suggested by ...inluence on adherence to exercise. These effects are in accordance with the assumptions of the theory, and the ... See full document

8

Influence of Variable Acceleration on Parametric Roll Motion of a Container Ship

Influence of Variable Acceleration on Parametric Roll Motion of a Container Ship

... ships on roll motion is investigated in longitudinal ...simple model is utilized for analysis. Simple Model is one degree of freedom nonlinear parametric roll motion equation which ... See full document

10

Turbulence Kinetic Energy budget during the afternoon transition – Part 2: A simple TKE model

Turbulence Kinetic Energy budget during the afternoon transition – Part 2: A simple TKE model

... the model in many situations for these 9 ...the model is able to simulate roughly the right magnitude and temporal variations of near surface TKE, both on more convective days and in ... See full document

63

Kalman filters for assimilating near-surface observations into the Richards equation – Part 2: A dual filter approach for simultaneous retrieval of states and parameters

Kalman filters for assimilating near-surface observations into the Richards equation – Part 2: A dual filter approach for simultaneous retrieval of states and parameters

... constant diagonal matrix following the basic implementation of the dual UKF proposed by van der Merwe (2004), previ- ously applied by Wan and Nelson (1997), Nelson (2000) and Wan and Nelson (2001) in the context of a ... See full document

21

A simple organized approach for balancing nuclear equation

A simple organized approach for balancing nuclear equation

... nuclear equation is such that it consists of a given nuclear equation in which exactly one coefficient or one of the species (either the reactant or the product) is missing and that missing ... See full document

5

Positive Feedbacks Enhance Macroalgal Resilience on Degraded Coral Reefs.

Positive Feedbacks Enhance Macroalgal Resilience on Degraded Coral Reefs.

... positive feedbacks that more than compensate for competitive costs, especially when plants are in stressful physical or biological circumstances ...herbivory on juveniles and adults growing within the bed ... See full document

17

J. Braz. Chem. Soc.  vol.27 número6

J. Braz. Chem. Soc. vol.27 número6

... placed on a heating plate at 94 °C (Barnstead Thermolyne Super-Nuova, Thermo Fisher Scientific, Waltham, MA, USA) and coupled to a spiral condenser to make water circulate as a cooling ...vacuum-filtered ... See full document

12

Effective nonlinear Schrodinger equations for cigar-shaped and disc-shaped Fermi superfluids at unitarity

Effective nonlinear Schrodinger equations for cigar-shaped and disc-shaped Fermi superfluids at unitarity

... [8] on a BCS superfluid and demonstrated in theoretical model calculations [9], is that, due to a dominance of the Pauli repulsion among fermionic atoms over the interatomic attraction, the Fermi superfluid ... See full document

20

Simplified Mathieu’s equation with linear friction

Simplified Mathieu’s equation with linear friction

... The approximate theory of infinitesimal standing waves is very fruitful in its application to problems with various special boundary configurations. The linear character of both the equations and boundary ... See full document

6

Extended Progress Variable and Mixture Fraction Model for Turbulent Premixed Combustion

Extended Progress Variable and Mixture Fraction Model for Turbulent Premixed Combustion

... transport equation is used to describe a turbulent premixed flame with non-uniform equivalence ratio, caused by lateral entrainment of ...method with a simply extended model is applied ... See full document

5

Consequences of quadratic frictional force on the one dimensional bouncing ball model

Consequences of quadratic frictional force on the one dimensional bouncing ball model

... We confirm that the model experiences contraction of the phase space area and in special, we characterized the behavior of the particle approaching an attracting fixed point.. INTRODUC[r] ... See full document

7

D EVELOPMENT ANDI NTERNATIONALC OOPERATION

D EVELOPMENT ANDI NTERNATIONALC OOPERATION

... than one or two factors, in a number that varies according to each situation; the aim is to expand the neoclassical formalisation providing empirical evidence of the fact that several factors could be relevant in ... See full document

68

Braz. J. Chem. Eng.  vol.23 número2

Braz. J. Chem. Eng. vol.23 número2

... from one to two orders of magnitude smaller than the initial ...associated with the fact that different vegetal structure types have different mass transfer resistances, which makes it more difficult to ... See full document

8

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