• No results found

Modified SST k-ω Model

A numerical investigation of turbulent natural convection in a 3-d enclosure using k-w  SST model and piso method

A numerical investigation of turbulent natural convection in a 3-d enclosure using k-w SST model and piso method

... the k-ω model to buoyancy-driven cavity flows, the model is not capable of returning grid-independent predictions owing to the transition regime along the vertical ...the modified ...

178

On the Suitability of Turbulence Models for the Prediction of Velocity   and Temperature Distributions in Methane Non-Premixed Flame

On the Suitability of Turbulence Models for the Prediction of Velocity and Temperature Distributions in Methane Non-Premixed Flame

... standard k- ε turbulence model are in closer agreement with experimental ...standard k- ε model is able to predict well the velocities in regions close to the surface of the nozzle and further ...

6

Aerodynamics of vortex ingestion for aero-engines

Aerodynamics of vortex ingestion for aero-engines

... and k − turbulence models result in the greatest levels of turbulence inside the vortex core (Figure ...turbulence model, the turbulent viscosity levels are two orders of magnitude larger than those ...

285

Evaluation of Various Turbulence Models for Shock-Wave Boundary Layer Interaction Flows

Evaluation of Various Turbulence Models for Shock-Wave Boundary Layer Interaction Flows

... and SST k-ω model implementations in Fluent ...and SST-V models were implemented in Fluent by use of User-Defined-Functions ...and modified models using UDF are shown in Figure ...

62

Experimental study and application of computational fluid dynamics on the prediction of air velocity and temperature in a ventilated chamber

Experimental study and application of computational fluid dynamics on the prediction of air velocity and temperature in a ventilated chamber

... At this stage, an experimental study is conducted on a chamber that has mechanical longitudinal ventilation. This model has many applications in designing industrial and non- industrial ventilation systems. The ...

13

Dimension theory of random self similar and self affine constructions

Dimension theory of random self similar and self affine constructions

... similarities, i.e. |f i j (x) − f i j (y)| = c j i |x − y|. Let Λ be a compact metric space such that µ is a compactly supported Borel probability measure on Λ. We now construct 1-variable and ∞-variable sets as before ...

143

Performance of SST k-ω Turbulence Model for Computation of Viscous Drag of Axisymmetric Underwater Bodies

Performance of SST k-ω Turbulence Model for Computation of Viscous Drag of Axisymmetric Underwater Bodies

... turbulence model for ship stern flow in the next few years and this had led to the adoption of more advanced models, such as the k-ε turbulence model and the k-ω turbulence ...

8

A numerical study of steady 2D flow around NACA 0015 and NACA 0012 hydrofoil with free surface using VOF method

A numerical study of steady 2D flow around NACA 0015 and NACA 0012 hydrofoil with free surface using VOF method

... Since 1960s, Computational Fluid Dynamics (CFD) has made remarkable progress. The main impetus to this progress is the increasing industrial demands. In traditional design methods, lots of model tests are required ...

6

A review of numerical modelling of multi scale wind turbines and their environment

A review of numerical modelling of multi-scale wind turbines and their environment

... building model. Mohamed and Wood [73] modified the standard kmodel by developing new formulation of the eddy viscosity and compared with previous modifications designed for stagnation ...

37

c4i Community Climate Change Consortium for Ireland 2004 Annual Report

c4i Community Climate Change Consortium for Ireland 2004 Annual Report

... ECHAM4 model has a static aerosol representation and the RCA downscaling does not capture the decreasing trend in short-wave radiation, possibly linked to increasing ...

118

Numerical Simulation of Cold Air Distribution in the Room with Different Supply Patterns

Numerical Simulation of Cold Air Distribution in the Room with Different Supply Patterns

... Realizable k-ε, the SST k- ω modelsand with Box and Momentum methods ...Realizable k-ε and SST k- ω models with experimental data, ...selected model used for ...

9

Comparison of URANS and DES models for dynamic stall of NACA 0012 at low Reynolds number

Comparison of URANS and DES models for dynamic stall of NACA 0012 at low Reynolds number

... to model unsteady simulations are still high for high Reynolds number problems ...to model dynamic stall simulations and the computational cost is lower than other computational methods ...

52

Perturbation Analysis of “k—ω” and “k—ε” Turbulent Models. Wall Functions

Perturbation Analysis of “k—ω” and “k—ε” Turbulent Models. Wall Functions

... for k, omega and epsilon on a wall are evaluated and all theoretical results are compared with numerical ...”k-epsilon” model and Dirichlet boundary condition for ”epsilon, instead of standard ...

5

B Recommended land pattern: [mm] SSt. SSt SSt. SSt. SSt SSt SSt. SBa. SSt

B Recommended land pattern: [mm] SSt. SSt SSt. SSt. SSt SSt SSt. SBa. SSt

... Moreover Würth Elektronik eiSos GmbH & Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transporta[r] ...

6

Computational Analysis of Mixing in Strut Based Combustion at Air Inlet Mach number 2

Computational Analysis of Mixing in Strut Based Combustion at Air Inlet Mach number 2

... 73 Abstract—A computational analysis of mixing of hydrogen and air has been performed considering scramjet (supersonic combustion ramjet) combustor. Hydrogen is injected at M=1 through the rear of a simple strut located ...

8

An improved k –ω turbulence model for the simulations of the wind turbine wakes in a neutral atmospheric boundary layer flow

An improved k –ω turbulence model for the simulations of the wind turbine wakes in a neutral atmospheric boundary layer flow

... Bouras, I., Ma, L., Ingham, D. et al. (1 more author) (2018) An improved kω turbulence model for the simulations of the wind turbine wakes in a neutral atmospheric boundary layer flow. Journal of ...

31

Simulation of the Arctic – North Atlantic Ocean Circulation with a Two-Equation k-omega Turbulence Parameterization

Simulation of the Arctic – North Atlantic Ocean Circulation with a Two-Equation k-omega Turbulence Parameterization

... circulation model is proposed. Like the general circulation model, the turbulence equations are solved using the splitting method by physical ...using k-omega turbulence model embedded to the ...

23

Aerodynamic comparison and validation of rans, K ω, standard K ɛ and urans simulations of flat plate film cooling

Aerodynamic comparison and validation of rans, K ω, standard K ɛ and urans simulations of flat plate film cooling

... a modified kmodel to simulate flat-plate film cooling in order to overcome the typical errors of standard two-equation models in film ...realizable kmodel and the ...

37

Numerical and experimental investigation of impinging turbulent flow of twin jets against a wall

Numerical and experimental investigation of impinging turbulent flow of twin jets against a wall

... as k-", k-" realizable and k-! models was investigated by Fernandez et ...the k-" and k-" realizable models were perfectly in agreement with the experimental results; ...

12

Aerodynamic Design and Blade Angle Analysis of a Small Horizontal–Axis Wind Turbine

Aerodynamic Design and Blade Angle Analysis of a Small Horizontal–Axis Wind Turbine

... (Spalart–Allmaras, K − ε and SST Kω ) and results were compared with experimental ...speeds, K − ε predicted with more accuracy, thus, K − ε is the best between the three ...

15

Show all 10000 documents...

Related subjects