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STAR-CCM+ 6.04 : 02.08.2011
: (Multi-Component Flow Tutorials)
, :
, . ( ) . , . :
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(1 , 293 ) . ( 16 /) 323 . , ( ) . . : - , - .
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: ( ) (Dilution Pipe (Steady Flow) Tutorial)
. 5 / 10 / .
(Importing the Mesh and Naming the Simulation).
STAR-CCM+ , , (New Simulation). . . .ccm.
> > (File > Import > Import Volume Mesh). (Open) //multiphase (doc/tutorials/multiphase), , STAR-CCM+, dilPipe.ccm.
(Open), .
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STAR-CCM+ , (Output window). (Graphics) , .
dilPipeSteady.sim.
(Visualizing the Geometry) , , . , :
> 1 > > 1 > (Scenes > Geometry Scene 1 > Displayers > Geometry 1 > Parts).
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(Properties) (Parts). (List View), Default_Fluid: symmetry plane.
(Apply) (Close).
1 (Geometry Scene 1) 180 , , .
, . , , (baffles), , .
(Renaming Regions and Boundaries)
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. .
> Default_Fluid (Regoins > Default_Fluid) Fluid.
. , , Default_Boundary_Region.
> > Fluid >
Default_Boundary_Region (Regions > Boundaries > Fluid > Default_Boundary_Region) (Wall).
(Scaling the Mesh)
, .ccm . > (Mesh > Diagnostics...), (Output), .
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, 0 5.0 -, 0 5.5 Y-, 0 1.5 Z-. , STAR-CCM+ . 0.0254, .
> (Mesh > Scale Mesh).
(Scale Mesh) ,
Fluid 0.0254 .
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(Apply), , (Close).
(Apply) .
_ (Reset_View) , .
, , (Output).
(Setting up the Models) , , , , , . . (Segregated Flow) K-Epsilon. , , 1 (Physics 1). :
> 1 (Continua > Physics 1) Dilution Pipe.
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:
Dilution Pipe (Select models).
(Physics Model Selection) , , .
, (Three Dimensional) ( (Space)).
(Multi-Component) (Material).
(Non-Reacting) (Reaction Regime).
(Segregated Flow) (Flow)
(Ideal Gas) (Equation of State) (Segregated Fluid Temperature) ( , (Auto-select recommended Physics models) ).
(Steady) (Time). (Turbulent)
(Viscous Regime) K-Epsilon (K-Epsilon Turbulence)
, (Reynolds-Averaged Turbulence).
(Physics Model Selection) :
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(Close). , Dilution Pipe dilPipeSteady , , .
Dilution Pipe > (Dilution Pipe > Models). .
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, (Save).
(Setting Material Properties) . , STAR-CCM+ . : 16 /, 2230 /(*), 0.038 W/m-K 1.175E-5 Pas. , (Setting up the Models).
> > (Models > Multi-Component Gas > Gas Mixture).
(Gas Components) .
(Gas Components) (Select Mixture Components).
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(Select Mixture Components) (Material Databases), (Standard) (Gases), .
(Air) CH4 (),
. ( ).
(Apply), (Close). (Gas Components) , .
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CH4 (Methane). , :
(Gas Components) (Reorder Mixture Components). (Reorder Mixture Components) (Methane) .
(Component
Properties). (Constant)
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:
(Dynamic Viscosity) = 1.175E-5 Pa-s (Molecular Weight) = 16 kg/kg.mol (Specific Heat) = 2230 J/kg-K (Thermal Conductivity) = 0.038 W/m-K
.
(Setting Initial Conditions)
293 .
> > > (Dilution Pipe > Initial Conditions > Species Mass Fraction > Constant)
(Properties) (Value).
(Constant Value)
1.0 (Air).
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.
> (Static Temperature > Constant).
(Properties) 293 .
.
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(Setting Boundary Conditions and Values)
, . , .
> Fluid > > _ > > > (Regions > Fluid > Boundaries > Inner_inlet > Physics Values > Mass Fraction > Constant).
(Value) 0.0, 1.0
> (Static Temperature > Constant).
(Value) 323 .
>
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(Turbulence Intensity > Constant).
(Properties) (Value) 0.1.
(Turbulent Viscosity Ratio) 100 (Velocity Magnitude) 10 /.
.
_ (Outer_inlet) (Physics Values) :
(Species Mass Fraction) = [1.0, 0.0] (Static Temperature) = 293 K (Turbulence Intensity) = 0.1 (Turbulent Viscosity Ratio) =
40 .
pressure Physics Values. :
Mass Fraction = [1.0, 0.0] Static Temperature = 308 K Turbulence Intensity = 0.1 Turbulent Viscosity Ratio = 40
, , . , .
.
(Setting Solver Parameters and Stopping Criteria)
, (under-relaxation factors)
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. (under-relaxation factors) . , . 300 , .
, . (Stopping Criteria) (Maximum Steps).
(Properties) (Maximum Steps), 300.
300 , .
.
(Visualizing the Solution)
. .
(Scenes) > (New Scene > Scalar).
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1 (Scalar Scene 1)
> -Z > +Y (Look Down > -Z > Up +Y).
> 1 > > 1 (Scenes > Scalar Scene 1 > Displayers > Scalar 1).
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(Properties), (Contour Style) (Smooth Filled).
1 (Scalar 1) (Parts).
(Properties) (Parts). (Select All), (Regions) Fluid , Fluid , .
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.
(Scalar Field).
(Function)
(Temperature).
.
(Running the Simulation)
(Run) .
, > (Solution > Run). (Solution), > > (Tools > Toolbars > Solution), . (Residuals), . , (Residuals), . . , . (Graphics) .
1 (Scalar Scene 1) .
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,
(Stop) . , (Run). , , 300 .
, .
(Visualizing the Results)
1 (Scalar Scene 1), .
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, .
> (Mass Fraction > Methane).
()
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.
(Pressure). , , . .
1 (Scalar 1). (Properties)
(Transform) 1 (symmetry plane 1).
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.
(Properties) , (Smooth Shade) .
, , , . , (Transform) (Outline).
Fluid: wall Fluid: symmetry plane (Outline), , .
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.
(Adding Streamlines)
.
1 (Geometry Scene 1) ,
.
dilutionPipeSteady (Derived Parts) > (New Part > Streamline...).
, .
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, (Input Parts) Fluid.
, (Vector Field) (Velocity) .
, (Part Seed)
(Seed Mode).
Fluid: Inner_inlet Fluid: Outer_inlet (Seed Parts).
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. , (Display)
(New Streamline Displayer). :
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(Create), (Close). , , .
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.
: (Velocity: Magnitude).
:
, , , .
, ,
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, (Derived Parts) streamline, (Source Seed).
(Properties) (Randomize). :
.
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(Summary) STAR-CCM+:
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: ( )
(Dilution Pipe (Unsteady Flow) Tutorial)
, ( ) (Dilution Pipe (Steady Flow) Tutorial). , , . - (velocity-time profiles) :
(Loading an Existing Simulation)
STAR-CCM+ , .
> (File > Load Simulation...). (Load Simulation).
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(Browse...) dilPipeSteady.sim, ( ) (Dilution Pipe (Steady Flow) Tutorial).
dilPipeSteady.sim (Open)
.
(Load Simulation).
STAR-CCM+ (Explorer) , ( ) (Dilution Pipe (Steady Flow) Tutorial), dilPipeSteady.
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(Renaming the Simulation)
.
> (File > Save As...), . (Save) , .
dilPipeUnsteady (File Name).
(Save).
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(Explorer), (Properties) (Output) .
(Setting up the Unsteady Flow Model)
( ) (Dilution Pipe (Steady Flow) Tutorial), . , .
(Continua), (Dilution Pipe) (Select models...).
(Phusics Model Selection) :
(Steady) (Enabled Physics models) .
(Time).
( ) (Implicit Unsteady). :
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(Close).
, (Save).
(Creating Field Functions)
. STAR-CCM+ . :
v=10-4t
v=5+2t :
(Tools), (Field Functions) (New).
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1 (User Field Function 1).
(Rename...).
(Inner Inlet Velocity).
(Properties)
(Definition) 1 (User Field Function 1 Definition) ,
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(Outer Inlet Velocity) 5 + 2 * $Time
.
(Setting Boundary Conditions and Values)
, , (Creating Field Functions). :
> Fluid > > _ > > (Regions > Fluid > Boundaries > Inner_inlet > Physics Values > Velocity Magnitude).
(Properties) (Method) (Field Function).
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> (Velocity Magnitude > Field Function).
(Properties)
(Inner Inlet Velocity) (Scalar Function).
> _ (Boundaries > Outer_inlet) , , , . (Outer Inlet Velocity).
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.
(Setting Solver Parameters)
, ( ) (Dilution Pipe (Steady Flow)) 2 . 0.025, , 80 . :
> ( ) (Solvers > Implicit Unsteady).
(Properties) (Time-Step)
0.025.
:
> (Stopping Criteria > Maximum Physical Time).
(Properties)
(Max Physical Time) 2.0
.
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(Autosaving the Simulation)
0.5 . , . :
> (File > Auto Save...).
(Auto Save) , :
(Close).
(Running the Simulation)
, , . 1 (Scalar Scene 1):
(Scenes), 1 (Scalar Scene 1) (Open).
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(Graphics) .
(Mass Fraction of Methane), (Graphics).
, 1 (Scalar
1) (Transform) (Identity).
1 (Outline 1) (Transform) (Identity).
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, > -Z > +Y (Look Down > -Z > Up +Y).
(Run) . , > (Solution > Run). (Solution), > > (Tools > Toolbars > Solution), . (Residuals), . , (Residuals), . (Graphics) .
,
(Stop) . , (Run). , , 2 .
1 (Scalar Scene 1), .
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(Visualizing the Results)
:
2- :
(Scenes) > (New Scene > Vector).
, > -Z > +Y
(Look Down > -Z > Up +Y).
> 1 > (Displayers > Vector 1 > Parts).
(Properties)
(Parts). (Regions), Fluid .
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, :
0.5 :
(File) (Load Simulation...) [email protected].
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:
(Scenes) 1 (Scalar Scene 1), (Graphics) .
0.5 , . , :
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1 (Vector Scene 1).
(opy).
[email protected] (Scenes).
(Paste).
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1 (Vector Scene 1). , (Graphics).
0.5 2 .
.
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(Summary)
STAR-CCM+:
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