Case Definitions - Revision history

Altadyna: /* Inlet/Outlet */

2015-07-24T22:56:07Z

‎Inlet/Outlet

2015-07-24T21:13:28Z

‎Simulation Domain

2015-07-24T21:00:14Z

‎Boundary Conditions

2015-07-24T20:59:42Z

‎Boundary Conditions

2015-07-24T20:54:51Z

‎Initial Conditions

2015-07-24T20:49:47Z

2015-07-24T20:48:24Z

‎Initial Conditions

2015-07-24T18:30:25Z

‎Variable Resolution

2015-07-24T18:20:09Z

2015-07-24T18:08:02Z

‎Global Parameters

← Older revision		Revision as of 22:56, 24 July 2015
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	=Inlet/Outlet=		=Inlet/Outlet=
		+
		+	Polaris CFD supports a variety of inlet and outlet (IO) definitions. When a user defines an IO, the following steps shall be considered
		+	# Specify the IO type, i.e. pick “Inlet” or “Outlet”.
		+	# Pick a category, candidates are “Static pressure”, “Total pressure”, “Total temperature”, “Fixed velocity”, “Fixed mass flux” and “Floating”.
		+	# Specify the combination of variables accordingly. Depending on the IO type and category, as well as which turbulence model is selected, some variables may not be activated for input.
		+
		+	Note that once FT_FIXED_SOURCE is defined at inlet, FT_FLOATING usually is set at outlet. Otherwise the case might be over specified.

	[[File:Setup_io.png\|500px]]		[[File:Setup_io.png\|500px]]

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 =Simulation Domain=
 [[File:Setup_simd.png|500px]]
 [[ Category:Case Setup ]]

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 =Boundary Conditions=
-Boundary conditions are assigned to faces (geometry surfaces). Polaris CFD supports three types of boundary conditions, "Specified temperature", "Specified heat flux" and "Specified velocity". "Specified temperature" and "Specified heat flux" are only effective when heat transfer is activated in the "Global" tab. "Specified velocity" means moving wall boundary condition.
+Boundary conditions are assigned to faces (geometry surfaces). Polaris CFD supports three types of boundary conditions, "Specified temperature", "Specified heat flux" and "Specified velocity". "Specified temperature" and "Specified heat flux" are only effective when heat transfer is activated in the "Global" tab. Only one of them can be enabled at a time.
 [[File:Setup_bc.png|500px]]

← Older revision		Revision as of 20:59, 24 July 2015
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	=Boundary Conditions=		=Boundary Conditions=
		+
		+	Boundary conditions are assigned to faces (geometry surfaces). Polaris CFD supports three types of boundary conditions, "Specified temperature", "Specified heat flux" and "Specified velocity". "Specified temperature" and "Specified heat flux" are only effective when heat transfer is activated in the "Global" tab. "Specified velocity" means moving wall boundary condition.

	[[File:Setup_bc.png\|500px]]		[[File:Setup_bc.png\|500px]]

← Older revision		Revision as of 20:54, 24 July 2015
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	[[File:Setup_ic.png\|500px]]		[[File:Setup_ic.png\|500px]]
		+
		+	It is possible to create an initial condition according to the atmosphere at different elevations. To do that simply enter the elevation and click on "Create IC IO". The corresponding initial condition (pressure and temperature) will be created. User just needs to assign a velocity vector.

	=Boundary Conditions=		=Boundary Conditions=

← Older revision		Revision as of 20:49, 24 July 2015
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	"Surface normal" is a way to control refinement along edges and sharp corners. A smaller value indicates a sharper edge.		"Surface normal" is a way to control refinement along edges and sharp corners. A smaller value indicates a sharper edge.
		+
		+	=Materials=
		+
		+	Users can define different materials, such as gas, fluid and solid, for simulation. Each material must have a unique name and a set of properties.
		+
		+	[[File:Setup_material.png\|500px]]

	=Initial Conditions=		=Initial Conditions=

← Older revision		Revision as of 20:48, 24 July 2015
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	=Initial Conditions=		=Initial Conditions=
		+
		+	Initial condition is a set of the initial values assigned to a region of fluid or solid. In Polaris v3.60 only fluid regions are assigned with initial conditions. Users can define multiple initial conditions and assign them to different fluids.

	[[File:Setup_ic.png\|500px]]		[[File:Setup_ic.png\|500px]]

@@ Line 46: / Line 46: @@
 [[File:Setup_vr.png|500px]]
-Adaptive mesh refinement (AMR) is a favorable feature to activate the module in Polaris CFD solver to dynamically refine the simulation grid based on certain criteria.
+Adaptive mesh refinement (AMR) is a favorable feature to activate the module in Polaris CFD solver to dynamically refine the simulation grid based on certain criteria. For example users can use AMR to refine the grid along a shock wave after it's formed during simulation.
 =Initial Conditions=

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 =Vector=
 Clicking on menu "Setup->Definitions" will bring up the "Vector Definition" dialog as shown below.
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 =Variable Resolution=
 [[File:Setup_vr.png|500px]]
 =Initial Conditions=

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 =Global Parameters=
 [[File:Setup_global.png|500px]]
 =Variable Resolution=