养 FLUENT Fluent User Services Cente Introductory GAMBIT Training vww. fluentusers com GAMBIT 2.3 June 2006 Geometry Operations in GAMBIT 2-1
2-1 © 2006 Fluent Inc. Fluent User Services Center www.fluentusers.com Introductory GAMBIT Training GAMBIT 2.3 June 2006 Geometry Operations in GAMBIT
养 FLUENT Fluent User Services Center Introductory GAMBIT Training vww. fluentusers com GAMBIT 2.3 June 2006 Introduction Objective Create and mesh the fluid region for flow problems and solid regions for heat transfer(and structural analysis for FIDAP Users) Typically accomplished by constructing and working with lower order entity objects and volume primitives ◆ Terminology: Lowest order Vertex -A point in space Edge -a curve that is defined by at least 1 vertex(in the case of 1 vertex, the edge forms a loop Face-A surface(not necessarily planar) bounded by at least 1 edge (except for sphere and torus) Highest order Volume-A geometric solid, can be thought of as an air-tight set of connected faces 2006 Fluent Inc
2-2 Fluent User Services Center www.fluentusers.com © 2006 Fluent Inc. Introductory GAMBIT Training GAMBIT 2.3 June 2006 Introduction ◆ Objective: ⚫ Create and mesh the fluid region for flow problems and solid regions for heat transfer (and structural analysis for FIDAP Users). ⚫ Typically accomplished by constructing and working with lower order entity objects and volume primitives. ◆ Terminology: ◼ Vertex – A point in space. ◼ Edge – A curve that is defined by at least 1 vertex (in the case of 1 vertex, the edge forms a loop). ◼ Face – A surface (not necessarily planar) bounded by at least 1 edge (except for sphere and torus). ◼ Volume – A geometric solid, can be thought of as an air-tight set of connected faces. Lowest order Highest order
养 FLUENT Fluent User Services Center Introductory GAMBIT Training vww. fluentusers com GAMBIT 2.3 June 2006 Introduction Color by entity Vertices and edges are colored according to the highest order entity to which they are connected Coloring scheme Vertex: White Edge Yellow ■Face Blue Volume: Green Color by connectivity Vertices and edges are colored according to the number of edges and faces to which they are connected White: Connected to O parent entities Orange: Connected to 1 parent entity Blue Connected to 2 parent entities Magenta: Connected to 3 or more parent entities
2-3 Fluent User Services Center www.fluentusers.com © 2006 Fluent Inc. Introductory GAMBIT Training GAMBIT 2.3 June 2006 Introduction ◆ Color by entity ⚫ Vertices and edges are colored according to the highest order entity to which they are connected. ⚫ Coloring scheme: ◼ Vertex: White ◼ Edge: Yellow ◼ Face: Blue ◼ Volume: Green ◆ Color by connectivity ⚫ Vertices and edges are colored according to the number of edges and faces to which they are connected: ◼ White: Connected to 0 parent entities ◼ Orange: Connected to 1 parent entity ◼ Blue: Connected to 2 parent entities ◼ Magenta: Connected to 3 or more parent entities
养 FLUENT Fluent User Services Center Introductory GAMBIT Training vww. fluentusers com GAMBIT 2.3 June 2006 Introduction Undo/ redo Undo 10 levels of undo by default Applies to all geometry, meshing, and zoning commands Rolling the mouse over any button provides a description of any command This also applies to the Undo/Redo buttons Number of undo/redo levels controlled by the variable global undo LEVEL Left-click to execute the visible button operation Right-click to select between undo/redo
2-4 Fluent User Services Center www.fluentusers.com © 2006 Fluent Inc. Introductory GAMBIT Training GAMBIT 2.3 June 2006 Introduction ◆ Undo/Redo: ⚫ 10 levels of undo by default. ◼ Applies to all geometry, meshing, and zoning commands. ◼ Rolling the mouse over any button provides a description of any command. This also applies to the Undo/Redo buttons. ◼ Number of undo/redo levels controlled by the variable global.undo.LEVEL ⚫ Left-click to execute the visible button operation. ⚫ Right-click to select between undo/redo
器 FLUENT Fluent User Services Center Introductory GAMBIT Training vww. fluentusers com GAMBIT 2.3 June 2006 The Right Answer in CFD Real, Virtual, and Faceted Geometry Three kinds of geometry in GAMBIT Real Defined by the acis library of geometry creation/modification routines s geometry defined by mathematical formulae Virtual A library of routines(created by FLUEnt which provides additional functionality by redefining the topology Geometry is defined using references to one or more real entities(referred to as host entities) Two objects that share the same underlying geometry but have different topology Faceted geometry Treated like virtual geometry Derived from importing a mesh or faceted geometry into GAMBIT
2-5 Fluent User Services Center www.fluentusers.com © 2006 Fluent Inc. Introductory GAMBIT Training GAMBIT 2.3 June 2006 Real, Virtual, and Faceted Geometry ◆ Three kinds of geometry in GAMBIT: ⚫ Real ◼ Defined by the ACIS library of geometry creation/modification routines. ◼ Geometry defined by mathematical formulae. ⚫ Virtual ◼ A library of routines (created by FLUENT) which provides additional functionality by redefining the topology. ◼ Geometry is defined using references to one or more real entities (referred to as host entities). ⚫ Faceted geometry ◼ Treated like virtual geometry. ◼ Derived from importing a mesh or faceted geometry into GAMBIT Two objects that share the same underlying geometry but have different topology