AEATECHNOLoGY ENGINEERING SOFTWAR Lecture 5 CFX-Build Constraints Patches, Mesh and Analysis 5-1 CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999
CFX-4 Introductory Training (Dec 1999) 5 -1 CFX-4.3 V4.3.1H Lecture 5 Constraints, Patches, Mesh and Analysis CFX-Build
AEATECHNOLoGY ENGINEERING SOFTWAR Steps in Model creation Geometry build wireframe using points, curves, surfaces and solids Constraints -define constraints for solids with area mismatch Patches define boundary conditions(inlet, outlet, walls) Mesh mesh all surfaces Analysis generate internal volume mesh and geo file 5-2 CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999
CFX-4 Introductory Training (Dec 1999) 5 -2 CFX-4.3 V4.3.1H Steps in Model Creation - build wireframe using points, curves, surfaces and solids. - define constraints for solids with area mismatch. - define boundary conditions (inlet, outlet, walls). - mesh all surfaces. -generate internal volume mesh and geo file. Geometry Constraints Patches Mesh Analysis
AEATECHNOLOGY ENGINEERING SOFTWAR Constraints Parent Face used to specify an interface connection between adjacent block faces with unequal areas consistent mesh between two solids Which do not meet at a Whole face Child face 5-3 CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999
CFX-4 Introductory Training (Dec 1999) 5 -3 CFX-4.3 V4.3.1H Constraints used to specify an interface connection between adjacent block faces with unequal areas. consistent mesh between two solids which do not meet at a whole face. Parent Face Child Face
Constraints There are 2 types of constraints in CFX Build Simple 2. Advanced Simple constraints-a single child face constrains the parent face. The child face must lie completely within the parent face Advanced constraints- One or more child faces constrain the parent face Edges on a child face may coincide with edges on the parent face 5-4 CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999
CFX-4 Introductory Training (Dec 1999) 5 -4 CFX-4.3 V4.3.1H Constraints There are 2 types of constraints in CFX Build. 1. Simple 2. Advanced Simple constraints- A single child face constrains the parent face. The child face must lie completely within the parent face. Advanced constraints- One or more child faces constrain the parent face. Edges on a child face may coincide with edges on the parent face
AEATECHNOLoGY ENGINEERING SOFTWAR Creating Constraints ensure existence of aligned points specify corresponding Parent魂Ce parent/child origins Child Face define direction Parent origin points Child origin define direction ratios Parent First Direction determine if parent shape toggle is FIrst Direction RatIo necessary Second Direction Ratio d Use parent shape 5-5 CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999
CFX-4 Introductory Training (Dec 1999) 5 -5 CFX-4.3 V4.3.1H Creating Constraints ensure existence of aligned points. specify corresponding parent/child origins. define direction points. define direction ratios. determine if parentshape toggle is necessary