AEATECHNOLoGY ENGINEERING SOFTWAR Lecture 1 Introduction CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999)
CFX-4 Introductory Training (Dec 1999) 1-1 CFX-4.3 V4.3.1H Lecture 1 Introduction
AEATECHNOLOGY ENGINEERING SOFTWAR Performing a CFD Analysis Define the problem Geometry Domain in which the governing equations will be solved and solutions obtained Creation of multi-block structure Grid The geometry is split into many small volumes or cells forming a grid or mesh Conservation of mass, momentum, energy, etcare satisfied locally in each cell >U.VW.PT etc are defined at the center of each cel i. e collocated grid CFX-4 grids are body-fitted and"multi-block CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999)
CFX-4 Introductory Training (Dec 1999) 1-2 CFX-4.3 V4.3.1H Performing a CFD Analysis Define the problem - Geometry > Domain in which the governing equations will be solved and solutions obtained > Creation of multi-block structure. - Grid > The geometry is split into many small volumes or cells forming a grid or mesh > Conservation of mass, momentum, energy, etc. are satisfied locally in each cell. > U, V, W, P, T, etc. are defined at the center of each cell, i.e. collocated grid > CFX-4 grids are “body-fitted” and “multi-block
AEATECHNOLoGY ENGINEERING SOFTWAR Performing a CFD Analysis Boundary conditions Needed on all external surfaces of geometry Physical considerations Fluid properties such as density and viscosity Selection of models such as k-e for turbulence combustion models etc CFX-4 CFX4.3V4.3.1H Multi-block grid Introductory Training(Dec 1999)
CFX-4 Introductory Training (Dec 1999) 1-3 CFX-4.3 V4.3.1H Performing a CFD Analysis - Boundary conditions > Needed on all external surfaces of geometry. - Physical considerations > Fluid properties such as density and viscosity > Selection of models such as k-e for turbulence, combustion models, etc. Multi-block grid
AEATECHNOLOG ENGINEERING SOFTWAR Performing a CFD Analysis Calculate the flow Flow solver options T4· Moco"bDI B λ函 CLUTEVILUE and parameters have ENTHALP to be defined Governing equations PRESLEE ELOCITY are solved V VELOCITY UVELOCITY pG必 Dynamic monitoring LTE就ATN西 of solution history Convergence has to 」欧 ESIDUAL FLOT be obtained SCALED EELDUALS ENTHALPY ETaLON UVELOCITY CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999)
CFX-4 Introductory Training (Dec 1999) 1-4 CFX-4.3 V4.3.1H Performing a CFD Analysis Calculate the flow - Flow solver options and parameters have to be defined - Governing equations are solved - Dynamic monitoring of solution history - Convergence has to be obtained
AEATECHNOLoGY ENGINEERING SOFTWAR Performing a CFD Analysis Examine the results Either in numerical or graphical format CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999)
CFX-4 Introductory Training (Dec 1999) 1-5 CFX-4.3 V4.3.1H Performing a CFD Analysis Examine the results - Either in numerical or graphical format