AEATECHNOLoGY ENGINEERING SOFTWAR About Convergence a mass source tolerance of 10e-3 x total mass flow rate corresponds to <0. 1% mass imbalance in the system for convergence, residuals for enthalpy and other scalars should also decrease by a reasonable amount, and the monitoring point values not change the flow field cannot be expected to be physically meaningful if convergence has not been achieved CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999)
CFX-4 Introductory Training (Dec 1999) 8 -6 CFX-4.3 V4.3.1H About Convergence - a mass source tolerance of 1.0E-3 x total mass flow rate corresponds to < 0.1% mass imbalance in the system. - for convergence, residuals for enthalpy and other scalars should also decrease by a reasonable amount, and the monitoring point values not change. - the flow field CANNOT be expected to be physically meaningful if convergence has not been achieved
AEATECHNOLoGY ENGINEERING SOFTWAR About Convergence Good convergence Poor convergence I RESIDAL PICYI 1 RESIDUAL PLOT S.A-ECRELEUA3 131 1。i 1 1,。三40 L.3匚c≤ L 二.E+0 CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999)
CFX-4 Introductory Training (Dec 1999) 8 -7 CFX-4.3 V4.3.1H About Convergence Good convergence Poor convergence
AEATECHNOLoGY ENGINEERING SOFTWAR About Convergence For transient problems, a converged solution should be obtained for each time step 1 RESIDUAL PLOT c山 mmmm CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999)
CFX-4 Introductory Training (Dec 1999) 8 -8 CFX-4.3 V4.3.1H About Convergence - For transient problems, a converged solution should be obtained for each time step
AEATECHNOLoGY ENGINEERING SOFTWAR Output File The CFX output file, m# fo, is an asci file which provides numerical data on the calculation The user can browse the output file for important information CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999)
CFX-4 Introductory Training (Dec 1999) 8 -9 CFX-4.3 V4.3.1H Output File The CFX output file, m##.fo, is an ascii file which provides numerical data on the calculation. The user can browse the output file for important information