Experiments vs. Simulations
CFD gives an insight into flow patterns that are difficult, expensive or impossible
to study using traditional (experimental) techniques
Experiments Simulations
Quantitative description of flow Quantitative prediction of flow
phenomena using measurements phenomena using CFD software
• for one quantity at a time
• at a limited number of points
and time instants
• for a laboratory-scale model
• for a limited range of problems
and operating conditions
• for all desired quantities
• with high resolution in
space and time
• for the actual flow domain
• for virtually any problem and
realistic operating conditions
Error sources: measurement errors, Error sources: modeling, discretizaflow
disturbances by the probes tion, iteration, implementation