top of page
  • hengxiao

Conditioning of Data-Driven Models

Updated: Apr 28, 2022

Journal of Fluid Mechanics 869, 553-586, 2019 J.-L. Wu, H. Xiao, R. Sun, and Q. Wang

A small error in Reynolds stress can lead to large errors in the mean velocity when solving the RANS equations because of poor model conditioning. We derive a local condition number as an indicator of conditioning and demonstrate that this number explains the error propagation from Reynolds stress to mean velocity with examples.


Recent Posts

See All


bottom of page