Table 3 Timestep independence analysis. The definitions of the drag and lift coefficients are provided in Eq. (5)

From: Application of deep reinforcement learning for aerodynamic control around an angled airfoil via synthetic jet

-

-

\(\:\varDelta\:\varvec{t}\:=\:5\times\:1{0}^{-6}\varvec{s}\varvec{e}\varvec{c}\)

\(\:\varDelta\:\varvec{t}\:=\:1{0}^{-5}\varvec{s}\varvec{e}\varvec{c}\)

Error (%)

Off-control

\(\:{\stackrel{-}{C}}_{l}\) (-)

1.7949

1.7943

0.03

\(\:{\stackrel{-}{C}}_{d}\) (-)

0.0794

0.0794

0.00

On-control

\(\:{\stackrel{-}{C}}_{l}\) (-)

1.997

1.989

0.4

\(\:{\stackrel{-}{C}}_{d}\) (-)

0.0794

0.0780

1.7