Fig. 8From: Compact higher-order gas-kinetic schemes with spectral-like resolution for compressible flow simulationsOne-dimensional acoustic problem: the distributions of density perturbation obtained by compact GKS at t=0.01 (left, 1 period) and t=1.0 (right, 100 periods) with 20 mesh points. The ratio of non-dimensional initial density wavelength to sound speed is \(\lambda _{\rho _{0}}/a_{\infty }=4.8\times 10^{-4}\)Back to article page