Numerical Computations of Turbulence Amplification in Shock-Wave Interactions

Shock-Refracted Acoustic Wave Model for Screech Amplitude in Supersonic Jets

“…Generally speaking, the accuracy of the linear theory appears questionable for weak shocks, strong disturbances, and incident angles close to the critical angle [39]. With regard to the incident waves of fmite amplitude, numerical Euler simulations of Zong et al [39] with amplitudes ranging from 0.01 to 0.5 suggest that the linear theory surprisingly remains reliable to extraordinarily large amplitudes.…”

“…With regard to the incident waves of fmite amplitude, numerical Euler simulations of Zong et al [39] with amplitudes ranging from 0.01 to 0.5 suggest that the linear theory surprisingly remains reliable to extraordinarily large amplitudes.…”

A Theoretical Basis for the Scaling Law of Broadband Shock Noise Intensity in Supersonic Jets

“…for incident acoustic waves, and roughly 60 deg. for incident vorticity and entropy waves [28]. Linear theory predicts that most transmission and generation coefficients are peaked near the critical angle.…”

“…In general, any plane wave (acoustic, vorticity/shear, or entropy) interacting with a shock undergoes transformation and at the same time generates the other two waves (Zang et al [28]). In a uniformly moving fluid, a general fluctuation can be decomposed into acoustic, entropy, and vorticity waves (perturbations).…”

Shock-Turbulence Interaction: Annotated Reference

“…A revised view of shock wave boundary conditions for deforming, moving shocks may be formed from the work of M. Bonnet (1988), of LAe (1994 and the shock dynamic differential geometry research of Emanuel (1976) Useful numerical techniques and results that will be discussed later includes the influential suggestions from work of Zan,, u Kopriva, and Hussaini (1983) and of Zang, Hussaini, and Bushnell (1984).…”