High-resolution direct numerical simulations (DNS) were carried out to investigate the
nonlinear breakdown process of a three-dimensional wave packet initiated by a short …

View Video Presentation: https://doi. org/10.2514/6.2021-1739. vid Direct Numerical
Simulations (DNS) were carried out in order to investigate the laminar-turbulent transition …

In low disturbance environment, laminar-turbulent transition (LTT) is associated with
excitation of unstable normal modes of small initial amplitudes (receptivity problem). These …

I. Nomenclature αi= amplification rates [m-1] P= Pressure [Pa] f= frequency [kHz] Re=
Reynolds number PSD= Power Spectral Density [Pa2/Hz] L= Length of hollow cylinder [m] …

Highly-resolved Direct Numerical Simulations (DNS) were carried out to investigate the
dominant nonlinear mechanisms of three-dimensional wave packets in a hypersonic …

The total temperature in the hypersonic wind tunnel test can be significantly different from
that in real flight conditions, and this leads to a large discrepancy in the measurement of the …

Hypersonic boundary-layer transition experiments are performed at the von Karman Institute
for Fluid Dynamics in the low-enthalpy Longshot wind tunnel. Freestream Mach numbers are …

F high-speed flows the boundary layer in the near wall region of a flow field has a vital
influence on heat loads, skin-friction drag and flow separation of an aerodynamic body. The …

Traditional stability analysis for hypersonic flows has focused on the development and
relative amplification of a dominant disturbance mode, namely Mack's second mode …

View Video Presentation: https://doi. org/10.2514/6.2023-3557. vid Numerical Computations
are carried out in order to investigate the linear instability mechanisms for a hypersonic …