[PDF] Top 20 Shock wave boundary layer interaction studied by high-speed schlieren

... the boundary layer. Inspection of the schlieren images finds that the boundary layer thickness is about ...the boundary layer ... See full document

... the edge of the TBL. Figure 3 shows the velocity differences for three different streamwise locations downstream of the mVGs ob- tained in the present LES, and compared with Wang et al. (2012) measurements. An overall ... See full document

... inherent shock movement result in a net lateral force, which is often referred to as ...These high-magnitude transient loads can be severe enough to fail interfacing components as well as the complete ... See full document

... second-order shock-capturing scheme. The latter is applied in regions around shock waves, identified by a shock sensor sensitized ...sound speed c ... See full document

... As mentioned above, both the toe-in and the toe-out VGs work well to reduce the corner flow separation. However, both VG types also cause additional separations on the bottom wall for toe-in VGs and the sidewall for the ... See full document

... and high-speed streamwise-elongated regions observed within the incoming boundary ...reflected shock foot; a behaviour that can be observed in the instantaneous realizations ...reflected ... See full document

... The boundary-layer profiles at the test section exit plotted in terms of velocity normalized by the boundary-layer edge velocity and in terms of van Driest [14] scaled variables are shown in ... See full document

... normal shock train inside the duct ...the shock goes through subsonic to supersonic isentropically and again decelerates to subsonic speed through a subsequent normal ...each shock and then ... See full document

... turbulent boundary layer are correctly resolved in both simulations, it is clear that the narrow-span configuration does not capture all the ener- getically significant spanwise wavelengths within the ... See full document

... induced boundary layer ...incident shock wave with flat plate and the compression ramp ...at high Mach number condition utilized ramp configuration to product laminar interaction ... See full document

... in shock location and strength were influenced by and depend on the free-stream Mach number and whether it is increasing or ...stronger shock which moved forward, while the accelerating free- stream at the ... See full document

... in shock-induced separation control are studied using large-eddy simulation in this ...the interaction of an oblique shock-wave generated by 8 ° wedge and a spatially-developing Ma = ... See full document

... turbulent boundary layer interacting with a normal shock wave is investigated through direct numerical simulation ...the interaction pressure statistics well compare with canonical ... See full document

... with high level of stagnation pressure rolling around the vortex ...the interaction with the normal shock (can be seen in Figure 11) and it further penetrates underneath the main vortex into the ... See full document

... layer interaction. It also describes the inviscid flow over a compression corner. Chapter 3 describes the simulation methodology. It presents the introduction to the turbulent models used in the ... See full document

... the shock unsteadiness; as the shock wave unsteadiness could originate from the bursting frequency of the incoming boundary ...and high-speed regions, of streamwise lengths ... See full document

... Shock boundary layer interaction flow features are encountered in many high speed engineering devices such as turbine blades, air wings, intake systems for ram jet engines, ... See full document

... The Schlieren system used in the study is a Z-type setup where the continuous illumination source is provided by a Halogen lamp (250W) light source (with an effective light source slit of 1mm width), and uses two ... See full document

... The DNS code has been used over a number of years at the University of Southampton for studies of instability, transition and turbulence in high-speed flows. Here we provide only a short recap of the ... See full document

... The interaction between an oblique impinging shock wave and laminar boundary layer developing on a flat plate has been analysed using a linear stability approach and numerical ... See full document