[PDF] Top 20 Large eddy simulation of shock wave/turbulent boundary layer interactions and its control using Sparkjet

... Fig. 10 gives the instantaneous numerical Schlieren of the controlled flow field at the spanwise middle plane and an enlarged view near the control device. The streamline in the cavity and near the throat is also ... See full document

... active control device ‘‘SparkJet ” and its application in shock-induced separation control are studied using large-eddy simulation in this ...oblique ... See full document

... impinging shock-wave/flat-plate boundary layer interaction is a standard CFD case for two- dimensional (2D) SWTBLI, which represents the simplest SWTBLI configuration for the validation of ... See full document

... unsteady shock wave incident on a soft compliant ...such interactions range from dampening panel and control sur- face loading, reducing aerodynamic drag, and minimizing aeroacoustic fatigue ... See full document

... supersonic turbulent flowfield involving the pseudo-shock waves in an isolator of a supersonic combustion ramjet is computed using two different LES codes which are a high-order upwind fi- nite ... See full document

... numerical simulation (DNS), with the advantages of resolving all scales of fluid mo- tions, has also been adopted for the study of several model ...direct simulation of turbulent ... See full document

... acquired using RANS ...formed using a central, second-order accurate ...Spalart-Allmaras eddy-viscosity model [ Spa92 ] ...RANS simulation to save on computational resources, ultimately ... See full document

... the simulation is 1 mm and other reference parameters are those of the incoming free- stream ...sponge layer in all the three direction, the size of the effective domain, which is marked with red line in ... See full document

... outer shock strengths in excess of the 2-D oblique limit for the H-I SBLI, which occur due to the combined influence of a streamwise area contraction effect and shock-shock ... See full document

... was reduced significantly. In the preliminary calculation of the present flow configuration, the comparison between the iterative numerical scheme (Choi and Moin, 1994) and the present one was made. Usually, three or ... See full document

... This setup is based on the observation data (see Koso- vi´c and Curry, 2000). As was shown in Beare et al. (2006), the LES results obtained under the same conditions with the different models converged with the higher ... See full document

... pressure boundary condition used in the CFD (99.1 kPa). The simulation results follow the general profile trend ...the shock train further ...the shock train in isolator being under-resolved ... See full document

... atmospheric boundary layer where such interesting physics take ...had its start as early as 1948 when Queney published a paper on inviscid flow over hills and mountains [42, ...simulating ... See full document

... surface layer, where the SGS and resolved contributions to the total are also ...data using the new wall model is an evident improvement compared with that by using the Thomas and Williams wall ... See full document

... a turbulent channel flow with a specified fluid ...highly turbulent and the rota- tional dynamics, alignment trends and deposi- tion of anisotropic particles (needles, platelets, near-spheres) in a ... See full document

... the large separation region but do not significantly reduce its ...near-wall boundary layer but increases in the regions between the micro ...the large separation ... See full document

... where is a provisional value for the field , for example, its value at the previous time step (Piomelli and Liu, 1995). The dependence embodied in Eq. (7) gives a simple correlation for . The main advantage of ... See full document

... laminar boundary layer instabilities, where a thin vibrating ribbon along the spanwise direction was placed very near the wall to introduce controlled oscillations in the ...a turbulent channel flow ... See full document

... propagating turbulent premixed propane/air flame is reported using two SGS reaction rate models, namely a dynamic DFSD and the conventional FSD ...the turbulent propagating ... See full document

... Investigations of the geology of Onslow Bay have shown that the introduction of new sediment to this system is negligible due to limited fluvial inputs and minimal sediment exchange with adjacent shelf embayments ... See full document