Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"Space-time correlations"”.
-
Space-time correlations of intermediate mass fragments emitted in Heavy ion reactions at Fermi energy by intensity interferometry studied with CHIMERA and perspectives
In collisioni tra ioni pesanti alle energie di Fermi (E/A compresa tra 10 MeV/nucleone e 100 MeV/nucleone) sono prodotti sistemi nucleari molto eccitati lontani dalla stabilità che possono decadere in una grande varietà di meccanismi sia dinamici che statistici con scale temporali molto diverse …
-
Error and uncertainty in estimates of Reynolds stress using ADCP in an energetic ocean state
(cont.) To that end, the space-time correlations of the error, turbulence, and wave processes are developed and then utilized to find the extent to which the environmental and internal processing parameters contribute to this error. It is found that the wave-induced velocities, even when filtered, …
-
Measurements in the bimodal region of a wing-body junction flow with a rapidly-scanning two-velocity-component laser-Doppler velocimeter
… in previous studies at this facility. Cross-correlations between the velocity and the surface pressure fluctuations were obtained. Large correlations were found between the u fluctuations (x/t= -0.15, -0.25, and -0.30) near the wall, y/t < 0.05, and the surface pressure fluctuations. The z …
-
Numerical simulation of optical wave propagation through random media
… is straight-forward. We may also deal with space-time correlations using, for example, Taylor's frozen-in hypothesis.
-
High Reynolds Number Turbulent Boundary Layer Flow over Small Forward Facing Steps
… number. The 2 point pressure and velocity space-time correlations show a quasi-periodic structure which begins to develop close to the reattachment and grows in intensity and scale further downstream of reattachment and is responsible for the elevated pressure fluctuations downstream of the …
-
Error and uncertainty in estimates of Reynolds stress using ADCP in an energetic ocean state
… strong wave-induced velocities. To that end, the space-time correlations of the error, turbulence, and wave processes are developed and then utilized to find the extent to which the environmental and internal processing parameters contribute to this error. It is found that the wave-induced …
-
Space-time Description of Supersonic Jets with Thermal Non-uniformity
… using temporally resolved schlieren images. Space-time correlations of the frequency-filtered near-field identified high frequency acoustic waves radiated by compactly coherent turbulent structures and low frequency Mach waves produced by large scale instabilities. In the thermally …
-
Analysis of Two-point Turbulence Measurements for Aeroacoustics
… NACA 0012 half wing, are used to calculate space-time correlation functions and 'pointwise' wave number frequency spectra. Two upwash spectra, calculated for locations in the region of the wake that is roughly homogenous in the spanwise direction, are direct estimates of the full wave number …
-
Complex Equilibrium of Laterally Curved Wakes
… not achieve such a state. While the longitudinal correlations of both wakes are similar in form, in general difference in form and orientation prevailed over all indicating the difference in the turbulent structure of both wakes. Linear stochastic estimation reveals the presence of spanwise and …