Abstract: The vibration of a pipe system can be caused by internal excitation, e.g., as a result of pump-induced pressure pulsations or external excitation like earthquake. For the investigation of these phenomena, the knowledge ...

Abstract: Real-time control often requires process models that can be solved adequately fast on prescribed control hardware. One class of applications is model predictive control, which can be considered ...

Abstract: Stably stratified shear-driven turbulence is analyzed using the gradient Richardson number, Ri, as the stability parameter. The method overcomes the statistical problems associated with the widely used Monin?Obukhov stability ...

Abstract: This paper presents the results of a large-eddy simulation (LES) of turbulent flow over a channel bed artificially roughened by hemispheres. The Reynolds number of the flow based on the channel depth is 13,680 at a relatively ...

Abstract: n contrast to prior studies showing a positive lapse-rate feedback associated with the Arctic inversion, Boé et al. reported that strong present-day Arctic temperature inversions are associated with stronger negative ...

Abstract: Recently it has been suggested that natural variability in sea surface temperature (SST) patterns over the historical period causes a low bias in estimates of climate sensitivity based on instrumental records, in addition ...

Abstract: Two cloud-resolving mesoscale models, the Karlsruhe Atmospheric Mesoscale Model (KAMM) and the fifth-generation Pennsylvania State University?National Center for Atmospheric Research Mesoscale Model (MM5), were used to ...

Abstract: A thorough understanding of the hydrosphere is crucial for the sustainable evolution of human society and the ecosystem in a rapidly changing world. This understanding can only come from well-trained professionals in the ...