Schematic of annulus-conical water jet-assisted laser machining. Fig 1 Topics: Applied Physics, Composite Materials, Fluid Mechanics, Lasers, Materials Science, Nanoengineering Abstract When processing SiC/SiC composites using nanosecond-pulsed lasers, thermal effects such as molten deposition and heat-affected zones (HAZs) will occur. In this study, an annulus-conical water jet (ACWJ) was introduced to assist nanosecond laser machiningContinue reading “SiC/SiC Composites, Pulsed Lasers, and Water…”
Category Archives: Fluid Mechanics
Ice, Snow, Water, Nada…
Figure 1. The Vadret da Tschierva glacier in 1935 (top) and in 2022 (bottom).Photos courtesy of swisstopo, L. Hösli, G. Carcanade, M. Huss, VAW-ETHZ. Topics: Civilization, Climate Change, Fluid Mechanics, Global Warming, Meteorology, Research Glaciers—dynamic masses of ice descending from the mountain tops—have always been fascinating to humankind. They intrinsically belong to the high-alpine environment.Continue reading “Ice, Snow, Water, Nada…”
Nanoscale Knudsen Flow…
Topics: Fluid Mechanics, Materials Science, Nanofluidics, Nanotechnology Gases flow through a porous membrane at ultrahigh speeds even when the pores’ diameter approaches the atomic scale. This finding by researchers at the University of Manchester in the UK and the University of Pennsylvania in the US shows that the century-old Knudsen description of gas flow remainsContinue reading “Nanoscale Knudsen Flow…”
Physics and Nano 