نتایج جستجو برای: schlieren imaging
تعداد نتایج: 457717 فیلتر نتایج به سال:
The schlieren method of measuring far-field focal spots offers many advantages at the Shenguang III laser facility such as low cost and automatic laser-path collimation. However, current methods of far-field focal spot measurement often suffer from low precision and efficiency when the final focal spot is merged manually, thereby reducing the accuracy of reconstruction. In this paper, we introd...
Abstract Sound is an interesting topic for physics lessons at all ages. However, it difficult to illustrate this ubiquitous phenomenon and many models do not adequately represent the properties of sound thus promote unwanted conceptions. The experiment presented here avoids by visualising itself with help schlieren technique. For purpose, easily reproducible variant a setup presented. simple de...
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BACKGROUND For the design and characterization of ultrasonic particle manipulation devices the pressure field in the fluid cavity is of great interest. The schlieren method provides an optical tool for the visualization of such pressure fields. Due to its purely optical nature this experimental method has got some unique advantages compared to methods like particle tracking. RESULTS A vertica...
The direct injection of gaseous fuels involves the presence of under-expanded jets due to the high pressure-ratios and the strong gas compressibility. Understanding the physical development of such processes is essential for developing Direct Injection (DI) devices suitable for application in internal combustion engines fueled by methane or hydrogen. In this work a coupled experimental-numerica...
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