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Designing an Experimental Device for Swinging Excitation Spray Cooling
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作者 Long Huang Yujiao Wang 《Journal of Electronic Research and Application》 2024年第2期151-157,共7页
In this paper,we introduce the design principle of the oscillating excited spray cooling experimental device.We then designed an oscillating excited spray cooling experimental device.By using the device,the swaying mo... In this paper,we introduce the design principle of the oscillating excited spray cooling experimental device.We then designed an oscillating excited spray cooling experimental device.By using the device,the swaying motion can be realized through the control system,and the motion of the droplet under different vibration frequencies can be observed.By measuring the liquid flow rate and pressure,the changes in liquid flow rate,pressure,and temperature with time under different vibration frequencies were studied.The trajectory of the droplet and the temperature distribution of the droplet under different vibration frequencies could be observed.The device has a simple structure,is easy to control,and can achieve continuous observation of the spray cooling process. 展开更多
关键词 oscillating excitation spray cooling Experimental device design
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Thermal Analysis of a Novel Oil Cooled Piston Using a Fluid-Solid Interaction Method 被引量:4
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作者 Dehui Tong Shunshun Qin +2 位作者 Jingguo Lin Jingyang Sun Yuping Hu 《Fluid Dynamics & Materials Processing》 EI 2021年第4期773-787,共15页
Thermal load has a vital influence on the normal operation and service life of diesel engines.In this study,the thermal load and oil-cooling effect on diesel engine pistons were investigated by means of computational ... Thermal load has a vital influence on the normal operation and service life of diesel engines.In this study,the thermal load and oil-cooling effect on diesel engine pistons were investigated by means of computational fluid dynamics.In particular,the flow and heat transfer characteristics of the cooling gallery were determined during the oscillation of the piston.Moreover,the temperature field distribution of the piston with and without the cooling gallery were compared.The results revealed that the cooling gallery has a prominent effect on reducing the thermal load on the piston crown and piston lands.To fully understand the oscillating heat transfer effect related to the cooling gallery and verify the accuracy of the calculation,the numerical results were also compared with temperature values experimentally measured at key positions of the piston.The measurements were found to be consistent with the calculation results within an acceptable error range,which proves the rationality and accuracy of the mathematical and numerical models used. 展开更多
关键词 Diesel engine piston thermal load cooling gallery CFD oscillating cooling
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Research on the detuning system of a cooling electron beam for the dielectronic recombination experiment at CSRm
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作者 孟令杰 马新文 +11 位作者 V.V.Parkhomchuk 杨晓东 V.B.Reva 李杰 冒立军 马晓明 晏太来 夏佳文 原有进 徐瑚珊 杨建成 肖国青 《Chinese Physics C》 SCIE CAS CSCD 2013年第1期117-124,共8页
The storage ring equipped with an electron cooler is an ideal platform for dielectronic recombination (DR) experiments. In order to fulfill the requirement of DR measurements at the main Cooler Storage Ring, a detun... The storage ring equipped with an electron cooler is an ideal platform for dielectronic recombination (DR) experiments. In order to fulfill the requirement of DR measurements at the main Cooler Storage Ring, a detuning system for the precision control of the relative energy between the ion beam and the electron beam has been installed on the electron cooler device. The test run using 7.0 MeV/u C6+ beam was performed with recording the Schottky spectra and the ion beam currents. The influence of pulse heights and widths of the detuning voltage on the ion beam was analyzed. For the small pulse height, the experimental results from the Schottky spectra were in good agreement with the theoretical results. The frequency shift in the Schottky spectra was significantly reduced for the short pulse width. For the large pulse height, an oscillation phenomenon was observed and some effective ways to reduce the oscillation were pointed out. The detailed description of the phenomenon and the theoretical model based on the plasma oscillation was discussed in this paper. The overall results show that the new detuning system works properly, and could fulfill the requirements of future DR experiment. 展开更多
关键词 detuning system electron cooling Schottky spectrum plasma oscillation dielectronic recombination
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