• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IBM Journal of Research and Development >Drop formation by DOD ink-jet nozzles: A comparison of experiment and numerical simulation
【24h】

Drop formation by DOD ink-jet nozzles: A comparison of experiment and numerical simulation

机译：DOD喷墨喷嘴形成墨滴：实验与数值模拟的比较

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents a comparison of a numerical simulation of drop formation and ejection from a drop-on-demand (DOD) ink-jet nozzle with experimental observations from a particular nozzle-transducer design. In the numerical simulation, first the pressure waves in the transducer chamber are calculated using inviscid compressible flow theory to obtain the pressure history at the inner face of the nozzle plate. Then a viscous momentum integral computation is applied to the nozzle to obtain the velocity history at the outer face of the nozzle plate. Finally, the free surface shape is calculated using finite-difference methods on the one-dimensional equations for an inviscid incompressible free jet with surface tension that uses the nozzle exit velocity history as the driving boundary condition. The computations are compared with drop formation photographs obtained from a particular nozzle-transducer design. Encouraging agreement is obtained, but the numerical model will require added sophistication before detailed agreement can be expected.
机译：本文介绍了按需滴（DOD）喷墨喷嘴的液滴形成和喷射数值模拟与特定喷嘴换能器设计的实验观察结果的比较。在数值模拟中，首先使用无粘性可压缩流动理论计算换能器腔室中的压力波，以获得喷嘴板内表面的压力历史。然后，将粘性动量积分计算应用于喷嘴，以获得喷嘴板外表面的速度历史。最后，使用具有喷嘴张力速度历史作为驱动边界条件的表面张力的无粘性不可压缩自由射流，对一维方程使用有限差分方法来计算自由表面形状。将计算结果与从特定喷嘴换能器设计获得的液滴形成照片进行比较。获得了令人鼓舞的协议，但是在可以期望达成详细协议之前，数值模型将需要进一步完善。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号