Computational Analysis of Fluid Flow Characteristics on Syringe

• Main Author: Wisely (NIM : 13113055), Alpin
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/20977
• Institution: Institut Teknologi Bandung

The application of fluid from large scale to micro scale has been used in vast range of industries such as pharmaceutical industry, medical and engineering. One of the general application fluid is by using syringe. Computational analysis with CFD (Computational Fluid Dynamics) can simulate the characteristic of micro flow in syringe to predict the flow more accurate. <br /> <br /> This undergraduate thesis consists of modeling and simulation of syringe flow. The simulation is divided into two: simulation of flow inside of syringe and simulation of fountain flow from a syringe. The experiment will vary the injection time, needle size, syringe size and the fluid. <br /> <br /> Increasing the injection time (reduce flow rate) dan enlarge needle size will decrease the pressure for injection. For fountain flow from syringe, the increase of Reynolds and Froude number is proportional with mixing and turbulence effect. Small Atwood number (At = 0 and At = 0,06) will create a relatively stable fountain flow and at big Atwood number (At = 0,98) the flow will be rapid and turbulent. From the simulation, can be said that the height of transition fountain flow is: (a). &#119885;&#119898;&#119883;&#119894;&#119899;&#8776;215&#119865;&#119903;&#119909;1,3, for Frx &#8804; 7, discrepancy 19%; (b). &#119885;&#119898;&#119883;&#119894;&#119899;&#8776;1,25&#119865;&#119903;&#119909;, for Frx &#8805; 7, discrepancy 34%. Further study will be extended to the effects of surface tension in future.