TOWARDS A CFD MODEL OF AIR-NANOFLUID MULTI-DISPERSED BUBBLY FLOWS IN A VERTICAL TUBE

2017 ◽  
Author(s):  
Yang Yuan ◽  
Xiangdong Li ◽  
Jiyuan Tu
Keyword(s):  
Vertical Tube ◽  
Bubbly Flows ◽  
Cfd Model

Modelling and critical analysis of bubbly flows of dilute nanofluids in a vertical tube

2016 ◽  
Vol 300 ◽  
pp. 173-180 ◽  
Author(s):  
Xiangdong Li ◽  
Yang Yuan ◽  
Jiyuan Tu
Keyword(s):  
Critical Analysis ◽  
Vertical Tube ◽  
Bubbly Flows

Microstructure in soft magnetic E3 (S1, Al) (Sendust) alloys

1988 ◽  
Vol 46 ◽  
pp. 770-771
Author(s):  
June D. Kim
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Ternary Phase Diagram ◽  
Vertical Tube ◽  
Vacuum Induction Melting ◽  
Induction Melting ◽  
Soft Magnetic ◽  
Quenching Temperature ◽  
Thin Foils ◽  
Vertical Tube Furnace

Iron-base alloys containing 8-11 wt.% Si, 4-8 wt.% Al, known as “Sendust” alloys, show excellent soft magnetic properties. These magnetic properties are strongly dependent on heat treatment conditions, especially on the quenching temperature following annealing. But little has been known about the microstructure and the Fe-Si-Al ternary phase diagram has not been established. In the present investigation, transmission electron microscopy (TEM) has been used to study the microstructure in a Sendust alloy as a function of temperature.An Fe-9.34 wt.% Si-5.34 wt.% Al (approximately Fe3Si0.6Al0.4) alloy was prepared by vacuum induction melting, and homogenized at 1,200°C for 5 hrs. Specimens were heat-treated in a vertical tube furnace in air, and the temperature was controlled to an accuracy of ±2°C. Thin foils for TEM observation were prepared by jet polishing using a mixture of perchloric acid 15% and acetic acid 85% at 10V and ∼13°C. Electron microscopy was performed using a Philips EM 301 microscope.

CFD MODEL OF AN AUTOMOTIVE CONDENSER AND ITS PERFORMANCE STUDIES UNDER RESTRICTED AIRFLOW CONDITION

2018 ◽  
Author(s):  
Thakor Vatsal ◽  
Vikas Pulinkuzhi ◽  
Santanu Prasad Datta
Keyword(s):  
Performance Studies ◽  
Cfd Model ◽  
Airflow Condition
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