scholarly journals Stir Casting Process Simulation by Computational Fluid Dynamics for uniform Nano particles distribution in Al Semi Solid Metal

2018 ◽  
Vol 377 ◽  
pp. 012191
Author(s):  
K Rajendra ◽  
M V Sekhar Babu ◽  
P Srinivas
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Process Simulation ◽  
Casting Process ◽  
Stir Casting ◽  
Solid Metal ◽  
Nano Particles ◽  
Semi Solid ◽  
Casting Process Simulation

Investigation of Crystallization in a Jet Y-Mixer by a Hybrid Computational Fluid Dynamics and Process Simulation Approach

2005 ◽  
Vol 5 (3) ◽  
pp. 959-968 ◽  
Author(s):  
Young-Jae Choi ◽  
Sung-Taik Chung ◽  
Min Oh ◽  
Hyoun-Soo Kim
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Process Simulation ◽  
Simulation Approach

The Simulation of RTM Based on FLUENT

2012 ◽  
Vol 538-541 ◽  
pp. 873-876
Author(s):  
Yin Fei Dong ◽  
Xue Jian Jiao
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Velocity Field ◽  
Process Simulation ◽  
Pressure Field ◽  
Resin Transfer Moulding ◽  
Transfer Moulding

RTM is also called resin transfer moulding, it is one of the leading technology in the field of FRP. With the help of FLUENT, a powerful computational fluid dynamics software, we have finished the process simulation of filling the mould. In the process simulation, the flow striker, pressure field and velocity field are clearly showed. And they can describe the process of RTM effectively.

A general framework for the integration of computational fluid dynamics and process simulation

2000 ◽  
Vol 24 (2-7) ◽  
pp. 653-658 ◽  
Author(s):  
F. Bezzo ◽  
S. Macchietto ◽  
C.C. Pantelides
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Process Simulation ◽  
General Framework

scholarly journals Experimental Determination of the Parameters for Modelling Semi-Solid Processing

2006 ◽  
Vol 116-117 ◽  
pp. 16-23
Author(s):  
H.V. Atkinson
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Numerical Modeling ◽  
Steady State ◽  
Processing Route ◽  
Flow Parameters ◽  
Properties Of Materials ◽  
Semi Solid ◽  
Rapid Transients

The numerical modeling of semi-solid processing requires data on the rheological properties of materials. This data is often obtained by rheometry but there are difficulties with characterizing high solid fractions, where the torque which can be exerted with the rheometer is insufficient. A number of other methods for measuring the flow parameters, including compression between platens, have been utilized. The various methods will be reviewed in this paper. Computational fluid dynamics modelers have often used data from steady state experiments but it is the behaviour during rapid transients which is more relevant to the actual semi-solid processing route.

Floating Behavior of Entrapped Gas in Semi-Solid Metal

2017 ◽  
Vol 898 ◽  
pp. 1254-1260
Author(s):  
Hong Xing Lu ◽  
Qiang Zhu ◽  
Da Quan Li ◽  
Fan Zhang
Keyword(s):  
Solution Heat Treatment ◽  
Die Casting ◽  
Casting Process ◽  
Acceptance Rate ◽  
Solid Metal ◽  
High Quality ◽  
Casting Technology ◽  
Die Casting Process ◽  
Semi Solid ◽  
Die Castings

Semi-solid die casting technology has great advantages at defects control and has been successfully used to produce high quality aluminum alloy components for several years. In this process, semi-solid metal with high apparent viscosity and low plunger velocity are used to avoid surface turbulence which is the main source of entrapped gas in conventional die casting processes. But, entrapped gas still has other sources, such as melting, pouring, surface flooding and confluence weld. Solution heat treatment is always used to strengthen semi-solid die castings. The entrapped gas leads to blister defects, which directly decreases the acceptance rate of semi-solid die castings. So, the entrapped gas is still a serious issue in semi-solid die casting process. We studied the floating behavior of entrapped gas bubble in semi-solid metal. Two floating models were established for gas bubbles with different sizes. These models were used to analyze the possibility of entrapped gas escaping from semi-solid metal in casting practice. The results showed that entrapped gas from feed billet could not escape from the semi-solid metal in the casting process of impeller, which was proved by experiment results. These results emphasized the importance of clean melt and semi-solid metal. Some advices were given at last for avoiding or removing the entrapped gas in semi-solid die casting process.

Computational Fluid Dynamics (CFD) Simulation of Liquid-Liquid Mixing in Mixer Settler

2012 ◽  
Vol 57 (1) ◽  
pp. 173-178 ◽  
Author(s):  
M. Shabani ◽  
A. Mazahery
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Process Simulation ◽  
Chemical Process ◽  
Cfd Simulation ◽  
Complex Geometry ◽  
Physical Parameters ◽  
Cfd Model ◽  
Liquid Mixing ◽  
Computational Fluid Dynamics Cfd

Computational Fluid Dynamics (CFD) Simulation of Liquid-Liquid Mixing in Mixer Settler Mixer-settlers are widely used inmetallurgical, mineral and chemical process. One of the greatest challenges in the area of hydrometallurgy process simulation is agitation made by impeller inside mixer-settler which yet presents one of the most common operations. Computational fluid dynamics (CFD) model has been developed to predict the effect of different physical parameters including temperature and density on the mixing characteristics of the system. It is noted that non-isotropic nature of flow in a mixer-settler, the complex geometry of rotating impellers and the large disparity in geometric scales present are some of the factors which contribute to the simulation difficulty. The experimental data for different velocity outlet was also used in order to validate the model.

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