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Powder and Multiphase Flow Simulator|iGRAF

Powder and Multiphase Flow Simulator|iGRAF

iGRAF is a powder simulation software that can be easily operated by anyone with no prior analysis experience.
By visualizing the results with iGRAF, problems such as segregation and poor mixing can be prevented.
In addition, number of tests can be greatly reduced.
iGRAF was developed by our company under the supervision of Associate Prof. Mikio Sakai of the University of Tokyo.

Problem Solver

A mathematical calculation is not adequate to understand the behavior of the particle.
Hence, simulation is preferred.


What can be achieved through iGRAF simulation,
・Behavior of particle can be traced (able to see through the process)
・Quantitative evaluation of mixing performance


For example, it helps to solve the following problems;
・Segregation
・Poor mixing
・Bridging
・Channeling



iGRAF is not limited to industries, it can be applied to various powder processes.

Improve productivity

・Prototype and experiment testing can be substituted by simulation,
 which in turn, reduces the prototype cost and material cost greatly.


・Simulation also helps to determine the best design operating condition,
 by reproducing the real process.

Visualize the process

Through iGRAF simulation, following behaviors can be examined;

User-Friendly

In order to carry out a simulation, in general

Model in CAD ➡ import file ➡ recognize the shape ➡ set analysis conditions ➡ run the simulation

With iGRAF,

Model in CAD ➡ set analysis conditions ➡ run the simulation

・Since iGRAF is a SOLIDWORKS add-in software (most widely used 3D CAD software),
 process of importing is eliminated
・The particle and fluid automatically recognizes the rigid bodies.
・Handling of model that have complex shapes and free rigid body movement
 (rotation, translation, vibration) can also be easily achieved.

Replicate the real process

・In addition to being able to analyze the powder behavior,
 iGRAF can also analyze the liquid behavior in the airflow that affects the powder.


・Earlier, due to the limitation in number of cores in the computer and usage of
 larger number of particles, powder simulation was inexecutable.


・With Coarse grain model and multi-core parallel technology,
 it has become possible to replicate the real process through iGRAF simulation.

Functions

iGRAF can reproduce complex powder behavior, fluid behavior,
and even complex interaction between powder and fluid.

Application Field

iGRAF is applicable to various powder processes regardless of industry.

System Environment

Contact

KOZO KEIKAKU ENGINEERING Inc.
SBD Engineering Dept.
4-5-3, Chuo, Nakano-ku, Tokyo, 164-0011, Japan
TEL : +81-3-5342-1051
Email : sbdint@kke.co.jp

OS Windows 7, Windows 10
CAD SOLIDWORKS 2018, 2019
ParaView Ver. 4.0.1
GPU SOLIDWORKS specifications recommendation
Memory 16GB or above /32GB~64GB or above is recommended
CPU Intel made/6-core~20-core or above/High clock number is recommended
Hopper Root clogging, bridge, segregation
Conveyor Change in particle discharge rate due to screw shape or rotation speed
Fluidization Powder behavior with respect to airflow rate
Stirring/Mixer Change in the degree of mixing due to material filling method, blade shape,
rotation speed, etc.
Die Filling Uniformity of filling, filling efficiency
Phase flow Powder flow
Powder-gas flow
Powder-liquid flow
Powder-liquid-gas flow
Powder Flow Particle size distribution
Coarse grain model
Non-Spherical effect (Rotational friction)
Cohesive force (Van der Waals and Liquid bridge force)
Fluid Flow Non-Newtonian
Surface tension
High viscosity model
Wettability
Porosity
Coupled Flow DEM-CFD (Powder-liquid/Powder-gas)
DEM-VOF(Powder-liquid-gas)
Rigid body motion Translational motion
Rotational motion
Vibrational motion
Shape recognition Signed distance function (for particle)
Immersed boundary method (for fluid)
Result Evaluation Mixing rate (Lacey's mixing index)
Velocity distribution
Powder distribution
Pressure drop
Void fraction

Analysis Case
解析事例

Analysis Case
解析事例

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シミュレーションに関するイベント・セミナー情報をお届けいたします。

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トレーニング

SBD製品各種の操作トレーニングを開催しております。

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シミュレーションに関する基礎知識や、製品の技術的なノウハウが満載の技術コラムをお届けいたします。

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