How to properly calculate the fluid solid heat transfer between polypropylene matrix and glass fiber in a porous medium?

I'm building a cfx model of thermoplastic pultrusion process on ansys and i have a doubt on how is the proper way to set this parameter in a porous medium

24 February 2021 1,915 1 View

How to properly calculate Interfacial area density in a porous domain?which are possible value for glass fiber?

I'm doing a cfx simulation of a multiphase flow in pultrusion and i set the Interfacial Area density in the heat exchange of a porous medium in this way IAD=Total fiber lateral surface of fiber...

23 February 2021 6,043 1 View

Does the power law behavior can be approximated with Gaussians?

In epidemiology, earthquakes, tokamak disruptions etc., there is possibility of approximations with the sequence of Gaussians and with the appropriate risks ( see my papers in Journal of Fusion...

26 January 2021 5,411 5 View

Does multivalued logic is necessary for artificial intelligence?

Fuzzy logic is multivalued. Does the multivalued logic is necessary for artificial intelligence?

26 November 2020 5,572 6 View

How to work with diversity indexes data while working with aleatory transects inside an area?

Hello! I've used the aleatory transect methodology to survey for mushrooms in six different areas. We've done 4 samples (transects) in which area along 4 months , one per month. I've already...

07 April 2020 9,664 3 View

Does the trend against Machine Learning theory is OK?

In last time there is a trend against Machine Learning ( ML) theory because ML is based mainly on data ( statistics ) and less on physics. Does it is OK.

29 November 2019 9,461 2 View

Variational calculus in curved spaces

Could anyone indicate me a good and simple material that deals with methods for variational calculus in curved spaces? (It does not have to be, necessarily, basic at the level of a General...

08 July 2017 6,159 6 View

Is it possible to model XFEM elements on Abaqus without using damage initiation/evolution for traction separation laws?

I am modeling in Abaqus a metal plate subjected to tension (CT), with an existing crack surface, using XFEM technique. I need to perform cyclic analysis so I need to assign hysteretic response to...

09 May 2017 2,475 5 View

What is a optimal value for error in residuals for cyclic direct analysis in Abaqus?

As one can see from Abaqus Manual (http://130.149.89.49:2080/v6.7/books/usb/default.htm?startat=pt03ch07s02abo09.html#usb-anl-aconvergeintro), the default residual error for the increment...

07 May 2017 803 6 View

How to check if the assigned behaviour of a material (Abaqus) is right?

I am modeling 3D CT specimen on Abaqus. The assigned material is elastic-plastic and damage is defined by separation laws. I tried to check in the results if the elements behaviour is the one I...

03 May 2017 2,934 5 View

Is it possible to set a breakpoint at a specific DYNAMIC instruction using the GNU Debugger (GDB)?

Using GDB, it is straightforward to debug and monitor a target program by setting a break-point at a specific instruction, since the instruction addresses are known. However, we have two...

24 February 2021 1,598 2 View

How to reduce static electricity of powder after lyophilization?

I am working on synthesizing and then purifying peptides using the SPPS system. After purification of the peptide, the peptide powder is obtained using a freeze dryer. When measuring the powder,...

22 February 2021 10,099 5 View

How to obtain the plot of frequency shift w.r.t. pressure in a micro resonator (cc beam) based MEMS pressure sensor in COMSOL?

I need to know how to plot the impact of pressure (0 - 100 kPa) (which is applied on the back side of diaphragm) on the frequency shift caused in the cc beam supported on the diaphragm with...

01 February 2021 5,805 17 View

Can't generate a mash for topology in ANSYS. how to do it?

Created model of steel caisson in space claim. Used a static structure for topology. But there's an error "one or more surfaces cannot be mashed with acceptable quality", " One or more entities...

25 January 2021 893 1 View

What are some properties of a proton in a static B-field?

I have some basic questions about the behavior of a charged particle in a static B-field. 1. Without a B-field, the particle has spin, with random orientation and spin frequency. a) What...

24 January 2021 1,389 3 View

Abaqus CAE: Steps and applying loads using amplitude (static general) - why it doesn't work as expected?

24 January 2021 2,146 2 View

How to view the electrostatic potential value of a Gaussian09W result?

Hi all I am able to view the electrostatic potential surface using Gaussview to see the calculating result from Gaussian09W of a small molecule. However, the strength is represented by color. I am...

19 January 2021 5,448 3 View

Is it possible that insecticides from same group and same mode of action may not show cross resistance?

I could not find any cross resistance between two insecticides from OP group, is this possible?

14 January 2021 9,625 3 View

What mechanism is involved when chitosan is coated on magnetic nanoparticles?

Hello! I am currently working on coating of chitosan on magnetic Fe3O4 nanoparticles. I am wondering how this coating process happened? i.e. through what mechanism that chitosan can be coated on...

13 January 2021 5,657 5 View

How to Simulate the process of self-folding mechanism in Ansys or Hypermesh?

As simulation is mainly effective on static structures or static status, but how to simulate the whole process of self-folding. Please can anyone help me in this regard. Thanks in advance

12 January 2021 1,276 4 View