Can anyone tell me how to inject parcel in DDPM model?and how to write injection file?

02 February 2016 1 6K Report

in DDPM,some articles use parcel ,and define how many particles in one parcel,but how to inject parcels? how to control the number of particle in one parcel? Is the interaction between particles in one parcel taken into account? How to write injection using UDF?

Syed Shah Jehan Gillani

Here is some guideline to do this thing.

http://www.cfd-online.com/Forums/fluent-udf/174918-udf-particle-injection-using-file.html

Badges
Science topic

More Fangfang Sun's questions See All

DDPM+DEM model two particles mix, I cannot make it run well, could anyone give some advice?

Dear all, I am trying to simulate two kind of particle mix from two inlet at gravity and mix,air velocity is 0 at inlet. then monitor how two particles mix together,as in picture. I am using...

07 August 2016 721 2 View

Macro for number of particles in the parcel in fluent DPM

i i am using trying to use dpm drag udf. I need to get the number of particles in the parcel tracking.How can i get this? What is the macro?

06 July 2016 3,673 1 View

How can i know the exact time fluent has run?

If i use different nodes, or memories,simulation for sema case would be different. I want to know exactly how long time fluent run to finish a case. How can i get this time on windows...

05 June 2016 8,028 1 View

What is return of dpm drag udf? Is it different in dirrerent fluent vision?How to get gas properties for calculating dpm drag?

I am trying to write dpm drag udf,but i am confusing about the return i need.Someone tell me it is Cd,however,in fluent 15 mamual,it say that "The value returned to the solver must be...

04 May 2016 5,759 1 View

How to call gas phase properties in dpm udf ? Is there a list of the macros to call gas properties of the cell in which particle is in?

I'm implementing an equation for particle drag. what is the macros to call gas phase properties of the cell in which particle is in. Is there a list for these macros?

04 May 2016 3,366 1 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Is it possible to use the Fused Deposition Modeling (FDM) to additively manufacture interconnected porous structure generation of >100-200 micrometer?

Usually, additive manufacturing techniques like SEBM, SLS, and SLM are used for interconnected porous lattice structure generation with sizes of >100–200 micrometers. Can the Fused Deposition...

09 August 2024 7,892 0 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View

How can I apply boundary conditions in an orthotropic steel deck numerical model using ABAQUS software?

I am trying to simulate vehicular loading on an orthotopic steel deck bridge section in ABAQUS software. The red arrow mark in the attached figure indicates the direction in which the vehicle will...

08 August 2024 718 0 View

Can you suggest reliable sources defining "3D mesh" and "3D city models"?

Dear fellow researchers, I am currently working on a paper where I need to provide a reliable reference that defines and distinguishes between 3D mesh models and 3D city models. Although I am...

06 August 2024 9,986 2 View

How to determine positive-stained cells in FACS? Use isotype or unstained control?

To compare positive and negative cell populations in flow cytometry, should I compare unstained cells with antibody stained cells? Or with the isotype control? Most papers show comparison with...

06 August 2024 6,728 6 View

Why do we equate male and female arousal?

Women, on the other hand, can become physically aroused (increased blood flow in the reproductive organs) without becoming psychologically aroused even in the slightest. (Robert Weiss)

05 August 2024 9,537 2 View

Please explain how the plastic input value should be considered from the true stress-strain curve for the bilinear elastoplastic material model ?

I am working on Abaqus/Explicit(Quasistatic ) for the deformation of the auxetic structure model. Please explain how the plastic input value should be considered from the true stress-strain curve...

05 August 2024 454 3 View

What are the shear and normal stiffness values of an LLDPE liner in 3D numerical modeling of a stockpile?

I am seeking experimental or applicable data for the liner (LLDPE) interface in FLAC3D numerical modeling of a large stockpile. Could you please recommend suitable references? The preferred data...

05 August 2024 3,665 0 View