Which model,laminar or turbulent model i must use for CFD analysis for flow in wind tunnel.?

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How to explain the factor that increasing the drag force of perforated body?

Hello How should i explain the increasing of drag force acting on the perforated body.Im comparing the drag force between the surface body with and without holes on it.The result obtained shown...

05 June 2016 2,426 5 View

How to explain the difference between simulation and experiment result?

i comparing result between simulation and experiment.But there are huge different between this result.Which kind of error should i look to justify the difference between this two result?...

05 June 2016 869 26 View

Hi since im new in CFD..can anyone tell me how to do Grid Independence Test step by step?

Ansys Fluent Computational Fluid Dynamic

04 May 2016 7,607 2 View

Quad-map mesh or tri grid mesh,which one is better?

i'm doing a simulation in fluent,but when it come to meshing,people will ask me,why you choose to use grid rectangular mesh instead of tri-mesh,and which one is better to get more accuracy...

04 May 2016 740 4 View

Hi,anyone can help me how to set boundary condition for turbulance inlet and outlet?

I'm making simulation on nacelle lip-skin in the wind tunnel using fluent.Can anybody explain what are the specific value that i need to put in Velocity inlet and Outlet for turbulance intensity...

04 May 2016 4,510 1 View

How to justify that 3D result is more accurate than 2D result?

I'm running simulation both 2D and 3D of the same geometry.The thing is,i got both result not same but i have read somewhere that 3D result is more accurate than 2D result. Can anyone explain how...

04 May 2016 3,655 10 View

Hi, What are the difference between first order upwind and second order upwind in FLUENT?

Simulation of airflow using Fluent

02 March 2016 2,322 5 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 719 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

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

Is it necessary to covary exogenous constructs in a structural model?

I am working on a SEM model where i have 7 latent variables (6 exogenous and 1 endogenous). In AMOS when I co-vary the exogenous constructs, only 2 paths are coming significant out of 6. But when...

03 August 2024 6,028 4 View

How to start a Molecular Dynamics Simulation?

Is it possible to conduct a molecular dynamics simulation to see the effects of a specific carbohydrate on the structure of lipids (e.g., micelle structure)? I am a beginner in this field and plan...

03 August 2024 3,371 3 View