Why the results when using wall thickness and when using shell conduction are different in ansys fluent?

Actually, I am running cfd simulation for a heat exchanger which has two fluids one hot and other one is cold fluid. there is a solid domain between them, which I removed and instead I have used...

01 March 2021 9,537 2 View

How much pressure we can reduce at the outlet to avoid Reverse Flow?

I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...

01 March 2021 6,985 3 View

Does anyone know to clarify these changes?

01 March 2021 1,290 2 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Can Virtual Servers (remote dekstop manager) run heavy ANSYS Fluent CFD simulation ?

I have a virtual machine. My host Pc specs are not that good thats why i went for virtual servers. so basically my host pc has 8gb of ram with nvidia quadro k2200 4Gb DDR5 GPU ,processor intel...

01 March 2021 8,415 1 View

Can anyone suggest me the best way for Regression analysis of Accidents?

Dear Altruist, I want to make a regression analysis based on accident data. But I am not finding the necessary information about what type of regression is more applicable for analysis accident...

23 February 2021 9,956 3 View

What is the difference between PBE and PBEsol functional?

Hello, I am a 3rd year chemistry student and I'm writing my project report on computational chemistry. does anyone know how PBEsol improves upon the PBE functional? Thanks in advance

19 February 2021 7,068 4 View

Can someone help me with this error that I am getting while estimating a VAR model in R?

I am using annual time series data to estimate a VAR model in R. However, when I run the command to find the optimal lag length, I get the following error: Fehler in VARselect(data, lag.max = 10,...

18 February 2021 9,647 3 View

In your experience what is the difference between G.652D and G.655D optical fiber. In field and in lab?

In our current era there is a big confusion about the usage of G.652 and G.655 optical fiber cable. Theoretically G.655 is much better than G.652 but the operator feel that G.652 is giving almost...

11 February 2021 4,006 8 View

How many dilutions are good enough for TCOD50 of SARS-CoV-2?

I started with 10e-1 till 10e-10. But when I searched for online calculator they mostly consider 5 dilutions. Is there a reason behind it or I should make less dilutions?

11 February 2021 5,839 3 View

Is it reasonable to use stress boundaries to simulate situations with tectonic stress in FLAC3D?

Dear all I want to build a small fault model, considering the tectonic stress, the horizontal stress is relatively high.Is this the case where you can only use the stress boundary.This is a fixed...

13 July 2020 450 3 View

Modeling a direct shear test using FLAC3D V6?

Dear researchers I hope that you are having good and healthy days I am modeling a direct shear test using FLAC3D V6, the model actually works properly when it assigned to the elastic model,...

01 April 2020 1,049 10 View

Apply surface load due to traffic in numerical model of tunnel?

I simulated the shield driven-tunnel by FLAC 2D, in which step of numerical model must be applying the traffic loads of ground surface (20 Kpa)? the traffic loads of ground surface change along...

13 November 2019 3,936 3 View

Apply surface load due to traffic in numerical model of tunnel?

I simulated the shield driven-tunnel by FLAC 2D, in which step of numerical model must be applying the traffic loads of ground surface (20 Kpa)? the traffic loads of ground surface change along...

10 November 2019 8,162 2 View

Are there differences in the numerical modeling of stone columns and piles ?

Dear all, What are the factors to be taken into consideration when modeling stone columns in FLAC 3D? Are there differences between the modeling of stone columns and piles?

09 October 2019 8,892 4 View

Settelment of the tunnel Longitudinal Cross section?

There are three primary areas of ground movement towards a pressurised TBM: at the face, along the shield skin and at the tail void -(In the attached figure). Can the maximum surface Settelment of...

14 September 2019 9,930 3 View

Settelment of the tunnel Longitudinal Cross section?

There are three primary areas of ground movement towards a pressurised TBM: at the face, along the shield skin and at the tail void -(In the attached figure). Can the maximum surface Settelment of...

08 September 2019 376 3 View

Should the effective stresses be constant during the effective stress numerical analysis?

Assuming running the undrained effective stress analysis in FLAC3D via Config FLUID using the effective stiffness and strength parameters, are we expecting the constant effective stresses in the...

15 July 2019 6,096 3 View

Should the effective stresses be constant during the effective stress numerical analysis?

Assuming running the undrained effective stress analysis in FLAC3D via Config FLUID using the effective stiffness and strength parameters, are we expecting the constant effective stresses in the...

06 July 2019 8,943 3 View

How can I define a line in my grid for printing my measured values in flac3D?

I know in flac2D it is the command " print sxx line (x_start,y_start) (x_end,y_end) point table number_1", but I can't find this command in flac3D.. I need to define a line in the grid of a...

06 July 2019 5,459 1 View