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

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

Protocol for bacterial samples preparation for Scanning Electron Microscopy ?

I want to prepare bacterial samples to observe the bacterial cell lysis by bacteriophage protein (endolysin) through scanning electron microscopy. Please, anyone can share the protocol of...

01 February 2021 1,173 3 View

How can I retrieve FASTA sequence from gene ID or UID of a Gene ? I have GeneBank IDs ?

I treid to use Entrez Batch, but it redirects me to NCBI site. Is there any script of Linux or Python through which I can download Fasta sequence of list of gene ID ?

21 February 2021 7,783 12 View

Defining effective diffusivity in porous zone and non-porous zone?

Hi all, I am working on methanol steam reforming using packed bed for hydrogen generation. I am using FLUENT software for CFD simulation. In reference paper, authors mentioned that effective mass...

10 February 2021 6,104 1 View

Online Shopping Security Survey?

I would appreciate if you answer my DBA research questionnaire. Thank you all in...

10 February 2021 1,990 3 View

Do you think NCC and 3 year service at army base must be compulsory to make the students loyal and discipline to the nation?

Decipline and loyalty for nation is the need of today.

09 February 2021 6,928 3 View

Professional editing and proofreading services?

08 February 2021 7,901 6 View

Would you like to participate in our study by completing the questionnaire?

04 February 2021 7,661 1 View

How is it possible to rank variables using Likert scale?

Hello Everyone, I have a questionnaire of a 3-point Likert scale for an overall evaluation for a service, and several detailed attributes evaluation of that service. For example: Overall...

31 January 2021 9,612 8 View

Can't run my IPMSM drive system with DC-supply higher than 125 V. Have anyone had similar problem?

Hey, I try to run my 4 pole IPMSM with PWSVM and use a typical controller with PI-controller with a current loop and speed loop. When I run my system with DC-supply 100 V with a steady-state speed...

28 January 2021 7,354 8 View

What is the best and affordable method to make and distribute a survey?

What is the best and affordable method for higher education student to build and distribute a survey in the United States of America with consideration of the following points: There are no...

23 January 2021 9,342 2 View

I am trying to run a simulation on LS-Dyna and I am facing the error below with Nodal rigid constraints. Can anyone tell how to fix it?

*** Error 20393 (STR+393) Nodal rigid body ID 85000010 contains node ID 83500180 already used in a rigid body/nodal rigid body definition.

20 January 2021 2,019 1 View