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

Greetings Doctors, If i did a same experiment for a 2 populations and i need to publish this work in a 2 different papers?

If i did a same experiment for a 2 populations and i need to publish this work in a 2 different papers can i use the same word in the writing of these 2 papers or this would considered as...

04 February 2021 4,648 4 View

How does Scientist/RG community evaluates a case study article and the impact of it on a researcher career?

An article that is published as a case study in the SJR listed journal. How much value is added to a researcher career? How it is evaluated by a scientific researcher/University admission...

02 March 2021 9,661 3 View

Could the "incoming radiation (net radiation)" values be negative?

Could the "incoming solar radiation" values be negative? What is the difference between "global solar radiation" and "incoming solar radiation"? Which one might be measured negative values?

21 February 2021 7,726 9 View

Is it possible to obtain a negative cronbach alpha?

Good evening everyone. If a questionnaire has 4 factors measuring different constructs as for example CAMI questionnaire measuring attitudes toward the mentally ill that has four factors:...

18 February 2021 3,223 3 View

Using SPSS to calculate the global SCL-90-R scores?

Hi, just wondering if anyone can please tell me how you calculate the PSDI and PST global indices of distress (from the Symptom Checklist-90-Revised by Leonard Derogatis, 1994) in SPSS? Many...

08 February 2021 5,243 2 View

What are the latest solving and treatments to the climate change problem?

Dear colleagues, Climate change is one of a global catastrophic risks.Therefore, what are the latest solving and treatments to the climate change problem? Really, your valuable contribution will...

04 February 2021 7,362 33 View

What if we go for one single global currency?

What if we go for one single global currency? than every country has its own currency. Currency exchange commission etc. (Advantages/Disadvantages)

04 February 2021 8,937 3 View

Can I use video interview excerpts from others in public domain (YouTube, Vimeo, etc) for my empirical analysis?

Dear community, I am currently writing my master's dissertation. As a part of the method, I have to include views (interview) of experts for the empirical analysis. The problem is I have not...

31 January 2021 3,438 3 View

Having the moderator continuous or dichotomous? Using MANOVA or the Process macro (Hayes)?

Hi community! Currently finalising my Master thesis research. I manipulated my independent variable to have three conditions. Originally, I proposed a 3(3 conditions of independent v)x2...

30 January 2021 7,821 6 View

Error While Solving Stiff Problems In COMSOL?

Hi, So I am trying to solve a stiff problem using Global ODEs and DAEs. The problem has 32 differential equations and I have inserted all the initial values correctly, however, I keep getting this...

28 January 2021 1,872 3 View

Papers/studies on public policy and translation/implementation of global policy?

Hi all, I am looking for papers/books/studies related to changes in public policy, including theoretical papers, and on the translation/implementation of global policy onto the national level....

25 January 2021 2,242 7 View