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 help or comment on solubilising chlorobutanol in aqueous injections in minimum time possible?

Please suggest solubilisation of chlorobutanol in injections. Tried pH and high temperature. But the issue is of assay drop. If anyone can suggest any solution. Its a commonly used excipient for...

21 February 2021 7,397 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

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

Inexpensive eye tracking hardware + software solution?

Hello, I am starting a project that will require an eye tracking device. I've seen eye tracking hardware + software solutions that are $10,000+ so I am hoping to find one that is significantly...

18 January 2021 8,121 12 View

How to dissociate and culture retinal cells from mouse eyes?

We have a transgenic mouse line in the laboratory from which we are looking to culture retinal cells from. Our experiments indicate we might be able to produce stable cultures from these cells...

03 January 2021 7,200 6 View

How to develop mathematical model for Eye-Gaze tracking system?

Gaze tracking technologies are used in a wide variety of applications. Most gaze tracking systems require a personal calibration process where the user is instructed to gaze at certain points...

03 January 2021 9,675 5 View

How can I measure the bacterial growth in a wet fabric in a petri dish?

I have to measure the growth of the bacteria in a piece of fabric for my senior design project. I don't know how to measure it. The only way that I know is by the naked eye or by the microscope....

23 November 2020 2,897 6 View

Why do high-order modes move with higher speed than low-order modes in the step index optical fiber?

Hi everybody! I am working on my diploma thesis regarding eye endoscope. I would like to know more about the origin of speckles in the multimode fiber. I suppose that the speckles depend on fiber...

08 November 2020 6,313 6 View

Does anyone know of cases of complete eye evulsion (eyes jumping out of their sockets) in ancient or medieval sources?

01 November 2020 1,234 3 View

How many samples/measurements do I need for certain a sensitivity & specificity?

I'm taking some measurements using Raman spectroscopy of healthy pig eye samples using a new excitation wavelength and my supervisor said to choose a sample size to allow for spec/sens of 85%....

01 November 2020 8,611 6 View

When resampling remotely sensed data, which is the best downscaling or upscaling? For instance do you go from 5m pixel to 1km or from 1km to 5m? Why?

For instance if you are using Rapid eye data 5m spatial resolution and Terraclim data 4km in a model, Do you resample to the pixel size of Rapid eye or to the 4km resolution of Terraclim?Please...

06 October 2020 9,478 4 View

2 subsequent saccade and fixation duration after filtering 'unclassified' and 'eye not found' data in Eye tracking study?

My study is to use only fixation and saccade data. But after removing :unclassified' and 'eye not found' data. I come to know there is 2 back to back fixation duration or saccade what I need to...

28 September 2020 9,919 3 View