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

Should we change media after1st 6hrs after plating HUVEC bought from INVITROGEN?it's not recomended by invitrogen.Will DMSO present in stock matter?

We have HUVEC bought from Invitrogen. Cat no -C-003-5c. while first plating the cells we have bought the protocol suggests not to centrifuge the cell with media to remove the DMSO. Should we...

02 March 2021 3,713 2 View

Which fluorescent dye to use for measuring total ROS production?

Is DCFDA appropriate for measuring total ROS production, or can it only detect certain types of ROS? If I want to measure total ROS production, which dye should I use?

01 March 2021 9,447 3 View

Bought HUVEC from Invitrgen.need to revive it.expected it is cryofreezed in DMSO.Do I need to remove the DMSO for plating the cell for the 1st time?

After I cryofreeze the cell do I need to remove the DMSO for culturing the cell for next passages .

28 February 2021 7,738 3 View

Can anyone help with Schistosoma identification?

Can anyone identify what kind of Schistosome species this might be? Morphological features of cercariae and adults resemble Trichobilharzia, though I am fairly new to the field of parasitology...

25 February 2021 7,760 6 View

Are there SDMs that can take in percentage data?

Hi everyone, I am wondering if anyone knows of a species distribution model that can take in percentage data (i.e. presence data with prevalence values attached to them)? The dataset I have...

18 February 2021 7,312 3 View

What is the significance of (isolated) high titers of IgG anti GD1a antibodies in an older patient with polyneuropathy?

Remote history of Campylobacter infection with reactive arthritis, and Spitz nevus (UMP). Arthropod exposure in Zika/ChikV endemic area prior to emergence of length dependent, sensory PN with...

18 February 2021 8,719 1 View

Where would? can? positive charge(vacancy) be when grounded?

Hello I plasma(H2N2) treated Al2O3 plate (edge is connected to ground) and wondered if oxygen vacancy migration on the plate can occurs as electrons escape through edge. Or whatever positive...

15 February 2021 8,118 1 View

ZnS oxidizes to ZnO!!why??

when I put my ZnS solution in the chemical bath, the ZnS oxidizes so there are ZnO peaks appearing because of the reaction with the oxygen in the air, despite the fact that I close the beaker...

14 February 2021 5,778 9 View

Meniscus formation matrigel?

Hey guys, I am currently doing tube formation assay on matrigel coated coverslips, and i wonder if there is any possibility to get rid of the meniscus formation? I have only a small part of the...

09 February 2021 6,979 3 View

How to prepare OH- terminated Si Wafer?

Hi, Folks. I am working on the ALD project to deposit Al2O3 on the Si wafer from TMA and Water. I have struggled with the preparation of OH- terminated Si wafer. I have both Si(1 0 0) and...

08 February 2021 8,792 2 View