How to approach CFD simulation results of a flow past a cylinder?

Hi all, I'm doing a transient simulation of flow past a rectangular cylinder close to the free surface. As far as I'm concerned, the common practice is to discard the initial stages of the...

25 February 2021 1,348 3 View

How to calculate time-averaged fields from Ansys CFX solver?

I would appreciate any comments on the following problem. I need to calculate mean fields (e.g. pressure, velocity and vorticity), for which I activate Trn Stats tab in CFX-Pre. However, what I...

21 February 2021 8,548 7 View

The most suitable turbulent models to predict flow past a floating body?

Hi all, I'm planning to simulate flow past a floating body using CFD method with the main purpose of investigating its stability against hydrodynamic forces. A sketch of the problem is presented...

28 January 2021 5,872 5 View

Stable region for VL model?

29 December 2020 4,125 3 View

Why did the authors design a sociodemographic questionnaire?

This is a question from a journal reviewer who asked my manuscript. Can someone please guide me on how to prepare the reviewer's answer? Thanks. here is reviewer question. why did the authors...

16 November 2020 735 2 View

How to measure the equivalent sand-grain roughness of a sandpaper?

I want to use standard sandpapers of different grit sizes to impart flow resistance to a surface. I am wondering how to convert the roughness of sandpaper to an equivalent sand-grain roughness. Is...

18 October 2020 9,384 3 View

How to calculate transvers current correlation function (MD)?

12 October 2020 4,424 1 View

How can I obtain thermal efficiency in thermal photovoltaic (PVT) systems by CFD (FLUENT) method ?

Hi everyone I have a question about the thermal efficiency of photovoltaic thermal (PVT) system by CFD (FLUENT) method. Why thermal efficiency in the morning with 400 W/m2 radiation is more than...

13 September 2020 2,543 4 View

How to deal with ANSYS Q3D surface mesh generation error?

I am trying to extract the stray inductance of a PCB bus bar using ANSYS Q3D. I tried different types of meshes but every time in the middle of the simulation, this error "Surface Mesh Generation...

10 September 2020 2,060 3 View

How can I improve Reinforcement Learning Agent training?

Hello everyone, I am trying to develop an RL agent for a simple double integrator system. Unfortunately, my agent couldn't find the maximum reward. The attached figure is the average episode...

20 July 2020 6,159 4 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

How to analyze a particular region of my simulation box in GROMACS?

Hi, I am using GROMACS 5.1.4 to simulate water in contact with a surface. I am only interested to calculate some properties of water near the surface. Let's say at a distance of x nm from the...

03 March 2021 9,989 2 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View