How can I get "Matlab/Simulink model for Droop/Reverse Droop controllers"?

Dear Professors, Colleagues and Friends I need to develop a simple Matlab/Simulink model of reverse droop controller for a simple LV MG. How can I get a simple one to use it as a sample? A basic...

22 February 2021 8,647 2 View

Which programming language to simulate heat transfer and fluid flow?

Which programming language is the best to use in CFD? FORTRAN, MATLAB or any other? Is there difference between the performance of these codes and applications such as OpenFOAM?

16 February 2018 6,947 61 View

What is the relationship between a logical regression learning machine with a backup vector machine?

21 January 2018 8,048 1 View

What is the relationship between data hiding and data mining?

Data hiding and encapsulation both are the important concept of object oriented programming.

24 December 2017 237 4 View

What kind of algorithms are methuristic algorithms and what are their applications?

Various criteria can be used to classify the meta-algorithms: Based on a population-based answer and a population-based algorithm, an answer-based algorithm changes an answer while the search...

10 December 2017 4,188 4 View

What are the best normalization methods (Z-Score, Min-Max, etc.)? How would you choose a data normalization method?

data normalization a priori to analysis can be quite difficult. We suggest to employ analysis tools, which are Independent of the Chosen normalization, which means they don't need any data...

07 December 2017 9,233 3 View

What are the Longitudinal Data Analyses Options for just Two Time Points?

My data will compare student digital experiences in three universities. Two categories of students (distance and direct/regular students) would be considered in each university. The data will...

04 December 2017 627 3 View

Neural Networks provide a way to optimize paths? How're you?

I generally want to understand the behavior of the neural network in data mining

04 December 2017 6,636 3 View

Why do I always get 100% accuracy in my confusion matrix when i use NN pattern recognition app in matlab?

I have a pressure sensor and depending on the pressure applied resistance is measured between 2 points of the 3 electrodes connected to it.That is either between electrodes1 and 2 with 2 being...

03 December 2017 6,621 4 View

What kind of data is useful to simulate data mining?

How data mining works and why you should be careful about it. Because when we think of how we use data, it's very important to know about its performance. No data mining When you tell someone...

03 December 2017 629 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 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

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

How to show arrows over the streamlines in CFD-post?

I follow this to make streamlines like the photos attached below: (software- CFD post-processing) First I plot the 2D streamline over a surface "streamline 1". them I plot a vector by the...

01 March 2021 8,668 3 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

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

How to increase mesh quality of a cfd model in ansys fluent?

How can one improve mesh skewness, orthogonality, aspect ratio?

28 February 2021 7,730 3 View