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

How can I fix the capacity curve of two different structure?

I have two frames for nonlinear analysis, one of them is CBFs and one of them is BRBFs ( the generals are the same, only lateral elements are different). When I drew the capacity curve of my...

11 November 2020 10,034 3 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

Why does a turbulent flow form eddies?

I can't understand from a physical standpoint how fluctuating velocity components in a turbulent flow lead to formation of spinning structures of different sizes known as eddies. Can anyone...

19 June 2020 549 68 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Is there a classification scheme for rock cavities or caverns with respect to their size and shape?

The range of forms and sizes of cavities in rock is very big. Is there a classification scheme for rock cavities regarding their size and shape?

02 March 2021 4,511 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 1 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

I need dataset for recommandation system?

Hi every body I need to collect datasets from different source to work on recommendation system algorithms, could you advise me how collect data?

27 February 2021 7,063 7 View

High aspect ratio hexahedral mesh optimization solver?

I am interested in evaluating mesh optimization solvers that converge to high aspect ratio unstructured hexahedral grids. In other words, I am interested in a solver that optimizes warpage,...

26 February 2021 7,279 2 View