Ahmed S. Mansour

52 Questions 92 Answers 0 Followers

Questions related from Ahmed S. Mansour

How do we correctly setup the solar ray tracing for a Photo Voltaic PV panel simulation in ANSYS FLUENT?

Hello, I have a simple model (PV cell+ air channel) and I do not know how to let the sun rays hit the PV surface and then transfer the heat to the air..What I see is the sun rays hit the air...

09 September 2019 629 2 View

How to define a heat flux and convection coefficient at the same time on a wall using user defined function in FLUENT?

Hell, how can we write a UDF to include a heat flux value + convection coefficient for a wall in Fluent because we cannot define two named selections for 1 wall ? Danke!

06 June 2019 7,140 12 View

What are the equations of the boundary layer of a flat plate that TDMA method is based on?

Hello, I need the equations that show the coefficient of the matrix that solves the velocity contours of the boundary layer over a flat plate. I have the explicit discretization equations but I...

06 June 2019 8,041 4 View

How can we define a symmetry wall boundary condition in Fluent?

Hello, I want to simulate the half of the domain and define a symmetry wall because I do not want to consider it as the edge wall, I want to consider it the wall at the half of the domain..How ca...

05 May 2019 6,054 3 View

How to use Chemkin to model the model studied in the attached paper?

Hello, I want to know how to use ANSYS Chemkin to model the attached model in the attached paper. the videos on internet are so simple. Thanks

05 May 2019 4,028 2 View

Can we cople between ANSYS FLUENT and Simplorer ASAP?

Hello, we have done a simulation using ANSYS FLUENT, can we couple it with ANSYS simplorer? And if yes, how and what are the documents I can study? Danke!

04 April 2019 2,762 6 View

How can we define a heat flux boundary condition + convection for one wall in ANSYS FLUENT?

Hello, I have a wall which is affected by a heat flux and it is cooled by convection..How can we do this in FLUENT? Thanks

03 March 2019 6,070 4 View

How can we save calculations to a text file from a Matlab CFD code during running the code like ANSYS FLUENT?

Hello, we have a CFD code written in MATLAB and we wanna save the calculations at a specific node to a text file like ANSYS FLUENT..Any suggestions please? We will be extremely grateful! Thank you!

01 January 2019 892 3 View

What are the equations used to simulate a steady state thermal analysis using FEA ANSYS thermal?

Hello, we wanna write a thesis and we need the equations used for simulating the temperature distribution over a PV panel.. Where can we get these equations that ANSYS uses ? Thanks

01 January 2019 5,873 5 View

How to save data in a file from MATLAB GUI?

Hello, we have a MATLAB GUI code and it produces a graph, we need to save the data of the graph in a txt file, how can we do it? Thanks

10 October 2018 6,642 4 View

How to plot data from a table written in a txt file using MATLAB?

Hello, I have a file contains many columns and we need to plot the table in MATALB. How can we do this? The file is attached.. Thanks

10 October 2018 1,125 0 View

How does this UDF of a flap airfoil work?

Hello, I have this UDF and it says that the airfoil changes the degree to +/- 8 through 1 sec, how is to work and how can we control the angle? /**********************************************/ /*...

10 October 2018 4,642 0 View

How can we enter pressure values for specific locations (points) in a static structure simulation an ANSYS?

Hello, we have some pressure values generated from a cfx simulation but we do not have the solution files. We need to enter each value manually...How can we do this and how can we write the values...

10 October 2018 7,963 7 View

What are the matrix coefficients od 1D Navier Stokes equation?

Hello, I writing a FORTRAN code to solve 1D Navier Stokes equation, I wanna know how I can get the formula of a(i), b(i,) and c(i), the snapshot is attached, Thanks

09 September 2018 6,137 4 View

Is it available to interpret 2 UDF's in FLUENT at the same time?

Hello, I have 2 UDF's and I wanna insert them at the same simulation in FLUENT, is there any way? Danke!

07 July 2018 1,715 4 View

How can we make a FORTRAN code simulates the heat transfer of a flat plate unsteady state?

Hello, I have a FORTRAN code which simulates heat transfer, I need to make it transient... Any help? Thanks

07 July 2018 2,538 5 View

How is the Maltose assay prepared?

How? Thanks

07 July 2018 8,002 0 View

How to simulate a battery in ANSYS FLUENT?

Hello, I wanna define the zones of the battery, a video is attached for more details and my model is seen in a photo, I wanna know how to name the selections...I cannot find the zones in Fluent...

06 June 2018 6,607 0 View

How can we use Matlab GUI for generating CFD mesh?

Hello, I am working on a Matlab code, I use GUI, I get an error when I define the dimensions from GUI, but the code works if I run it alone, what is the solution? Thanks The error is attached..

05 May 2018 1,586 3 View

What is the impact factor of Alexandria Engineering Journal?

Hello, the impact factor of AEJ? Thanks

05 May 2018 3,052 5 View

Can we change the quality of welding in ANSYS MECHANICAL?

Hello, how can we change the quality of welding in Ansys? Danke!

05 May 2018 8,423 4 View

How can we get the coordinates of a 3D blade directly to solidworks by measuring techniques?

Hello, I have watched a video on Youtube about using a method for getting the 3D coordinates of a 3D blade. The engineer used a sensor and touched the blades surface by it and it was transferred...

05 May 2018 768 4 View

How can we get the coordinates of a 3D blade directly to solidworks by measuring techniques?

Hello, I have watched a video on Youtube about using a method for getting the 3D coordinates of a 3D blade. The engineer used a sensor and touched the blades surface by it and it was transferred...

05 May 2018 4,682 8 View

How do we carry out the 6DOF dynamic mesh simulation for a 3D turbine?

Hello, I have a 3D model and I wanna run a 6DOF dynamic mesh simulation, I need the settings, I run it but the turbine does not rotate. I do not know the reason. Any help? Thanks

04 April 2018 7,115 0 View

What are the settings of a turbine using 6DOF dynamic mesh in the design modeler?

Hello, I wanna simulate a turbine using 6 DOF dynamic mesh in fluent, I wanna know how to create the interface or the contact edges between the turbine and the other domain, what are the settings?...

04 April 2018 4,271 4 View

Why does not the dynamic mesh work with wind turbines, no rotation?

Anybody carry out a simulation using the dynamic mesh in Fluent for turbines? Thanks

04 April 2018 5,088 1 View

How can we prepare Tartaric acid buffer stock solution ph 4.2?

What is the chemical composition and the method of preparation? Thanks

04 April 2018 8,899 8 View

System coupling (static structural and Fluent)?

Hello, I need to investigate the effect of the air temperature on the stress analysis of a model, I cannot do that, any ideas or tutorials about these simulations? A screenshot is attached shows...

03 March 2018 9,562 2 View

What is the difference between the 6DOF dynamic mesh and using a UDF sliding mesh for variable rotating speed wind turbines in Fluent ?

What is the difference? Thanks

03 March 2018 4,398 4 View

What is the meaning of "the flow counter" in a CFD paper?

Hello, I got this comment in a CFD work, "Please include the flow counter in the results" What does this mean? Thanks

02 February 2018 9,338 6 View

What are the best books for CFD coding especially C++?

Hello I wanna start writing a CFD code but I have to use a simple guide.. Thanks

11 November 2017 312 3 View

Does the electrical input power of the pump change with the flow rate?

Hello, will the electrical input power change for a pump runs on a fixed speed at different flow rates? Thanks,

09 September 2017 8,304 0 View

Ho do we calculate the numerical pump efficiency in Ansys Fluent?

Hello, we have a law to calculate the numerical efficiency of pumps based on the moment...will the moment change with the flow rates? Thanks

09 September 2017 2,344 4 View

Is the static pressure at the locations around the pump impeller represent the forces act on it?

Hello, is this can represent the resultant force on the impeller? Thanks

09 September 2017 1,082 2 View

What is the mathematical books that shows the illustration of fast Fourier transform FFT?

Hello, I need two books. Thanks

08 August 2017 8,153 9 View

What is the deadly soot density?

Hello, what is the deadly soot density and what is the standard code that assures the value? Thanks

08 August 2017 4,230 4 View

What about Lambert academic publishing reputation?

Hello, I am asking if it is okay to publish a thesis on Lambert..Are they trustful? https://www.lap-publishing.com/ Thanks

06 June 2017 9,968 4 View

How can we start the transient thermal simulation in ansys from the last saved timestep?

Hello, I cannot start the simulation if I stopped it, it starts from the beginning! Thanks

06 June 2017 2,458 0 View

How can we carry out a solar radiation simulation on a PV panel in Fluent?

Hello, I want to use the enclosure method to cover the PV and name the domains and use fluent but I cannot do it..Any help or idea? Thanks

06 June 2017 8,774 5 View

What is the template of research papers of this journal?

https://www.journals.elsevier.com/alexandria-engineering-journal/ Thanks

04 April 2017 2,071 2 View

A variable rotating speed wind turbine ansys fluent?

Hello, how can I define a variable rotating speed in ansys for a vertical axis wind turbine?.. Thanks

04 April 2017 8,282 6 View

How can we calculate the total inlet pressure at the inlet of a centrifugal pump?

Hello, I need the total pressure at inlet equation.. I have a confusion of something that is related to this. Thanks

03 March 2017 6,026 11 View

What is the chord length of a horizontal axis wind turbine?

Hello, I have a HAWT blade and I want to know what is the value of the chord of it because we have many chord lengths of the same airfoil due to the loft technique...Thanks

03 March 2017 9,245 7 View

What is the best software for the professional generation of scientific plots?

Hello, I need any accessible software. Thanks

01 January 2017 2,945 3 View

Are these journals free or with charges for publication?

Hello, the journals are here.. Journal of thermal stresses.. http://www.tandfonline.com/action/journalInformation?show=aimsScope&journalCode=uths20 Journal of Applied...

01 January 2017 7,424 3 View

Is the Journal experiments in Fluids (Springer)free?

The website http://rd.springer.com/journal/348 Thanks

01 January 2017 1,227 2 View

Cm for a 3D VAWT Fluent higher or lower?

Hello, I am simulating a 3D VAWT in Fluent and the total Cm coefficient is 30 and checked out the research paper and this value is true..How can we calculate the power coefficient? Thanks

01 January 2017 430 3 View

What is the value of cp in Eckert number?

Hello, I am working on a heat transfer research and I wanna use Eckert number but the cp value is for the fluid "water" or what? Thanks

12 December 2016 5,256 3 View

Is journal of fluid mechanics free or not free?

Free or with charges to publish an article? Thanks

11 November 2016 9,088 0 View

What do you know about the international journals of turbo machinery?

Hello, I want to know some information about these international journals: International Journal of Fluid Machinery and Systems and the International Journal of Rotating Machinery: 1-The grade of...

11 November 2016 613 2 View

What is the rank or the grade of this Journal?

International Journal of Applied Science and Engineering Research

11 November 2016 4,228 3 View

Hello, I am working on simulations on a centrifugal pumps and I want any equations for y+ calculations...Any reference or help?

09 September 2016 787 1 View