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Questions related from Hayder Jaffal
Dear colleagues; I modeled 3D melting and solidification of phase change material filled heat exchanger and generated a (as in the picture below). First, I enabled melting and solidification...
20 January 2021 1,543 4 View
In most engineering papers, we need to represent the relationship between the variables in x, y coordinates. Some graphics lose their clarity when converted to images in the paper. What is the...
25 January 2019 1,870 0 View
Many researchers have been interested in improving the heat transfer of the thermal systems using nanofluids. Many theoretical and experimental studies have been conducted on this subject. What is...
19 January 2019 1,346 4 View
Researchers have been found that the maximum heat transfer enhancement occurs at θ = 90° for convection heat transfer inside an open inclined concentric annular space, the tow cylinders are fixed,...
28 February 2018 8,648 5 View
For the exergy behavior of human body, researchers found that exergy destroyed and exergy efficiency decrease over human body is more efficient and destroys less exergy in lower relative...
16 February 2018 6,504 4 View
In view of second law of thermodynamics, to optimize the performance of any thermal system, it is important to analyze the exergy of this system by making exergy balance between the system and the...
03 January 2018 5,301 13 View
When solving the Navier-Stokes equations for a fully-developed viscous flow in a straight channel, we noticed that the velocity and pressure changes along the channel direction. Is it possible...
28 December 2017 5,168 8 View
The performance of heat exchanger can be substantially improved by a number of augmentation techniques. One of these methods is Nanotechnology. Nanofluid widely used to enhance Nusselt number...
20 December 2017 6,760 10 View
Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be converted to electricity.Wind turbines have been used as a source of renewable energy for...
01 January 1970 1,837 4 View
Surface roughness is used to improve heat transfer in thermal systems. On the other hand, surface coating of nanoparticles improves heat transfer. Which method is best to improve heat transfer in...
01 January 1970 6,787 4 View
Nanofluids widely used to enhance heat transfer because of increase in thermal conductivity, at the same time the pressure drop increases as a result of an increase in viscosity of the new fluid....
01 January 1970 3,337 3 View
I have temperature contours for different cases and I would like to compile them in one figure to show differences between them. How can I present many contours in one figure using ANSYS fluent?
01 January 1970 1,822 4 View
There are two heat transfer enhancement techniques: passive and active. The use of nanofluid showed an enhancement in convection heat transfer in many industrial applications. This method can be...
01 January 1970 4,894 6 View
There are two heat transfer enhancement techniques: passive and active. The use of vibration for surface or fluid is classified as active heat transfer enhancement technique, but in some studies,...
01 January 1970 1,015 1 View
The researchers dealt with nanofluid technology in various thermal systems in order to improve the thermal performance of these systems. Is the use of nanofluid more effective in the natural...
01 January 1970 5,243 2 View
To analyze the thermal stratification of solar hot water storage tanks using numerical simulations, is it possible to apply the turbulence model? What are the parameters of using the model?
01 January 1970 6,819 6 View
A term ''hybrid'' has been used frequently in engineering research, does it mean making a new device that performs two functions in one or performs the same function in two ways?
01 January 1970 6,934 5 View
Dear Colleagues: What is the most important factor that attracts you as a tester or reviewer of a certain research paper? list in order of importance. 1-Research title. 2-Research...
01 January 1970 3,067 13 View
Recently, researchers have focused on the use of nanofluids to improve the heat transfer of thermal systems despite the risk of using this technology and its high cost. Are there thermal systems...
01 January 1970 5,265 6 View
If you submit your research for publication in a specific journal, and if it happened that you were a reviewer of that research, would you submit your observations and suggestions in the same way...
01 January 1970 8,928 8 View
