My first project - Numerical simulation of Jet impingement Cooling heat transfer

Hi Guys.
     This is my B.E. Project. I've completed this just now.

     In this case we assume a hot surface and we are gonna cool it off. We have used a cold jet to cool the hot plate. as you can see in the picture below.

     Based on this we did some analysis. We reviewed the work done by the scientists and we came up with a model and its just a simple model with an inlet, a heated wall and pressure outlet. This is what the model we came up with.

     Since this is an axis-symmetric model we can reduce the above design to a 2 Dimensional Design as shown below

     We've then meshed the above design in GAMBIT (Geometry And Mesh Building Intelligent Toolkit). We've used very heavy mesh with clustering near the wall. This way we'll get more accurate results near the wall.

     We've run this model in Ansys Fluent with an inlet velocity of around 16.79 m/s. You may ask me why choose a velocity of 16.79, that's because we've chose a Reynolds number of 23,000. This is what the previous researchers did. We gave the wall a heat flux of 1300 W/m^2. Then we ran the model with K-Omega Turbulence model and the results are given below.

     Just in case if you wonder how the flow actually occurs you can see this video below and you'll understand how the flow occurs. 

     The video is just tilted to its left. But you can understand the flow by looking at it.  As time increases we can see the free jet being converted into the wall jet and the flow getting attached to the wall. 

     By this analysis what we have found out is that for a given domain we can effectively cool the system by using impingement cooling system. If you want to have the case and data files just mail me at karthi90june@gmail.com or pratheep.kumar90@gmail.com. I'm free to help you out..

                                                   See you in another post. 

What is this site...?

Hello Folks,
      I'm Pratheep. I've created this web page so that you can share your CFD ideas or projects to everyone. This may also be used to ask others a question about an idea which you have a doubt on or you don't know how to go about it...

      We all know that CFD (Computational Fluid Dynamics) is starting to be very useful engineering field and more engineers are on to it as every day progresses. This page makes you to catch up with the rest of the world.


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