Acoustic Wave Solutions - Fortran/MATLAB
£20-250 GBP
着払い
I am currently trying to create a fortran program that will solve the flow throughout an engine manifold. I am using acoustic waves to do this.
I am NUMERICALLY solving two wave equations. one for a left propagating wave and one for a right propagating wave.
I have used all explicit schemes. Using finite differences for the spatial numerical scheme and a Runge-Kutta 4 for the time integrator. These waves simulate acoustic waves. One entering the pipe at the left, and one entering the pipe at the right.
I need to successfully apply boundary conditions (@ x=0 and x=L). When implemented correctly, these boundary conditions will transform the waves.
For example if I implement a closed wall condition. The wave should bounce of that wall and come back out. If I implement an open wave it will be inverted and sent back into the pipe as an inverted wave.
The first step of the project that I want you to do is.. implement these boundary conditions so that this happens when the programme is left to run! I dont mind if you want to do it on MATLAB, and I dont mind if you want to use your own numerical scheme. However, accuracy and stability must be ensured.
The wave shaped will be calculated from a simple analytical equation, say: exp(-200*(x-0.1)^2) and exp(-200*(x-0.9)^2). If you plot these two on a x-y graph, youll see what the waves start like. When the programme runs, the waves will approach each other at a speed of the speed of sound.
I would need an estimate of how long it will take you to do it. If its too long, then I would of probably already fixed it by then (I hope).
I cant see this being a big problem for experienced coders, and a very short task. I have more work after this. If I am impressed with this small piece of work, I will delegate more work to you (If you choose). Thank you.
プロジェクトID: #5750449
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13人のフリーランサーが、平均£114 で、この仕事に入札しています。
Hello I am interested from your project. I have done many numerical project for solving PDE using matlab or Fortran
I can implement quite quickly the boundary conditions, so that you can select them at runtime. It shall take me a couple of hours, including getting acquainted with the code and its functionality. With my 7 years exper もっと
PhD in physics. Large experience in research and complex phenomena simulations using Matlab. I will be glad to help you. Please send a message back to establish the details.
I am an expert in computational fluid mechanics and Matlab. I have many experiences in this field. I have used finite different method. I can also ode45 function(Runge-Kutta 4) in Matlab. I can do it correctly. Pl もっと
Hi, electrical engineer done masters in electrical microwave engineering currently doing PhD in the same, kindly send me equations I will prefer using matlab because I am doing my own semester project in FDTD using mat もっと
Hi, I am having extensive experience in programming and solving numerical problems in MATLAB. I would like to help you on this project. However, I would appreciate if you give me some theoretical background or link ex もっと
Hello, I will code the boundary conditions for both closed and open-ended pipes into a Matlab model. I expect that this will be complete in 7 days. My background is in aerospace engineering and I have previously deve もっと
My experience as Technical Engineer (Intern) at K-Beach Global Radio has prepared me to collaborate with and achieve actionable results through simulation of MATLAB and various sound design software. I am currently wor もっと
I have PhD in Astrophysics. Have 6+ years SW company work experience. I'll be verymuch interested to solve the problem on Octave (freeware equivalent to Matlab). I have put low bid, because I want the project to win.