Brainstorm Ideas for Project - Get Suggestions on Differential Equations

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Discussion Overview

The discussion revolves around brainstorming ideas for a project focused on modeling systems using differential equations. Participants share various topics of interest and seek suggestions for relevant articles or papers.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant proposes modeling topics including orbital mechanics, Kepler's laws, general and special relativity, pendulum motion, and wave motion.
  • Another suggests that understanding specific goals and tools is important, mentioning the double pendulum as an interesting dynamical system that requires numerical integration of differential equations.
  • A participant highlights the educational value of the planar differential equation for a damped simple pendulum for those new to differential equations.
  • Discussion of the non-linear pendulum is raised, noting that it can handle larger perturbations compared to the linear case, inviting investigation into this assertion.
  • A participant expresses a decision to focus on the double pendulum for their project.
  • Another participant mentions the challenge of numerically solving advection-dominated transport problems with weak diffusion, emphasizing the need for stability in solutions without small time steps.

Areas of Agreement / Disagreement

Participants present multiple ideas and approaches, with no consensus on a single topic or method for the project. Various competing views and suggestions remain unresolved.

Contextual Notes

Some suggestions depend on the specific goals and boundaries of the project, and there are unresolved considerations regarding the numerical methods for solving differential equations.

Who May Find This Useful

Individuals interested in project ideas related to differential equations, modeling, and dynamical systems may find this discussion beneficial.

faradayscat
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I will be writing a paper by modelling a system and its differential equations. I have just started brainstorming ideas but I would also like to hear other peoples' ideas as well!

I have these ideas so far, can anybody suggest relevant articles or papers on these topics (avoid wikipedia if possible):

-Orbital mechanics/dynamics
-Kepler's laws of planetary motion
-General and/or special relativity
-Pendulum motion
-Wave motion

I look forward to reading your ideas and suggestions!
 
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It helps to have a better idea of the specific goals, boundaries, and tools.

The double pendulum can be interesting, as can a number of other dynamical systems in 2 dimensions, but you need to be able to numerically integrate the diff eqs quickly with lots of different initial conditions.

Wikipedia can be a good place to find ideas and the related more reliable sources.
 
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If you are newish to differential equations, the planar differential equation of the position and velocity of the damped (simple) pendulum is extremely enlightening.
 
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The non-linear pendulum. Know it? In the linear case, you can only (initially) perturb the pendulum a small amount before the solution looses accuracy. However, in the non-linear case, you can smack the pendulum so hard so that it goes round and round and the solution will still accurately describe it's motion. Pretty sure. You can investigate this assertion and determine if it is true.
 
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Thank you all for your answers, I'm going with the double pendulum.
 
Numerically solving advection-dominated transport problems (with weak diffusion present) to obtain accurate solutions without requiring minute time steps for stability or for avoiding wiggles in the concentration profiles.
 

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