Recent content by Xaspire88

  1. X

    Reducing Water Pressure (Pipe sizing)

    I agree and this is exactly why I think it is unnecessary, but I need a good concise way to explain it to the team so that they also agree. I think it should be fine for us to drain staright from the filter to the facilities line without making any changes. It is simply a gravity fed drain line...
  2. X

    Reducing Water Pressure (Pipe sizing)

    What if we just used an orifice plate? I still don't think any of this is necessary as there is no way that our 2L of 55psi is going to pressurize the open drain line but some people require extra assurance.
  3. X

    Reducing Water Pressure (Pipe sizing)

    I have a problem at work and unfortunately it has been too long since I have been in a class room for me to reason this one out, never did like fulid mechanics much :). We have filter that is pressurized to approximately 55 psi. Once ever 12min or so this filter purges a volume of ~2L that...
  4. X

    Algebraic C-Grid Geneartion Airfoil - Matlab

    I'm looking to generate a C-grid for an airfoil using Matlab with clustering at the surface and wake region. I've looked at a book called Computational Techniques for Fluid Dynamics Vol. 2 and it does a decent job of explaining it and has a code but the language is in Fortran and I have no...
  5. X

    Tennis Ball Cannon Pressure & Exit Velocity

    Unfortunately I do not have a working model built yet, and wont for quite some time. Am I to believe there is not such equation in existence? I highly doubt that. I've seen a couple somewhat complicated differential equations that were used to arrive at the result I'm looking for but I cant say...
  6. X

    Tennis Ball Cannon Pressure & Exit Velocity

    Yes this is far from an idealized situation and I figured I would take these things along with drag and friction into account when I actually have a working model to test varying pressures/distances with but for the time being I'm just looking for an expression to analytically determine the...
  7. X

    Tennis Ball Cannon Pressure & Exit Velocity

    I'm designing a tennis ball launcher using compressed air that will hopefully be able to hit a target at some distance away. We wont know the exact distance until the day of the competition, but I was curious if there was some relatively simple equation relating the pressure of the compressed...
  8. X

    Ratiation Energy problem

    Have this HW for a Thermofluids class and I'm a little confused. Problem A) Use small Biot number approximation to derive the energy equation for a small solid sphere of radius "a" which exchanges radiative energy with a large sphere of radius "b". B) If B -> infinity, show the energy...
  9. X

    Plotting stress tensor in MATLAB, Parametric Surface

    First off, I'm not sure if matlab questions go here or not, or if they are even dealt with on this forum. If not more or remove I guess. I am no matlab wiz so this is mind-boggling to me. I am given a state of stress at a critical point of a component and told to plot a 3D parametric surface...
  10. X

    Boundary conditions for a 4th order beam deflection equation

    thanks, I was getting confused because some sites had "common beam" equations that were different than others.. until i realized that the supports were on different sides and thus their coordinate system was changing. now it makes sense.
  11. X

    Boundary conditions for a 4th order beam deflection equation

    What would the boundary conditions be for a fourth order differential equation describing the deflection (elastic curve) of a propped cantilever beam with a uniform distributed load applied? i.e. a beam with a built in support on the left and a simple support on the right. I need 4 obviously but...
  12. X

    A column under thermal stress

    I have a problem with a constrained column under thermal stress where I am to find the reaction forces at the supporting ends of the column due to its own weight after being heated. Attached is the problem, equations used, and my solution attempt. I tried to solve for the reaction forces...
  13. X

    Beam (composed of two materials) Axial Loading

    The more I work on this the more confused I get. For now I just want to be able to clearly understand the simple one material model, and have an answer in front of me that I don't have to second guess. ugh.
  14. X

    Beam (composed of two materials) Axial Loading

    *Edit: "To answer your third question, if you apply only an end force to the rod, but you apply no other applied load (not even gravity), then the force in the rod is constant along the length of the rod. Yes, the limits of integration should be 0 to x." You say the force in the rod is constant...
  15. X

    Beam (composed of two materials) Axial Loading

    Here is a simplified version of this problem. In this version we just have one material. Can I do what I have done in that image? Since total deformation of the beam is 0 can we think of it as the beam first being compressed by its own weight, and then be extended by the upward...
Top