Recent content by kezman2000

  1. K

    Why Does a Boat Turn When in Reverse?

    I think you're referring to 'torque roll'. Prop walk produces a yawing effect on the boat, which seems to be produced by a side-ways force generated by the propeller (or maybe a torque around the vertical axis of the boat). I guess a torque around the vertical axis of the boat could be generated...
  2. K

    Why Does a Boat Turn When in Reverse?

    I've been puzzling over this problem all day so I'm hoping someone can come up with some better ideas than I have: When you put a boat that has a single propeller in reverse it will also turn. The direction in which it turn is based on the direction that the propeller rotates; if it rotates...
  3. K

    Analytical solution to the diffusion equation with variable diffusivity

    Hi, I'm trying to find an analytical solution (if one exists) to the 1d diffusion equation with variable diffusivity κ(x); \partial_t u(x,t) = \partial_x[\kappa(x) \partial_x u(x,t)] Could someone point me in the right direction to solve this if its possible to do so analytically. I've...
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