Recent content by ptptaylor

Just in case anyone reads the last post, it is incorrect with regards to certain versions - the function heaviside is not defined in MATLAB 2008b, however i can't comment on any later versions than this

Ok, I finally found out where I was going wrong. In case anyone finds the information useful, You assume a solution of: U(x,t)=A*exp(jkx) +B*exp(-jkx) Then substitute in the boundary conditions ie at x=l, u(x)=0 since it is fixed at one end. The other boundary condition is at x=0...

Ok I can probably make a bit more sense now hopefully... I have the general solution u(x,t)= Aexp(j(wt-kx))+Bexp(j(wt+kx)) I can find the coefficients A and B of this equation by using the boundary conditions present, this is all fine. However, when the coefficients are put back in I am still...

Hello all, This is to do with forced longitudinal vibration of a rod (bar). It's basically a problem to do with the linearised plane wave equation (1d). The rod is fixed firmly at one end, and excited at the other by a harmonic force. The wave equation (with constant rho/E instead of...

Yes but I'm getting confused as to use as what in the bernoulli equation. The equation is stated in my original post to find the velocity...

Sorry, might not have been making it quite clear. The static pressure measurement was staking perpendicular to the flow and the total (stagnation) press was taken normal to the flow.

Hi, I am becoming a bit stuck with a fairly cynical question. I want to work out the velocity of the fluid from the static and total pressures obtained in a wind tunnel experiment. The manometor was open to air (atmospheric) at one end and measuring static or total pressure at the other...