A method of simulating a string using a wave equation relates movement of
the string in time to force acting on the string, wherein the force
acting on the string simulates a stream of a fluid medium flowing
relative to the string. The simulated string is supported between two
supports and is aligned at rest in a first direction between the two
supports, a first of which allows movement in a second direction
orthogonal to the first direction and a second of which does not allow
movement. The string is then caused from rest to vibrate in a plane,
which includes the first and second directions, by turbulence in the
fluid flow causing the stream of fluid medium to exert a pressure on the
string in the second direction. Movement of the string out of alignment
with the first direction causes the stream of fluid medium flowing in the
first direction to exert a force on the string in the second direction.