Analysis of forces and stresses of horizontal axis propellers and turbines has an increased interest in recent years, because of the need to develop adequate analytical tools for the design and evaluation of wind turbines rotors.

The purpose of this paper is to present a numerical method to solve partial stochastic differential equations. This concept remains the differential operator unchanged but discretizes the dimension of the problem. The response function will be decomposed by the Karhunen--Loeve expansion and...