Wind forces on structures supporting solar collectors

Abstract Experimental research concerning the steady wind action on solar collectors, carried out in the boundary layer wind tunnel is based on a pneumatic mediation technique for each of the exposed surfaces. The purpose is to evaluate the lifting forces transmitted to the structures supporting solar collectors placed in solidary rows on the flat roofs of multilevel buildings. Preliminary tests proved the satisfactory precision of the mediation procedure. Othe ttests detablished important shelter effects due to marginal attics.