Experimental analysis of an airfoil in a free stream

V diplomskem delu smo obravnavali problematiko obtekanja osamljenega krila v zračnem toku. Pri eksperimentalni analizi smo uporabili vetrovnik, kjer smo izvedli meritve statičnega tlaka na površini osamljenega krila pri različnih napadnih kotih. Iz izmerjenih podatkov smo določili sili upora in vzgona, pri čemer nas je zanimala odvisnost koeficienta vzgona in upora od napadnega kota. Izmerjene in izračunane vrednosti smo predstavili v izrisanih grafih, jih komentirali in jih med seboj primerjali.In the thesis we discussed the issue airflow around the airfoil in the airflow. In the experimental analysis we used a wind tunnel, where we carried out measures of the static pressure on the surface of the isolated airfoil at different angles of attack. Based on the gained data we determined the friction and buoyant force, where we were interested in the dependence of the friction and buoyant coefficients on the angle of attack. The measured and calculated values are graphically presented, commented and compared among each other