Study of Gasdynamics with a Shallow Water Tank

Abstract

There is some analogy between the pressure wave in gas and the long wave on the water surface. Making use of the analogy, we can study compressibility effect in high speed air flow with a shallow water tank. The author investigated the compressibility burble of three airfoils with a shallow water tank and compared with data of high speed wind tunnels. Further, he inquired the influences of the depth of water, draft of model and width of tank upon shallow water tank experiments.