Experimental investigation of the virtual mass of spherical-cap rigid body

الملخص EN

The aim of the present work is to study the virtual mass (added mass) coefficients for spherical-cap bubbles were measured by using five different spherical-cap sizes made of steel.

The bodies were suspended by a fine wire over an aluminum pulley to weights which provided the driving force.

The time taken for the spherical-cap bodies to moving through different distances were measured with a stop-watch.

The force balance of accelerated motion for spherical-cap bodies is investigated and added mass coefficient is measured.

The added mass coefficient for spherical-cap bodies a simulation of spherical-cap bubbles with different wake angle (50, 60.5, 75, 90, 120) degree is (19.76, 8.86, 4.08, 2.69, 1.26) respectively.

The experimental results are compared with the theoretical results from some investigators.