MODELING A TWO-PHASE FLOW IN A DEVICE TO REDUCE THE MUSCLE TONE OF THE HANDS

Abstract

In this work, a new design of internal channels for a pneumatic mechanical device was proposed to reduce the muscle tone of the hands. The new design uses a two-phase gas-liquid system as a working medium. Numerical modeling was performed, according to the results of which a cumulative distribution of the average diameter of gas bubbles was obtained at different pressure values in the channels. We used the Euler-Euler approach to simulate a two-phase system, the Reynolds Stress turbulence model and the Population Balance model, which is a set of partial differential integral differential equations that allow performing an average behavior analysis for a set of particles based on an analysis of the behavior of a single particle in local conditions. Simulations have been carried out for different bubble breakup and coalescence models. Graphs of the Sauter bubble diameter has been obtained. The results are to be validated with experimental data in the near future.