Ultrasonic propagation in liquid and ice water drops. Effect of porosity

This work studies ultrasonic propagation in liquid and ice water drops. The effect of porosity on attenuation of ultrasonic waves in the drops is also explored. The motivation of this research was the possible application of ultrasonic techniques to the study of interstellar and com-etary ice analogs. These ice analogs, made by vapor...

Study on equipment requirements in support of microgravity fluid physics experiments

The study culminates in requirements for facilities and instrumentation of a laboratory supporting microgravity fluid physics experiments and equipment developments. The requirements are based on reviews of candidate areas of experimentation and proposed or actual experiment facilities. Present deficiencies in measurement capabilities or...