Midair haptics and levitation may get steadier with predictable ultrasonic airflow

Midair haptics and levitation may get steadier with predictable ultrasonic airflow

Acoustic streaming generated by airborne ultrasonic phased arrays plays a critical role in the performance of advanced ultrasonic technologies, including midair haptic feedback, odor delivery, and acoustic levitation. Researchers at University of Tsukuba have developed a predictive model for acoustic streaming in phased arrays by integrating three-dimensional acoustic and fluid simulations.