Particles can move directionally in a trough with finlike asperities under longitudinal vibrations.
Huazhi Chen, Shengyuan Jiang, Rongkai Liu, Weiwei Zhang 2018, 'Particle Directional Conveyance under Longitudinal Vibration by considering the TroughSurface Texture: Numerical Simulation Based on the Discrete Element Method', Shock and Vibrationhttp://dx.doi.org/10.1155/2018/8260462. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)