NOVELTY - The system has a flow passage (110) that is configured to carry fluid from one location to another, a selectively vibrating flow generator (112) with a sharp edge (122) and a driving device (114) that is configured to vibrate the flow generator and the flow passage to create streaming fluid flow in direction away from the sharp edge through the flow passage. The flow generator comprises two nonparallel surfaces that form an angle. The nonparallel surfaces are symmetrically arranged about axis aligned with axis of flow path.    USE - Microfluidics acoustic pump system for microfluidics chip (claimed) and micropump used in fields of microfluidics research such as Bio-micro-electromechanical system (MEMS) and lab-on-chip devices. Can also be used in diagnostics and drug design, purging operations in small biological volumes, implants, medical instruments and tools, drug delivery, ink-jet printing devices, fuel cells and DNA chips.    ADVANTAGE - The forces that produce currents are very strong and the surface tension of water and other fluids are easily overcome, hence pumping of fluids such as water is performed effectively. The acoustic streaming from the sharp edge is highly localized at the sharp edge with the dimensions that are smaller than the acoustic wavelength. The streaming is localized at the sharp edge and does not depend on the overall geometry of the flow generator or the fluid around the flow generator due to the sharp edge and the tapering sides of the flow generator. The applied pulse of the ultrasound is tuned to pump the fluid from sharp edge and to crack open the reed valve flow restrictor. The sophisticated reeds are created for different gains at different open positions so as to avoid resonance problems. The acoustic pump is reliable, easily integrated with other micro-fluidic circuits and is easy to manufacture. The pump system is customized as the system is tuned to provide desired flow rate.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a method for acoustic streaming of fluid; and    (2) a microfluidics chip.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the acoustic fluid pump.    Micro fluidic acoustic pump (100)    Flow passage (110)    Selectively vibrating flow generator (112)    Driving device (114)    Sharp edge (122)