Friction friction and wear in so-called self-lubricating materials. Fluid friction occurs between fluid layers that are moving relative to each other. This internal resistance to flow is named "viscosity". In everyday terms, the viscosity of a fluid is described as its "thickness". Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity. The less viscous the fluid, the greater its ease of deformation or movement. All real fluids (except superfluids) offer some resistance to shearing and therefore are viscous. For teaching and explanatory purposes it is helpful to use the concept of an inviscid fluid
Universal Metric to Flow Universal Metric to Flow Universal Metric to Flow (UMF) technology enhances the ability to utilize Cisco NetFlow data for rapid traffic analysis. Developed by network performance management company, "SevOne", in early 2010 and announced at Cisco Live in Las Vegas in July that year, the UMF technology was designed to automate the performance troubleshooting workflow, a major problem within the industry. Universal Metric to Flow enables network operations to graph key network performance metrics from SNMP or network latency derived from IP SLA, observe a spike, highlight it, and drill down into the network traffic, providing immediate visibility into the