AVL TIPPELMANN FLOW MEASUREMENT / 68 SIMULATION SOLUTIONS TEST SYSTEM SOLUTIONS Electrification Battery Test Systems E-Motor Test Systems Power Electronics Test Systems Component Test Systems MBD on the virtual testbed Engine Test Systems End of Line Test Systems Real Life Test Systems Driveline Test Systems Fuel and Lube Test Systems Emission Test Systems and Certification Vehicle Test Systems Racing Test Systems TESTING EQUIPMENT SIMULATION TOOLS TESTING TOOLS CUSTOMER SERVICES PRINCIPLE In PIV-measurements (Particle Image Velocimetry) microscopic particles are illuminated by a laser light sheet during two closely timed pulses and simultaneously recorded photographically. Using two cameras the spatial components of particle motion are obtained, from these the three-dimensional velocity field in the measuring plane is determined. Velocity fields can be visualised and are well suited to the validation of computational fluid dynamics results. Similarly, the conventional flow characteristics (mass flow, Tippelmann swirl and tumble numbers) can be derived from the velocity fields, allowing a quick comparison with results of the integral momentum measuring technique. In addition, other characteristics of the flow field, such as the position and orientation of the swirl and tumble axes or the omega tumble value, can be determined, further contributing to the analysis and documentation of the influences of air-conducting components. BENEFITS AT A GLANCE • Precise three-dimensional recording of the velocity field • Velocity fields from different planes can be combined to visualise the spatial velocity distribution • Measurement close to the combustion chamber surface of the cylinder head PIV Flow Test Benches Stereo PIV • Automated measurement sequence • Comparability to integral momentum measuring method according to Tippelmann • Safety requirements for industrial use are met E-Power Measurement System Battery Test Systems E-Motor Test Systems Power Electronics Test Systems Flow Test Benches Thermal Test Systems MBD on the Virtual Testbed Engine Test Systems End of Line Test Systems Real Life Test Systems Driveline Test Systems Fuel and Lube Test Systems Emission Test Systems and Certification Vehicle Test Systems Racing Test Systems
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