Velocity Profiles in Shear-Driven Liquid Films: LDV-Measurements
In design and layout of fuel preparation systems for SI-engines or gas turbines as well as other technical systems working with shear-driven liquid films accurate information on the velocity distribution within the film as a function of film height is necessary for numerical modeling. To meet this requirements an improved LDV system was built which allows for the first time accurate velocity measurements in thin and wavy liquid films down to an average thickness of about 100 µm. Layout and the optical arrangement of the new system is presented in details together with some examplary applications.
Unable to display preview. Download preview PDF.
- Deissler, R.G.: Heat Transfer and Fluid Friction for Fully Developed Turbulent Flow of Air and Supercritical Water with Variable Fluid Properties. ASME-Journal of Fluids Engineering, 76, pp. 73–85, 1954.Google Scholar
- Elsäßer, A., Samenfink, W., Hallmann, M. and Wittig, S.: Mixing Phenomena of Fuel Sprays in Intake Manifolds. In: Proceedings on the Sixth International Conference on Liquid Atomization and Spray Systems (iclass94), Rouen, France, Paper VII–10, 1994.Google Scholar
- Glahn, A. and Wittig, S.: Two-Phase Air/Oil Flow in Aero Engine Bearing Chambers-Characterization of Oil Film Flows. ASME-Paper 95–GT–114, 1995.Google Scholar
- Pfeiffer, A.: Entwicklung einer keramischen Kleingasturbinen-Brennkammer: Neue Möglichkeiten zur schadstoffarmen Verbrennungsfüh- rung. Dissertation, Institut für Thermische Strömungsmaschinen, Universität Karlsruhe (T.H.), 1992.Google Scholar
- Samenfink, W., Elsäßer, A., Wittig, S. and Dullenkopf, K.: Internal Transport Mechanisms of Shear-driven Liquid Films. Eighth International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, 8–11 July, 1996.Google Scholar