- Volume 20 Issue 6
The breakup of liquid jet is the result of competing, unstable hydrodynamic forces acting on the liquid jet as it exit the nozzle. The nozzle geometry and up-stream injection conditions affect the characteristics of flow inside the nozzle, such as turbulence and cavitation bubbles. A set of calculation of the internal flow in a single hole type nozzle were performed using a two dimensional flow simulation under different nozzle geometry and up-stream flow conditions. The calculation showed that the turbulent intensity and discharge coefficient are related to needle position. The diesel nozzle with sharp inlet under actual engine condition has possibility of cavitation, but round inlet nozzle has no possibility of cavitation.
- 數値流體工學 荒天忠一
- Int. J. Eng. Sci. v.26 no.10 pp.1099-1112 Numerical Solution of Turbulent Flow Past a Backward Facing Step Using a Nonlinear k-s Model Speziale, C. G.;Ngo, T.
- Ph.D. Thesis, Department of Mechanical and Aerospace Engineering Atomization and Other Breakup Regions of a Liqoud Jet Reitz, R. D.
- JSME v.56 no.528 pp.2519-2525 Disintegration Progress of l Liquid Jet and Internal Flow in a Nozzle Shimizu, M.;Arai, M.;Hiroyasu, H.
- Atomization and Spray Lefebvre, A. H
- The Effect of Internal Geometry and Injection Pressure on the Folw and Spray Characteristics of a Plain Orifice Atomizer Ohrn, T. R
- ICLASS-91 pp.595-602 A Few Useful Relations for Cavitation Orifices Ruiz, F.
- Phys. Fluid v.22 no.6 Ultra High Speed Filming of Atomizing Jets Reitz, R. D;Bracco F. V.
- ILASS America 92 pp.59-63 Mechanism of Air-Assisted Liquid Atomization Liu, A. B;Reitz, R. D
- ILASS America 91 pp.42-81 Atomization Mechanism of Fuel Injection Huh, K. Y.;Gosman, A. D.
- Journal of Mechanical Engineering Science pp.210-219 Discharge Coeffcient for Incompressible Non-Cavitating Flow Through Long Orfice Kicharowicz, A.;Duggins, R. K.;Markaland E
- Ph.D. Thesis, Department of Mechanical and Aerospace Engineering Atomizing Round Jets Wu, K-J
- International Journal of Turbo and Jet Engine v.6 pp.271-291 Influencyof Gas-Injector Geometry on Atomization Performance of Aerated-liquid Nozzles Wang, X. F.;Chin, J. S.;Lefebvre, A. H
- SAE paper 740715 Fuel Droplet Size Distribution in Diesel Combustion Chanber Hiroyasu, H;Kadota, T.
- Computers & Fluids v.3 no.1 pp.15-36 Investigations of Laminar Flow in a Pipe With Sudden Contraction of Cross Sectional Area Curst, F.;Loy, T.
- Atomization and Spray v.5 no.1 pp.107-121 Near Nozzle Characteristics of a Transient Fuel Spray Koo, J. Y.;Martin, J. K.
- Numerical Heat Transfer and Fluid Flow Patankar, S. V.
- Computers & Fluids v.15 no.3 pp.251-273 A Calculation Procedure for Tubulent Flow in Comprex Geometries Demirdzic, I;Gosman, A. D;Issa, R. I.;Peric, M.
- Proceedings Institution of Mechanical Engineerings v.173 no.25 pp.655-660 Fow Pattern in Diesel Nozzle Spray Holes Bergwerk, W
- SAE paper 790494 On the Dependence of Spray Angle and Other Spray Parameters on Nozzle Design and Operating Conditions Reitz, R. D;Bracco, F. B
- PH.D. Thesis A Finite Volume Method for the Prediction of Three-Dimensional Fluid in Complex Ducts Peric, M.