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| 1 | Characteristics of developing scour-holes at a sand-embedded cylinder显示文摘Characteristics of developing scour-holes at a sand-embedded 0.2 m diameter circular cylinder are presented. Non-intrusive, high-resolution topographic measurements of developing scour-holes were made with an experimental installation using a laser distance sensor (LDS) and precision step-motors. A clear-water experiment was conducted with bed shear stress equal to 95% of the critical bed shear stress for the initiation of sediment motion at the undisturbed plane sand bed with a d50 of 0.26 mm. During the running experiment of 21 hours duration, measurements were taken by the LDS in different azimuthal half-planes with θ = 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165 and 180o in order to study the spatio-temporal variation of geometric properties in developing scour-holes. After 21 hours, the equilibrium condition was approached, with a scour rate less than d50 per hour. Measurement of maximum scour depth in different azimuthal half-planes at different points in time during the experiment show that scour started at the cylinder side and surrounded the cylinder after about 20% of experiment time. Slopes of developing scour-holes presented three regions with different inclinations, which were attributed to vortex action. Both maximum scour depth and maximum scour radius at different azimuthal half-planes are well correlated with the maximum scour depth at plane with θ = 0o. When providing maximum scour depth at the cylinder front, the presented correlations are useful for simple calculation of scour-hole topography. This work provides an experimental database for advanced numerical simulation for loose sediment hydraulics. | Oscar LINK Florian PFLEGER Ulrich ZANKE | 2008 | International Journal of Sediment Research2008，23，3： | 12 |
| 2 | Modeling and simulation of the dynamic flow behavior in a bubble column显示文摘 | Pfleger D Beeker S | 2001 | Chemical Engineering Science2001，56，4： | 1 |
| 3 | Burden of major musculoskeletal conditions显示文摘 | WOOLF A D PFLEGER B | 2003 | Bull World Health Organ2003，81，9： | 1 |
| 4 | Arbuscular mycorrhizal fungi respond to increasing plant diversity 显示文摘 | Burrows RL Pfleger FL 2002 | 2002 | Can J Bot2002，80，： | 1 |
| 5 | Burden of major musculoskeletal conditions显示文摘 | Woolf AD Pfleger B | | 0，，09： | 1 |
| 6 | Modelling and simulation of the dynamic flow behaviour in a bubble column显示文摘 | PFLEGER D BECKER S | 2001 | Chemical Engineering Science2001，56，4： | 1 |
| 7 | On the recognition of systematized endotheliomatosis of the cutaneous blood vessels reticuloendotheliosis显示文摘 | Pfleger L Tappeiner J | | 0，，： | 1 |
| 8 | Association of adiponectin,interleukin (IL)-1 ra,inducible protein 10,IL-6 and number of islet autoantibodies with progression patterns of type 1 diabetes the first year after diagnosis显示文摘 | Kaas A Pfleger C Hansen L | | 0，，： | 1 |
| 9 | Field response to added organic matter, arbuscular mycorrhizal fungi, and fertilizer in reclamation oftaconite iron ore tailing显示文摘 | NOYD R K PFLEGER F L NORLAND M R | 1996 | Plant and Soil1996，179，： | 1 |
| 10 | Circulating ey- tokines are associated with human islet graft function in type 1 diabetes 显示文摘 | Pfleger C Sehloot NC Brendel MD | 2011 | Clin Immunol2011，138，2： | 1 |
| 11 | Cross-resistance, relatedness and allele analysis of fluoroquinolone-resistant US clinical isolates of Streptococcus pneumoniae (1998-2000)显示文摘 | Davies OA Goldschmidt R Pfleger S | 2003 | J Antimicrob Chemother2003，52，2： | 1 |
| 12 | Efficient terahertz en-face imaging 显示文摘 | Katletz S Pfleger M Ptihringer H | 2011 | Optics Express2011，19，23： | 1 |
| 13 | Polarization sensitive terahertz imaging: Detection of birefringence and optical axis 显示文摘 | Katletz S Pfleger M Putihringer H | 2012 | Optics Express2012，20，23： | 1 |
| 14 | Long-term course of induced astigmatism after clear corneal incision in cataract surgery 显示文摘 | Pfleger T Skorpic C Menapace R | 1993 | Cataract Refract Surg1993，22，： | 1 |
| 15 | Hydrodynamic simulation of laboratory scale bubble columns fundamental studies of the Eulerian-Eulerian modeling approach显示文摘 | PFLEGER D GOMES S GILBERT N | 1999 | Chem Eng Sci1999，54，： | 1 |
| 16 | Biolumineseenee resonance energy transfer (BRET) for the real-time detection of protein-protein interactions显示文摘 | Pfleger K D Seeber R M Eidne K A | 2006 | Nat Pmtoe2006，1，1： | 1 |
| 17 | The drosophila rest ortholog, hippo, restricts growth and cell proliferation and promotes apoptosis 显示文摘 | Harvey KF Pfleger CM Hariharan 1K | 2003 | Cell2003，14，4： | 1 |
| 18 | Pro-and anti-inflammatory cytokines in latent autoimmune diabetes in adults, type 1 and type 2 diabetes patients: Action LADA 4显示文摘 | Pham MN Hawa MI Pfleger C | 2011 | Diabetologia2011，54，7： | 1 |
| 19 | Extended bioluminescence resonance energy transfer (eBRET) for monitoring prolonged protein-proteln interactions in live cells显示文摘 | Pfleger K D Dromey J R Dalrymple M B | 2006 | Cell Signal2006，18，10： | 1 |
| 20 | Modelling and simulation of the dynamic flow behaviour in a bubble column显示文摘 | Pfleger D Becker S | 2001 | Chemical Engineering Science2001，56，： | 1 |
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