Search for dissertations about: "Non-newtonian effect"

Showing result 1 - 5 of 17 swedish dissertations containing the words Non-newtonian effect.

2. 1. Capillarity and wetting of non-Newtonian droplets

   Author : Yuli Wang; Gustav Amberg; Daniel Bonn; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dynamic wetting; contact line; diffusive interface; viscoelasticity; non-Newtonian; microfluidics; droplet impact; droplet spreading; Engineering Mechanics; Teknisk mekanik;

   Abstract : Capillarity and dynamic wetting of non-Newtonian fluids are important in many natural and industrial processes, examples cover from a daily phenomenon as splashing of a cup of yogurt to advanced technologies such as additive manufacturing. The applicable non-Newtonian fluids are usually viscoelastic compounds of polymers and solvents. READ MORE

4. 2. Numerical simulation of non-Newtonian fluids flow over surfaces

   Author : Kazem Bazesefidpar; Outi Tammisola; Luca Brandt; Shahriar Afkhami; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dynamic wetting; viscoelasticity; non-Newtonian fluids; contact- angle hysteresis; droplet spreading; self-propelled jumping; dynamisk vätning; viskoelasticitet; icke-Newtonska vätskor; kontaktlinjehysteres; dropparnas spridning på ytor; spontan hoppning av droppar från ytor; Teknisk mekanik; Engineering Mechanics;

   Abstract : Wetting of surfaces by droplets of non-Newtonian fluids is important for various industrial and natural processes such as coating and cleaning of surfaces and inkjet printing, to name a few. Viscoelastic fluids are compounds of a very small amount of polymers and solvent. READ MORE

5. 3. Numerical study of particle suspensions in Newtonian and non-Newtonian fluids

   Author : Dhiya Alghalibi; Luca Brandt; Metin Muradoglu; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; inertial suspensions; rheology; non-Newtonian fluids; visco-elastic; sedimentation; deformable particle; hyper-elastic.; tröghetsbehäftad suspension; reologi; icke-Newtonska fluider; vis- koelastik; sedimentering; deformerbara partiklar; hyperelastik; Engineering Mechanics; Teknisk mekanik;

   Abstract : Solid or deformable particles suspended in a viscous fluid are of scientific and technological interest in a broad range of applications. Pyroclastic flows from volcanoes, sedimentation flows in river bed, food industries, oil-well drilling, as well as blood flow in the human body and the motion of suspended micro-organisms in water (like plankton) are among the possible examples. READ MORE

6. 4. Computational studies of flow in Couette Rheometer and particle interaction in non-Newtonian fluids

   Author : Naser Hamedi; Strömningsteknik; []
   Keywords : Non-Newtonian fluids; Correction factor; Fluid properties; Couette Rheometer; Particle interaction; Sedimentation; Computational Fluid dynamics; Plug flow; Herschel Bulkley; Power-law fluid; Immeresed boundary method;

   Abstract : This work aims to study the flow of non-Newtonian fluids and has two main goals. First, the power-law and Herschel Bulkley fluids are studied in a Couette rheometer. Second, the static and dynamic interaction of dual particles in power-law fluid are investigated. READ MORE

7. 5. Experimental studies of large particles in Newtonian and non-Newtonian fluids

   Author : Sagar Zade; Luca Brandt; Fredrik Lundell; Ellen Longmire; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; turbulence; finite-size; particle-laden flows; duct flow; pipe flow; viscoelastic fluid; viscoplastic fluid; Engineering Mechanics; Teknisk mekanik;

   Abstract : In everyday human life, laminar flow is arguably an exception whereas turbulent flow is the norm. Yet, the former has been much better understood, naturally since laminar flow renders itself to treatment in a relatively easier fashion compared to turbulence with its chaotic dynamics across multiple scales in space and time. READ MORE