An experimental study is performed to measure the terminal settling velocities of spherical particles in surfactant based shear thinning viscoelastic (VES) fluids. The measurements are made for particles settling in unbounded fluids and fluids between parallel walls. VES fluids over a wide range of rheological properties are prepared and rheologically characterized. The rheological characteriza...

Manifestation of rheological properties of bituminous binders over a wide a range of temperature in real life pavements can be attributed to various factors viz. crude source, processing methods, oxidative aging and chemical composition. A clear understanding of the fundamental chemical and rheological properties of bitumen and their interrelationship is important to address issues related to b...

Rheological characterization of high-solid sludge is a fundamental requirement for optimizing the mixing and transport of high-solid sludge during anaerobic digestion in waste water treatment systems. We investigate the time evolution of physico chemical properties and rheological characteristics of high-solid digested sludge with total solids (TS) 15–20 wt.% during anaerobic digestion. A serie...

The success of a wide range of commercial products and industrial processes depends on meeting specific flow requirements. Industrial applied rheology attempts to relate fundamental properties to fitness-for-use of fluids of commerce. Architectural and industrial coatings, molded plastics, adhesives, personal care products and cosmetics, inks, cement, drilling muds, ceramic slips, solder pastes...

Nowadays a wide variety of different accessories used in combination with rotational rheomters are available. Such techniques range from rheo-optical methods to applying external pressures and electrical or magnetical fields. In addition systems transforming the rotational movement of the rheometer allow investigations on extensional rheology or tribology with a rheometer. INTRODUCTION Rheologi...

1 School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW, Australia 2 School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, NSW, Australia 3 ARC Centre of Excellence for Electromaterials Science, Innovation Campus, University of Wollongong, Wollongong, NSW, Australia 4 School of Mechanical and Ele...

The aim of this study was to use a detailed rheological characterization to gain new insights into the gelation behavior of natural waxes. To make a comprehensive case, six natural waxes (differing in the relative proportion of chemical components: hydrocarbons, fatty alcohols, fatty acids, and wax esters) were selected as organogelators to gel high-oleic sunflower oil. Flow and dynamic rheolog...