ISSN 2277-5056 | © 2012 Bonfring Abstract--The workability of fresh concrete should be characterized by its rheological properties based on material science approach to overcome the inadequacies of traditional empirical tests like slump test. Generally the rheological properties of fresh concrete are described by Bingham parameters in terms of two physical quantities, namely yield stress and pl...

Abstract We consider mixed finite element approximations of viscous, plastic Bingham flow in a cylindrical pipe. A novel priori and posteriori error analysis is introduced which based on discrete mesh dependent norm for the normalized Lagrange multiplier. This allows proving stability various conforming elements. Numerical examples are presented to support theory demonstrate adaptive refinement.

Utilizing a non-Newtonian lubricant, such as Bingham plastic fluid, in hydrodynamic journal bearing affords the opportunity to actively alter operating performance of bearing. In this work, main purpose is explore behavior lubricated by using computational fluid dynamics (CFD) method considering roughness and cavitation. Here, concept an engineered partial pattern proposed create positive effec...

The rheological properties of acid hydrolyzed corn stover at high solids concentration (20-35 wt.%) were investigated using torque rheometry. These materials are yield stress fluids whose rheological properties can be well represented by the Bingham model. Yield stresses increase with increasing solids concentration and decrease with increasing hydrolysis reaction temperature, acid concentratio...

The present paper deals with fully developed one dimensional Bingham plastic flow of blood through a small artery having multiple stenoses and post-stenotic dilatation. We have determined the resistanceto flow -ratio for yield stresses 0, .02, .04 n/m, blood viscosities 0.00345, 0.004, 0.00455 Pa.s and fluxes 1, 10, 100. The resistanceto flow moves nearer to unity as yield stress increases and ...

This paper presents Bingham-NODDI, a clinically-feasible technique for estimating the anisotropic orientation dispersion of neurites. Direct quantification of neurite morphology on clinical scanners was recently realised by a diffusion MRI technique known as neurite orientation dispersion and density imaging (NODDI). However in its current form NODDI cannot estimate anisotropic orientation disp...

Nano-TiO2 (NT) and nano-SiO2 (NS) were separately added in the cement paste to investigate the rheological property of fresh mixtures and mechanical strength in hardened state. The effects of different dosages and types of nano-particles on the properties of cement paste were studied. The results indicated that the rheological behavior of the fresh cement paste coincides with the Modified Bingh...

An attempt has been made to investigate the wall shear stress, resistance parameter and flow rate across mild stenosis situated symmetrically on steady blood flow through blood vessels with uniform or non-uniform cross-section by assuming the blood to be Non-Newtonian, incompressible and homogeneous fluid. An analytic solution for Power law Fluid, Bingham Plastic fluid, Casson Fluid has been ob...