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2022-06-01

Khoshrou, Ali, Ince, Ayhan

Crack-tip stress evaluation requires special treatments in the frame of classical elasticity theory for characterizing fatigue crack growth behavior. In previous studies, modified finite element methods have been used to remedy infinite stresses predicted by the classical elasticity theory at the...

2022-06-01

Garmroodi, Mohammad Reza Daneshvar, Karimfazli, Ida

We study the evolution of chaotic mixing in an initially stratified circular vessel. The bottom and top halves of the vessel are filled with viscoplastic and Newtonian fluids. A circular stirrer in the vessel promotes the mixing. We considered three different viscosity ratios to understand the...

2022-06-01

Arce-Borkent, Alvaro R., Richards, Tait, Senthilkumaran, Vigneshvar, Beier, Nicholas F., Zhou, Le, Moore, John A., Knudsen, K. Steven, Hussein, Amina E., Lipsett, Michael G.

High-resolution imaging of deformation processes in materials under load requires controllable and stable loading conditions and the ability to vary sample orientation relative to the imaging source. A novel tensile testing apparatus has been designed, developed, and characterized for...

2022-06-01

Venkatesh, Vishaal, Sharma, Himanshu, Ghebreiyesus, Wintta, Xi, Fengfeng(Jeff), Faieghi, Reza

This paper introduces a novel approach towards an implementation of head pose estimation techniques for the application of noise control. An existing multi-stage process, which uses convolutional neural network (CNNs), for head pose estimation is modified, implemented, and validated for moving...

2022-06-01

Ibrahim, Galal M., Naterer, Greg F., Pope, Kevin

This paper presents a numerical study of ice accretion on a 2MW wind turbine with an 80 m rotor diameter using ANSYS FENSAP ICE software. The study investigates ice accumulaton with a focus on spanwise variability by analyzing four sections along a rotating blade. Air and droplet velocity...

2022-06-01

Yazdanparast, Sajad, Rezai, Pouya, Amirfazli, Alidad

We propose a simple microfluidic droplet generator for controlling the droplet size over a wide range. A planar co-flow device was developed with controllable c- phase channel width using a deformable wall structure. The design was benefited from the increased shear force due to the channel...

2022-06-01

Abediasl, Hamidreza, Hosseini, Vahid, Koch, Charles Robert, Shahbakhti, Mahdi

Remote sensing emission measurement is a method to measure real driving emissions to identify high emitter vehicles. High NOx emitter vehicles are recognized among the selected 14 vehicles of the University of Alberta fleet. By combining remote sensing and on-board diagnostics (OBD) data, an...

2022-06-01

Goudarzi, Sahar, Duan,Xili, Naterer, Greg F., Muzychka, Yuri

This paper aims to evaluate the effect of porosity and buoyancy on the natural convection of CuO-RT25 nano- enhanced phase change material (NePCM) in a differentially heated porous square cavity. Buongiorno’s two-phase model is utilized to consider the Brownian thermophoresis diffusion of...

2022-06-01

St-Georges, Lyne, Nadeau, François, Tremblay, Francis

The necessity of reducing fuel consumption and the increasing demands for lightweight vehicles have motivated the use of multi-material combinations. Dissimilar metals have been progressively introduced in different locations to optimize mechanical performance and strength-to-weight ratio. These...

2022-06-01

Ansari, Amir, Abediasl, Hamidreza, Patel, Parth Rakeshkumar, Hosseini, Vahid, Koch, Charles Robert, Shahbakhti, Mahdi

Estimation of instantaneous fuel consumption of fleet vehicles to identify the causes of high fuel consumption and determine the optimum vehicle type for different applications and driving cycles is essential for the design of an intelligent fleet management system. Developing a practical and...