Experimental results obtained during rapid shearing of several dry, coarse, granular materials in an annular shear cell are described. The main purpose the tests was to obtain information that could be used guide theoretical development constitutive equations suitable for flow cohesionless bulk solids at low stress levels. shear-cell apparatus consists two concentric disk assemblies mounted on a fixed shaft. Granular material contained trough bottom and capped by lipped ring top disk. can...

This paper describes an investigation of the aerodynamic performance a Hyperloop pod equipped with axial compressor using CFD simulation. The is expected to reduce drag if operational speed exceeds Kantrowitz Limit (KL). To evaluate effectiveness compressor, two types have been designed: those and without compressor. A validation study was undertaken for supersonic flow around cylindrical body in wind tunnel. Several combinations Mach number blockage ratios were examined. modeled fan...

The “Wild Animal Movement Detection and Alert System” repr esents an innovative approach to wildlife monitoring, leveraging advancements in artificial intelligence embedded systems track analyze animal activity their natural habitats. This project integrates the ESP32CAM, a low cost yet highly efficie nt micro controller with image capturing capabilities, YOLO (You Only Look Once) object detection algorithm, which i s renowned for its real time, high accuracy classification loc alization of...

Abstract The paper describes a numerical model of floating ice interaction with moored structure. is based on solving the equations for conservation mass and momentum together constitutive cover, as well motion cover considered to follow cohesive Mohr-Coulomb yield criterion tension cut-off. structure treated rigid body supported by linear spring that can move in horizontal plane. Vertical movements are neglected. A depth averaged version used, whereby stresses velocities over depth....

The risks of ship besetting under ice pressure are examined. Hindcasts dynamics examine the conditions that led to two vessels in Gulf St. Lawrence on 9 March 2005. analysis examines distributions potentially significant variables such as (mean normal stress), ridge thickness and strain rates. A criterion for assessing risk was then proposed. preliminary parametric study also done order illustrate a method predicting different environmental forcing conditions.

Abstract The interaction of managed ice coverswith a wide structure is examined. Numerical simulations are used to simulatethe modes cover deformation and forces on the structure. Theobjective present work validate performance numericalmodel using historical data recorded during operations Kulluk in theBeaufort Sea 1980s early 1990s. This paper last part ofan investigation aimed at developing an approach for modeling iceinteraction with moored structures. Previous papers examined role ofthe...

In this study, a Hyperloop pod travelling beyond the Kantrowitz limit in tunnel of finite length was studied using analytical methods and computational fluid dynamics simulations. Impact on shock reflected off end wall observed, resulting an instantaneous 35% increase drag across range blockage ratios. After impact, further reflections shocks resulted continuous to peak 230%. The temperature at estimated rise 26.5 K due absolute pressure upstream pod. Multiple tunnel-end geometries were...

Ice pressure ridges in the southern Beaufort Sea near Tuktoyaktuk were surveyed April 1986. Sail cross-section profiles and ice-block dimensions of extreme heights measured at several locations along outer edge landfast ice. Statistical distributions sail as well correlations between ice block are obtained. Geographical distribution longitudinal changes individual examined. Key words: ridges, ice, sea ridge sails, statistics, Sea.

As an ice sheet impinges on the surface of a cone, flexural (or bending) failure is likely to take place. That mode causes substantially lower forces than case compressive failure, which would place if encounter vertical structure. Some designs further adopt inverted cones, as downward-breaking may produce forces. The present study employs numerical model dynamics in order predict patterns, clearing around structure, and Performance validated against tests done Esso Resources Canada Ltd....