INTERRELATION OF STRUCTURAL AND KINEMATIC CHARACTERISTICS DURING FREE-SURFACE GRAVITY FLOWS OF GRANULAR MATERIALS
Published In: 7TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): ANDREY N. KUDI , MAXIM A. TUEV , OLEG O IVANOV , VIKTOR N. DOLGUNIN
Abstract: The interrelationship of flow parameters during free surface gravity flow of cohesionless nonelastic particles is investigated on the basis of a granular medium state equation. The equation establishes the relationship between dilatation, normal pressure and granular temperature. The granular temperature is defined as the sum of three elementary types of kinetic energy of particles in the course of its mutual displacements: relative shear movement, chaotic fluctuation and transversal mass transfer. The investigation was carried out by means of the earlier developed experimental and analytical method presupposing the distribution analysis of particles, falling from the discharge threshold of a rough chute.The profiles of velocity and fraction of the void volume have been determined in rapid gravity flows of modeling materials at simultaneous identification of the interrelationship coefficient of the granular medium state equation.The granular materials consisting of uniform spherical pa
- Publication Date: 28-Oct-2018
- DOI: 10.15224/978-1-63248-163-4-14
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SIMULATING PRECIPITATION AND TEMPERATURE TRENDS IN PAKISTAN USING THREE GCMS UNDER RCP8.5 SCENARIO
Published In: 7TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): ISHTIAQ HASSAN
Abstract: Precipitation and temperature are the two main factors considered in studies related to climate change and impact of global warming. Such studies involve application of results of climate models. US geological survey developed a web site [1] which provides visualization and access to global and regional (downscaled) climate data. In this study, results of three GCMs i.e. bcc-csm1-1m, HadGEM2-ES and GFDL-CM3, each with RCP8.5 scenarios,have been applied to study changes in precipitation and temperature over Pakistan. The results of three models showed that temperature variation is expected to range from 1.5-2.35 oC during 2025-2049, 3.23-4.48 oC during 2050-2074, and 4.49-6.57 oC during 2071-2095.Taking the average of the three models, this change is 1.89oC, 3.82oC and 5.49oC for the simulated periods of 2025-250, 2050-2074 and 2071-2095, respectively, with reference to modelled values for the base period (1980-2004).The precipitation variation is expected to be 3.31%, 8.16% and 9.45% w
- Publication Date: 28-Oct-2018
- DOI: 10.15224/978-1-63248-163-4-15
- Views: 0
- Downloads: 0