Juniper Publishers Journal Of Civil Engineering

Juniper Publishers- Journal of Civil Engineering Abstract In the last decade, theoretical and experimental research on nanofluids has been reported by many researchers because of their higher thermal conductivity as compared to base or common fluids. Although there are many controversial and inconsistent reports, the lack of understanding of the formation and mechanism of nanofluids further limits their applications. This article describes the application of nanofluids in the construction field. Keywords: Nanofluids; CNTs; Building construction; Cement industry Introduction The fast paced technology development during the last decades of 20th century led to the appearance of several new materials suitable for the use in the building construction, such as phase change materials, nanomaterials and nanofluids which revealed many important and useful properties reported in the past decades [ 1 ]. The unique set of features of these mat

Juniper Publishers: A Way to Enhance Hail Prevention Technique and to ... : Agricultural Research & Technology: Open Access Journal   Abstract In this article a new method and a station of anti-hail p...

Juniper Publishers- Journal of Civil Engineering Abstract In the last decade, theoretical and experimental research on nanofluids has been reported by many researchers because of their higher thermal conductivity as compared to base or common fluids. Although there are many controversial and inconsistent reports, the lack of understanding of the formation and mechanism of nanofluids further limits their applications. This article describes the application of nanofluids in the construction field. Keywords: Nanofluids; CNTs; Building construction; Cement industry Introduction The fast paced technology development during the last decades of 20th century led to the appearance of several new materials suitable for the use in the building construction, such as phase change materials, nanomaterials and nanofluids which revealed many important and useful properties reported in the past decades [ 1 ]. The unique set of features of thes

Juniper Publishers- Journal of Civil Engineering   Abstract For various models of three-dimensional fluid which describe the flows in the Atmosphere and the Ocean, we find a relation between the essential spectrum of normal vibrations of internal waves and non-uniqueness of the limit amplitude of vibrations induced by external mass forces. Keywords: Water Resources, Applied Ocean Research, Physical and Computational Models,Structural Dynamics, Internal Waves, Spectral Theory, Essential Spectrum, Limit Amplitude, Uniqueness of Mathematical Solutions. Introduction Let us consider a system of partial differential equations in x = ( x 1 , x 2 , x 3 )ϵ r 3 of the following type: Here, is a velocity field of the fluid, p ( x, t ) is the scalar field of the dynamic pressure, represents mass forces acting on the fluid, and A is a matrix operator which defines the specific model. For example, in the model of rotational motion of th

Juniper Publishers- Journal of Civil Engineering Abstract A discrete element model (DEM) particle flow code (PFC) based 2D numerical simulation was used to model the behaviour of crushed cohesion-less rock fragments passing into a rope shovel dipper (bucket); mimicking previous field verified physical 1/32 nd scale tests. While the previous physical tests showed the development of a previously unknown void space within the dipper that perpetuated low dipper fill factors; the model reported in this paper was developed to show the impact of particle size characteristics on the ability of a given shovel dipper geometry to fill, within a set arc dig trajectory. In comparison to the previous scale physical tests, a good correlation to the DEM indicated that the numerical method was able to mimic the dipper fill process; specifically particle flow mode sand development of flow layers and particle obstructions, akin to sanding in a low velocity hydro-transport pipe