This study numerically investigates a double pipe heat exchanger with triangle and rectangle rib. The simulation is performed using ANSYS package, considering turbulent flow k-e turbulence model. working fluid water in both tube annulus the arrangement counter flow. results show that, transfer of rib are higher than that normal DPHE as Reynolds number increasing transfer, coefficient transfers ...

A T-junction is a fundamental fluid element prevalent in pipe networks of water supplies and power plants. In the present study, a double T-junction was investigated for flow instability and fluid vibration. Both axi-aligned and skewed double T-junctions are examined from viewpoint of flow instability. With single-phase flow in an open-ended double T-junction, fluid vibration is induced in both...

Cannabis is the most commonly used illicit drug in Canada, and is much more likely to be used by young people (15 to 24 years) than by adults (25+ years; Canadian Centre on Substance Abuse [CCSA], 2014). In 2013, Canadian men reported nearly double the cannabis use of Canadian women (13.9% vs. 7.4%; Statistics Canada, 2015a). Smoking is the most common way to ingest cannabis, either as a cigare...

The paper analyzes the dynamic response of an underground main pipe under action a longitudinal wave propagating in soil along pipe. article assumes that elastic is finite length, and linear viscoelastic model “pipe-soil” system interaction considered. problem solved numerically using explicit scheme difference method. A taken as traveling sine wave. presents comparative analysis results for ce...

The prompt gamma rays emission, following neutron absorptions are characteristics of material under test and its intensity is proportional to amount or thickness of the material. The method is non-contact, and can, therefore, be very useful for scale or corrosion measurement of high temperature or insulated pipes. This method can be used to identify type of scale if it is not known. Neutron fro...

Spatially regulated transcription of the pipe gene in ventral cells of the Drosophila ovary follicle cell epithelium is a key event that specifies progeny embryo dorsal-ventral (DV) polarity. pipe encodes ten putative protein isoforms, all of which exhibit similarity to vertebrate glycosaminoglycan-modifying enzymes. Expression of one of the isoforms, Pipe-ST2, in follicle cells has previously ...