Gas Flow in Slit-Rectangular Tube in Low Vacuum Region

Investigation of fluid flow and heat transfer in tube hot metal gas forming process

In this study, hot metal gas forming process of AA6063aluminumtubeis studied with a focus on heat transfer of both fluid and solid phases numerically. An experimental study is simultaneously conducted to validate the numerical method. Some of the most important outputs of the present study, are velocity distribution of fluid inside the tube as well as the fluid in the gap between tube and matri...

Pressure Drop Measurements in Rectangular Micro - Channel Using Gas Flow

Due to the need for practical cooling technologies which could dissipate high heat fluxes, an experimental study of pressure drop in micro-channel was performed. In this work, laminar flow friction factors were determined using gas (air) as flow medium. Pressure drop vs flow rate data were used to evaluate friction factors in two parallel microchannels, namely MCP1 and MCP2 (1.0 mm deep x 0.240...

Deposition of Electron Beam Evaporant in a Low Vacuum Gas Flow Environment

The Simulation of Gas Flow in Measuring Tube

The goal of our work is focused on the microcomputer application for fluid flow measuring. The contribution describes design of the flowmeter (time of – flight sensor) with microcomputer, so describes the evaluation circuit and the metering procedure. The displacement of a temperature profile caused by the fluid flow in the sensor tube is simulated by the simulation program FEMLAB.

Investigation on Turbulent Nanofluid Flow in Helical Tube in Tube Heat Exchangers

In this study, the thermal characteristics of turbulent nanofluid flow in a helical tube in the tube heat exchanger (HTTHE) were assessed numerically through computational fluid dynamics (CFD) simulation. The findings of both the turbulent models: realizable k-epsion (k-ε) and re-normalisation group (RNG) k-epsilon were compared. The temperature distribution contours show that realizable and RN...