CFD Analysis of Twin Jet Flow At Mach 1.74with Fluent Software

Author(s):  
K.M. Pandey ◽  
Virendra Kumar
2011 ◽  
Vol 66-68 ◽  
pp. 504-509
Author(s):  
Xian Guo Han ◽  
Peng Zi Sun ◽  
Ye Ping Zhao ◽  
Ji Peng Cao

This paper gives a model of using CFD to calculate the airflow between taker-in and its casing in the A186 carding machine for researching static pressure of the airflow with FLUENT software. The model analyzes the static pressure in the casing of taker-in under the condition of the different rotation speeds of taker-in and cylinder and two gauges in air inlet of the casing. The numerical calculation of the model shows that the rotation speed of taker-in and cylinder has an obvious influence on the static pressure of the casing, of which the effect of rotation speed of taker-in is larger than that of cylinder, and the static pressure increases gradually from air inlet to outlet between taker-in and its casing. Furthermore, the calculation results confirm that while the gauge of the air inlet diminish, the static pressure of the air inlet decreases but that of the air outlet has little change. The calculation result of the model has a good agreement with the conclusion of previous study with the experimental method.


Author(s):  
S.Elangovan, Et. al.

The main objective of this paper is to increase the heat exchange rate in the monolithic heat exchanger by changing the air passage shape and materials; here we used circular, hexagonal, oval shape for air passage and Al2O3, SiC CrCO3 ceramic materials for our research work. The heat flow rate is analyzed in CFD fluent software and model in done in CATIA software.


Author(s):  
A. F. Najafi ◽  
M. H. Saidi ◽  
M. S. Sadeghipour ◽  
M. Souhar

In this study the developing turbulent swirling pipe flow is investigated both numerically and analytically. Governing equations are derived accompanying the boundary layer assumptions. Uniform and solid body rotation (SBR) distributions are taken into account for the axial and tangential velocities at the inlet of the pipe, respectively. Beyond the boundary layers, the flow pattern is considered to be the potential flow. Making use of the fourth-order Runge-Kutta scheme, the numerical solution of the differential equations is obtained. Further more, by simplifying the governing equations for large Rossby number, the analytical solution is performed. The results of numerical and analytical swirl intensity have been compared showing reasonable agreement. As an alternative solution, a CFD analysis has been done as well, having applied FLUENT software to support the ability of our methodology.


2020 ◽  
Vol 9 (4) ◽  
pp. 57-73
Author(s):  
Hela Atia ◽  
Adrian Ilinca ◽  
Ali Snoussi ◽  
Rachid Boukchina ◽  
Ammar Ben Brahim

A CFD analysis using ANSYS Fluent software was conducted to study the effects of collector slope on solar chimney's performances. Three solar chimney configurations, named A, B, and C, which correspond, respectively, to an inclination angle of the collector roof of 0°, 2.5°, and 5°, were investigated. The results show that the thermodynamic performances of the solar chimney were improved by increasing the inclination angle of the collector roof. In fact, the power extracted from the sloped solar chimney power plants increases with increasing the inclination angle and the solar radiation intensity, while it achieves a maximum at 800 W/m2 for configuration A. The energetic and the exergetic analysis show that configure B has the best performance in terms of conventional, effective, and total efficiencies of the collector and in terms of exergy destruction ratios in both the collector and the transition section. Whereas, configuration C has the highest amount of power extracted and the best overall energetic efficiency.


2019 ◽  
Vol 24 (6) ◽  
pp. 128-133
Author(s):  
Monika Andrych-Zalewska ◽  
Łukasz Wielki ◽  
Krzysztof Ziora

The article presents CFD (Computational Fluid Dynamics) analysis of the intake system of a Ferrari 348 GTC sports car. With this system, an adequate amount of air is supplied relative to the current demand for fuel combustion. The air demand of a given engine was deter-mined, then analyzes were carried out. The article contains an analysis of the velocity distribution: total velocities, angular velocities and static pressure distribution. In addition, local velocity and flow in the filtration chamber were determined along with the flow directions and returns as well as power lines. The cycle impact on the temperature, locations of the highest speed drop, increase in turbulence, the largest pressure differences, and modulus of elasticity were determined. This information allows to assess whether there are no unwanted phenomena occurring in the system, such as flow disturbances. The Ansys Fluent software was used for analysis.


Author(s):  
Roman Kalvin ◽  
Juntakan Taweekun ◽  
Muhammad Waqas Mustafa ◽  
Saba Arif

The aim of this research is performing the Computational Fluid Dynamics (CFD) analysis of 81mm Mortar Shell (French Design). The analysis is performed using ANSYS Fluent Software on three different Mach numbers (0.72, 0.76, and 0.84) and results are compared with existing design of 81mm HE M57D A2 Mortar. The drag coefficient of new modified design is found to be less than the existing model. The range of mortar shell is increased by 271 meters because of low drag coefficient with 5.96% percent increase in range and 15.73% decrease in drag coefficient value. Parabolic type; light weighted material fuze casing applied over the existing fuze will result in increase in aerodynamics, range enhancement and drag coefficient reduction. Weight optimization by using lighter material for mortar components and increasing the muzzle velocity can also increase flight duration of the projectile and increase its range. The analysis on 81mm Mortar Shell is a part of range enhancement study to overcome the short fall in required range of mortar shells.


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