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Online since: May 2014
Authors: Graham Doig, K. Schomberg, J. Olsen
Computational simulation of an altitude adaptive nozzle concept
K.
Therefore, to further the understanding of flow behaviour within the ED nozzle, a thorough analysis utilising CFD is required.
Numerical model The geometry utilised in all simulations was consistent with that used in a prior experiment [12].
The pressure-based coupled solver and second order spatial discretisation schemes were utilised for all simulations.
The analysis confirmed the integral role of turbulence within the ED nozzle flowfield and justified the continued use of CFD over conventional inviscid analytic numerical methods.
Therefore, to further the understanding of flow behaviour within the ED nozzle, a thorough analysis utilising CFD is required.
Numerical model The geometry utilised in all simulations was consistent with that used in a prior experiment [12].
The pressure-based coupled solver and second order spatial discretisation schemes were utilised for all simulations.
The analysis confirmed the integral role of turbulence within the ED nozzle flowfield and justified the continued use of CFD over conventional inviscid analytic numerical methods.
Online since: October 2014
Authors: Muhammad Adib Jamil, Azmahani Sadikin, Norasikin Mat Isa
Experimental and numerical simulation of heat transfer and flow regimes for vertical flow across horizontal tubes are presented for mass flow rate in the range 0.03 – 0.17 kg/s and heat fluxes in the range 1.07–1.35 kW/m2.
These data and the predictions from numerical simulation were compared with the data available in the literature.
The vector velocity, heat transfer and temperature distribution were studied using a CFD.
Experimental work and CFD Modeling Shell and tube heat exchanger consists of a shell with a bundle of tubes inside it.
The simulation was run until the residual of the pressure and velocities were less than 0.00001.
These data and the predictions from numerical simulation were compared with the data available in the literature.
The vector velocity, heat transfer and temperature distribution were studied using a CFD.
Experimental work and CFD Modeling Shell and tube heat exchanger consists of a shell with a bundle of tubes inside it.
The simulation was run until the residual of the pressure and velocities were less than 0.00001.
Online since: October 2011
Authors: Qiu Ya Zheng, San Yang Liu
Summary of data from the First AIAA CFD Drag Prediction Workshop.
Hemsch, Statistical Analysis of CFD Solutions from the Drag Prediction Workshop.
Summary of data from the second AIAA CFD drag prediction workshop.
Study of CFD variation on transport configurations from the second drag prediction workshop[R].
Numerical simulation of the flowfields around the DLR-F4 wing-body configurations.
Hemsch, Statistical Analysis of CFD Solutions from the Drag Prediction Workshop.
Summary of data from the second AIAA CFD drag prediction workshop.
Study of CFD variation on transport configurations from the second drag prediction workshop[R].
Numerical simulation of the flowfields around the DLR-F4 wing-body configurations.
Online since: September 2013
Authors: Zhong Hai Zhou, Hai Yan Bie, Juan Xu, Zong Rui Hao
At present, the gas turbulent flow model includes k-ɛ model, RNG model, Reynolds stress model, and the large eddy simulation.
While the large eddy simulation can directly simulate the large eddy of anisotropic turbulence.
CFD modeling and multi-objective optimization of cyclone geometry using desirability function, Artificial neural networks and genetic algorithms, Applied Mathematical Modelling.
CFD modeling of dense medium cyclone, International Journal of Coal Preparation and Utilization.
Flow simulation in industrial cyclone separator, Advances in Engineering Software.
While the large eddy simulation can directly simulate the large eddy of anisotropic turbulence.
CFD modeling and multi-objective optimization of cyclone geometry using desirability function, Artificial neural networks and genetic algorithms, Applied Mathematical Modelling.
CFD modeling of dense medium cyclone, International Journal of Coal Preparation and Utilization.
Flow simulation in industrial cyclone separator, Advances in Engineering Software.
Online since: November 2012
Authors: Xin Hua Wang, Zhi Jie Li, Shu Wen Sun, Gang Zheng
The cavitation flow characteristics in jet pipe amplifier with different nozzles were simulated using commercial computational fluid dynamics (CFD) software.
The simulation results are shown in Fig. 2.
Fig. 3 shows the simulation results.
The simulation results are shown in Fig. 4.
The simulation results are shown in Fig. 7.
The simulation results are shown in Fig. 2.
Fig. 3 shows the simulation results.
The simulation results are shown in Fig. 4.
The simulation results are shown in Fig. 7.
Online since: April 2016
Authors: Lígia Rafaely Barbosa Sarmento, Daniela Passos Simões de Almeida Tavares, Severino Rodrigues de Farias Neto, Antonio Gilson Barbosa de Lima, Enivaldo Santos Barbosa
The application of CFD to complex problems has a big importance in providing engineering solutions no mattering the size of project.
The advance in the power of computer processing allows that complex equations associated with CFD can be solved in lower timescales.
Simulations were done in two stages.
The maximum simulation time was 20 seconds with a time step of 0,01s.
The simulation occurred for around 2 hours and 20 minutes for the Case 1 and around 22 hours for Case 2.
The advance in the power of computer processing allows that complex equations associated with CFD can be solved in lower timescales.
Simulations were done in two stages.
The maximum simulation time was 20 seconds with a time step of 0,01s.
The simulation occurred for around 2 hours and 20 minutes for the Case 1 and around 22 hours for Case 2.
Online since: April 2016
Authors: Severino Rodrigues de Farias Neto, E.S. Barbosa, B.E. Leite, Daniela Passos Simões de Almeida Tavares, Lígia Rafaely Barbosa Sarmento, Cidronia Janiclebia de O. Buriti, Antonio Gilson Barbosa de Lima
All simulations were carried out using the Ansys CFX ® commercial code.
The CFD numerical package was used for the present calculations.
For the simulation, time was optimized, and the time steps were modified during the simulation.
Hydrodynamcs of Oil-Water with Leakage by CFD.
Sarmento, Multiphase Flow on Curved Conections Coupled to Pipe With Leaks: Modeling and Simulation.
The CFD numerical package was used for the present calculations.
For the simulation, time was optimized, and the time steps were modified during the simulation.
Hydrodynamcs of Oil-Water with Leakage by CFD.
Sarmento, Multiphase Flow on Curved Conections Coupled to Pipe With Leaks: Modeling and Simulation.
Online since: June 2014
Authors: Rui Li, Chang Hong Tang
The Investigation of Turbulence Models Based on Numerical Simulation
Rui LI1, a * and Chang-hong TANG 2,b
1, Northwestern polytechnical university, Xi’an 710072, China
2, Northwestern polytechnical university, Xi’an 710072, China
1, savastopol@163.com
*Corresponding author
Keywords: The Reynolds stress, Turbulence, Numerical simulation, The boundary layer.
Introduction With CFD applications in practical engineering design gradually,deepening, the flow field on geometry body becomes more complex.
The main methods on numerical simulation of turbulent flow are the Direct Numerical Simulation, large eddy simulation (LES) and Reynolds Reynolds-averaging equations simulation .The Reynolds equation method is a basic method for the engineering computation of turbulent flow.
One of the future direction of development of turbulence simulation, which is aimed to perfect compressibility correction.
Turbulence modeling for CFD ,California DCW industies inc ,1993
Introduction With CFD applications in practical engineering design gradually,deepening, the flow field on geometry body becomes more complex.
The main methods on numerical simulation of turbulent flow are the Direct Numerical Simulation, large eddy simulation (LES) and Reynolds Reynolds-averaging equations simulation .The Reynolds equation method is a basic method for the engineering computation of turbulent flow.
One of the future direction of development of turbulence simulation, which is aimed to perfect compressibility correction.
Turbulence modeling for CFD ,California DCW industies inc ,1993
Online since: July 2023
Authors: Paulo Roberto Wander, Lucas Ló Guiot, Flavia Schwarz Franceschini Zinani
alguiot@edu.unisinos.br, bfzinani@unisinos.br, cprwander@unisinos.br
Keywords: Covid-19, Contagion, Ventilation, Exposure, CFD.
Computational Fluid Dynamics (CFD) is used for this purpose.
Computational fluid dynamics (CFD) is the solution, by numerical methods, of the differential equations of transport phenomena.
Figure 4 - 2D and 3D system design for computer simulation (Author, 2022).
Biswas, A novel CFD analysis to minimize the spread of COVID-19 virus in hospital isolation room, Chaos.
Computational Fluid Dynamics (CFD) is used for this purpose.
Computational fluid dynamics (CFD) is the solution, by numerical methods, of the differential equations of transport phenomena.
Figure 4 - 2D and 3D system design for computer simulation (Author, 2022).
Biswas, A novel CFD analysis to minimize the spread of COVID-19 virus in hospital isolation room, Chaos.
Online since: May 2014
Authors: Gholamreza Keshavarzi, Tracie J. Barber, Ryan S. Pawell
Computational Fluid Dynamics (CFD) compared to experiments, has the advantage of detailed information analysis across the domain of interest.
In this paper, we show how image analysis may be applied to CFD data to better understand the results.
However, this has only been shown by comparing CFD with experimental results for a certain range of bubbles with moderate deformations [1, 2].
Lou, Numerical simulation of bubble rising in viscous liquid.
Krishna, R. and J.M. van Baten, Rise characteristics of gas bubbles in a 2D rectangular column: VOF simulations vs experiments.
In this paper, we show how image analysis may be applied to CFD data to better understand the results.
However, this has only been shown by comparing CFD with experimental results for a certain range of bubbles with moderate deformations [1, 2].
Lou, Numerical simulation of bubble rising in viscous liquid.
Krishna, R. and J.M. van Baten, Rise characteristics of gas bubbles in a 2D rectangular column: VOF simulations vs experiments.