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Online since: August 2011
Authors: Siwadol Kanyakam, Sujin Bureerat
Having obtained the final solutions, the actual functions are found using computational fluid dynamic (CFD) analysis.
PBIL: Generate a population X from Pij PBIL: Initialization k=0, (B) Probability matrix Pij(k), archive A = {} PBIL: Find non-dominated solutions from A È X and update the archive A PBIL: Update the probability matrix Pij No LHS: Sampling real functions size of Nd evaluated by CFD KRG: Fit the Gaussian model Stop?
no yes PBIL: Generate a population Y from Qij PBIL: Find non-dominated solutions from Y and update the archive B PBIL: Update the probability matrix Qij k=k+1 PBIL: Initialization t=0 Probability matrix Qij(t), archive B = {} KGR function prediction CFD function evaluation t=t+1 Fig. 3 Flowchart for hybrid PBIL and KRG Design Problem Pin-Fin Heat Sink Model.
Materials and air properties and the assumptions of heat-flow in this simulation are detailed in [5].
Fig. 4 Physical model of pin-fin heat sink In the design process, an automated procedure was achieved by interfacing the CFD software into MATLAB.
Online since: August 2013
Authors: Fu Yuan Li, Xi Zhao Du, Yu Wen Zhang
The results provide a reference for experiment in water tunnel and the simulation model.
As a result, the numerical simulation of cavity flow develops quickly [4, 5, 6].
Simulation Result.
Tab.1 shows the data of the simulation.
Multi-phase CFD Analysis of Typical Cavitator for Supercavitating Underwater Vehicle [J].
Online since: June 2012
Authors: Yong Yang, Cai Jin Wu, Zheng Fei Ma
Ying Zhang [5] simulated the granular flow field of the straight cut-in single and double-inlet cyclones by software CFD, and concluded that the separation efficiency of the double-inlet cyclone was higher than that of the single-inlet cyclone.
Simulation Model Size and Mesh Division of Cyclone Model in Simulation.
Numerical Simulation Method.
Slack, CFD Analysis of a cyclone, Fluent Europe Ltd.
A Thematic Network for Quality and Trust in the Industrial Application of CFD.
Online since: June 2023
Authors: Hesham A. Helal, Rania F. Ismail
Energy Simulation as an Architectural Design Tool The ability to produce energy efficient design proposals within the architectural field is becoming an essential requirement more than an option. [14] As part of the development design strategy, an extensive simulation analysis is carried to determine the most energy efficiency solution suitable for commercial building in specific location.
DesignBuilder is the chosen software in this study because DesignBuilder provides accurate energy, comfort, cost, and daylighting performance data to help inform and guide your design decisions in addition to the ability to simulate design CFD (Computational Fluid Dynamic) to simulate building natural ventilation flow [15].
This wind flow distribution is guaranteeing the thermal comfort for the users of the inner plaza Figure 6: CFD study for the proposed design by DesignBuilder, Source: Authors Also, phase 3 and phase 4 from the project design are had energy simulation to ensure, the energy design reduction and the design is compatible with LEED energy category as a step toward being LEED certified.
Results The design is simulated by environmental simulation software DesignBuilder to ensure that the design is integrated with the environment, energy efficient and sustainable.
Teaching energy simulation in the architectural design studio: An experimental approach.
Online since: August 2013
Authors: Sheng Jun Shi, Wei Shan Chen, Dan Xia, Zhi Jun Wu
In order to better simulate the movement environment of biological Raja eglanteria, k-epsilon turbulent model is used during the computational fluid dynamics (CFD) simulation.
Fig. 4 Sketch of computational domain Newton’s laws of motion are used in the CFD, resulting into forward motion of bionic batoid model.
The consistency between Figure 5 and Figure 6 show that our simulation results are believable. 3.3 Propulsive Efficiency.
Compared with the natural batoids, the simulation results of bionic batoid can be verified to a certain extent.
H: Parameter Analysis of Batoid Fin Motions Using Fluid-Structure Interaction Based Simulation and Design of Experiments.
Online since: November 2012
Authors: Bao Dong Guo, Pei Qing Liu, Qiu Lin Qu, Yue Li Cui
The simulation results were compared to experimental data for validation.
The Fluent 6.3 commercial CFD code was used to complete all calculations. 1 Model Setup and Numerical Methods 1.1 Model Geometry and Grid Topology.
In this simulation V0=0.99m/s and the initial height h=0.05m above water surface.
The simulation results of the 0 degree transducer was shown in Fig.5.
Anttonen: Transonic Store Separation using Unstructured cfd with Dynamic Meshing.
Online since: October 2011
Authors: Bi Ming Shi, Chao Min Mu, Ying Wang
Numerical Simulation on Fire Smoke Flow with Jet Fans in an Underground Garage Ying WANG, Biming SHI, Chaomin MU College of Energy and Safety, Anhui University of Science & Technology, Huainan Anhui 232001, China Email: 673705604@163.com Keywords: Fire smoke, Jet fans, Underground garage, Numerical simulation Abstract With the aim of evaluating capabilities of a ventilation system with jet fans to control fire smoke in an underground garage, we carried out a set of FDS simulation.
In order to ensure the fire safety in underground garage, a set of FDS simulations based on the large eddy simulation (LES), was carried out to present the details of fire smoke, soot density, as well as temperature in this paper.
This means we can believe the simulation results in the following discussions.
The comparison of heat release rate between experimental and numerical simulation results has shown an overall good agreement, revealing the accuracy and usefulness of FDS simulation.
CFD study of smoke control inside enclosed car parking.
Online since: January 2012
Authors: Yuan Fu Cao, Ti En Zhang, Xiao Liu
Because the velocity at this point is unknown, the CFD simulation of jacket is carried out to determine the velocity of point 5 in different conditions.
Simulation of Cylinder Head Jacket.
The CFD simulation is carried out.
CFD Homogeneous Mixing Flow Modelling to Simulate Subcooled Nucleate Boiling Flow [J].
Online since: July 2014
Authors: Santosh Kumar Mishra, Ramashankar Paswan, Kumar Sujit, N. Kumar, Ajit Kumar, Jayanta Das
LITERATURE REVIEW Three dimensional CFD analysis and experimental test of flow force acting on the spool of solenoid operated directional control valve was explained by[1].It has been observed that Solenoid direct operated spool type directional control valves are often used in various machines and equipment.
To confirm the obtained results of CFD calculations a device for measuring forces acting along the axis of the spool was prepared.
Modelling, simulation and control of high speed nonlinear hydraulic servo system was explained by [8].
Lisowski 2013“Three dimensional CFD analysis and experimental test of flow force acting on the spool of solenoid operated directional control valve” Energy Conversion and Management 70 (2013) 220–229
[8] Dechrit Maneetham 2010“Modelling, simulation and control of high speed nonlinear hydraulic servo system” World Journal of Modelling and Simulation Vol. 6 (2010) No. 1, pp. 27 – 39.
Online since: May 2018
Authors: Jerneja Kolšek
We will seek the answer using a computerised fire simulation.
Computer Simulation of the Fire Computer simulation of a fire means: (i) simulation of the progressive ignition of combustible objects located within the fire compartment and the release of heat and gaseous products during their combustion; and (ii) simulation of the transport of released heat and smoke across the compartment and the rest of the building.
The basis for the latter analyses (i.e. the analysis of the transport of heat and gases) are transport equations, also better known as numerical models of fluid dynamics (CFD models - "Computational Fluid Dynamics") and thermal radiation.
That model was prepared in FDS [2] which was further used for fire-related CFD and heat radiation analyses.
Fig. 2 Simple scheme of the models engaged in an advanced fire simulation.
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