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Online since: May 2015
Authors: Jium Ming Lin, Cheng Hung Lin, Chia Hsien Lin
From the simulation results one can see it is a good idea to apply a non-floating type angular accelerometer with a hemispherical chamber, the sensitivity performance is 395K/(rad/sec2), while the one with rectangular chamber is 195K/(rad/sec2).
From the simulation results one can see it is a good idea to apply a non-floating type angular accelerometer with a hemispherical chamber, the sensitivity performance is 395K/(rad/sec2), while the one with rectangular chamber is 195K/(rad/sec2).
The paper is organized as follows: the first section is an introduction; the next part illustrates the steps of fabrication and package; Section 3 is simulation and discussion; the last part is a conclusion.
Simulation and Discussion In this section ESI-CFD+ software package was applied for simulation.
From the simulation results one can see it is very good to apply a non-floating type angular accelerometer applying the above new ideas, the sensitivity performance is 395K/(rad/sec2), while the one with rectangular chamber is 195K/(rad/sec2).
From the simulation results one can see it is a good idea to apply a non-floating type angular accelerometer with a hemispherical chamber, the sensitivity performance is 395K/(rad/sec2), while the one with rectangular chamber is 195K/(rad/sec2).
The paper is organized as follows: the first section is an introduction; the next part illustrates the steps of fabrication and package; Section 3 is simulation and discussion; the last part is a conclusion.
Simulation and Discussion In this section ESI-CFD+ software package was applied for simulation.
From the simulation results one can see it is very good to apply a non-floating type angular accelerometer applying the above new ideas, the sensitivity performance is 395K/(rad/sec2), while the one with rectangular chamber is 195K/(rad/sec2).
Online since: May 2014
Authors: Jean Sébastien Cagnone, Koen Hillewaert, Nicolas Poletz
This paper describes the development of a multiphysics welding simulation model based on
the discontinuous Galerkin (DG) finite-element method.
In particular, this formulation offers arbitrarly-high order of spatial accuracy on highly unstructured meshes, thus combining the precision of academic research codes with the adaptability of general purpose CFD solvers.
In this work, the DG approach is extended to the simulation of manufacturing processes involving metal fusion, such as welding.
This work represents a first step towards a high-fidelity fusion welding simulation package, with future efforts dedicated to extensive mesh-refinement studies, the implementation of a deformable free-surface, industrial applications, and in the longer run hp-adaptive simulations.
Melting of a pure metal on a vertical wall: numerical simulation.
In particular, this formulation offers arbitrarly-high order of spatial accuracy on highly unstructured meshes, thus combining the precision of academic research codes with the adaptability of general purpose CFD solvers.
In this work, the DG approach is extended to the simulation of manufacturing processes involving metal fusion, such as welding.
This work represents a first step towards a high-fidelity fusion welding simulation package, with future efforts dedicated to extensive mesh-refinement studies, the implementation of a deformable free-surface, industrial applications, and in the longer run hp-adaptive simulations.
Melting of a pure metal on a vertical wall: numerical simulation.
Online since: October 2004
Authors: Byung Young Moon, Beom Soo Kang, Chun Tae Lee
And the vehicle
dynamic characteristics of the proposed model are evaluated using quarter car simulation model.
In Fig. 7(a), the simulation result of the DSSA is presented in damping force versus stroke against the ±30 mm step input.
In Fig. 7(b), the simulation result of the DSSA is presented in damping force versus velocity against the ±30 mm step input.
The simulation results of response are compared with the ones of passive shock absorber.
Roth; A Shock Absorber Model Using CFD Analysis and Easy5, SAE International Congress and Exposition(1999), pp.1322 [4] Stefaan W.
In Fig. 7(a), the simulation result of the DSSA is presented in damping force versus stroke against the ±30 mm step input.
In Fig. 7(b), the simulation result of the DSSA is presented in damping force versus velocity against the ±30 mm step input.
The simulation results of response are compared with the ones of passive shock absorber.
Roth; A Shock Absorber Model Using CFD Analysis and Easy5, SAE International Congress and Exposition(1999), pp.1322 [4] Stefaan W.
Online since: January 2016
Authors: Miloš Kalousek, Martin Němeček
Comparative numerical simulation was also carried out.
Comparative simulation of the summer thermal stability The experimental measurements in the house at Moravany served as a basis for comparative numerical simulation within the validation procedure of computer software.
Results and evaluation of simulation The resulting values of internal air temperatures in the executed simulation, as compared with the actually measured data, appear to be satisfactory.
In the case of both studios 1.04 the difference between simulation and measurement is larger.
Opening the windows was not part of the simulation model; the simulation tool Energy Plus does not provide any simulation of air flow (CFD).
Comparative simulation of the summer thermal stability The experimental measurements in the house at Moravany served as a basis for comparative numerical simulation within the validation procedure of computer software.
Results and evaluation of simulation The resulting values of internal air temperatures in the executed simulation, as compared with the actually measured data, appear to be satisfactory.
In the case of both studios 1.04 the difference between simulation and measurement is larger.
Opening the windows was not part of the simulation model; the simulation tool Energy Plus does not provide any simulation of air flow (CFD).
Online since: May 2014
Authors: Meng Huai Wu, Andreas Ludwig, Mahmoud Ahmadein, Mehaela Stefan Kharicha, Abdella Kharicha
Simulation of solidification and convection of NH4Cl-H2O solution in a water-cooled copper mold
M.
Reasons for the quantitative deviation between the simulation and experiment are discussed.
The model is implemented in an Eulerian multiphase CFD code (ANSYS Fluent 14.5.0).
A comparison of the velocity fields between the simulation and experiment is shown in Fig.2.
The solid line in simulation represents the solidification front.
Reasons for the quantitative deviation between the simulation and experiment are discussed.
The model is implemented in an Eulerian multiphase CFD code (ANSYS Fluent 14.5.0).
A comparison of the velocity fields between the simulation and experiment is shown in Fig.2.
The solid line in simulation represents the solidification front.
Online since: July 2013
Authors: Dong Hui Zhang, Jiao Gao
Numerical simulations for hydrodynamically laminar flow was direct ran at Re between 600 and 1800.
Physical Models Fig.1 Arc belt geometric model Results and Analysis of Numeric Simulation CFD is applied for the simulation [5]-[7].Due to the disturbance of the arc belt, the flow direction and the speed change continuously.
It is found that enhanced tube can get better heat tranfer effect in the range of Reynolds number Re of simulation.
Mechanism of Heat Transfer Enhancement in the Core Flow of a Tube and Its Numerical Simulation.
Physical Models Fig.1 Arc belt geometric model Results and Analysis of Numeric Simulation CFD is applied for the simulation [5]-[7].Due to the disturbance of the arc belt, the flow direction and the speed change continuously.
It is found that enhanced tube can get better heat tranfer effect in the range of Reynolds number Re of simulation.
Mechanism of Heat Transfer Enhancement in the Core Flow of a Tube and Its Numerical Simulation.
Online since: May 2015
Authors: Nik Fazli Sapian, Ahmad Rasdan Ismail, Wan Azlina Wan Ismail, Khairul Azhar bin Mat Daud
As a result form the Computational Fluid Dynamic (CFD) simulation, shows that by maintaining a 2 m head, the cross-flow turbine power output can achieve 1700 watt at 50 L/s flow rate and 700 watt at 40 L/s for axial-flow turbine.
M. et al. (2011) Independent small reservoir 1700 watt Test-rig and CFD simulation Haidar, Ahmed et al. (2011) Headwater reservoir 2850 watt Installed at UMP H.
M. et al. (2011) Independent small reservoir 1700 watt Test-rig and CFD simulation Haidar, Ahmed et al. (2011) Headwater reservoir 2850 watt Installed at UMP H.
Online since: October 2014
Authors: Fadilah Hasim, Harijono Djojodihardjo, Surjatin Wiriadidjaja, Azmin Shakrine Mohd Rafie, Tabrej Khan, Faizal Mustapha
Figure 1: UPM - LST [1]
Figure 2: Layout of the new UPM Closed Circuit Wind Tunnel [2]
Methodology of the Wind Tunnel Design Analysis
Since the results of computational fluid dynamic calculation (CFD) would need validation, all design products in engineering sense would also require verification.
This question may be answered, for example, by carrying out the following simulation.
High-lift devices such as flaps are usually developed in wind tunnels and supplemented by extensive CFD’s works.
Table 1 shows a simulation that is made to calculate the Reynolds number of test models of the assumed LSA, where it is further assumed that the test would be conducted in two wind tunnels of different sizes, i.e. in 1´1 m2 and in 3´2 m2 at two different wind speeds, 50 m/s and 80 m/s, and on three different model types, i.e. 2-dimensional airfoil model, 3-dimensional half model and 3-dimensional full model.
This question may be answered, for example, by carrying out the following simulation.
High-lift devices such as flaps are usually developed in wind tunnels and supplemented by extensive CFD’s works.
Table 1 shows a simulation that is made to calculate the Reynolds number of test models of the assumed LSA, where it is further assumed that the test would be conducted in two wind tunnels of different sizes, i.e. in 1´1 m2 and in 3´2 m2 at two different wind speeds, 50 m/s and 80 m/s, and on three different model types, i.e. 2-dimensional airfoil model, 3-dimensional half model and 3-dimensional full model.
Online since: February 2014
Authors: Wei Dong Luo, Shu Mei Li, Hui Pu Liu
Structural parameters of the commercial vehicle used in the simulation are shown in Tabel 1.
Initial brake forces match at 60km/h Brake Torques Simulation at the Same Retarder Gears and Different Speeds.
Research on the parameters design of hydraulic retarder and simulation for vehicle auxiliary braking performance[D].
The Simulation and Analysis on Engine and Hydraulic Retarder Continual Braking Performance of the Tracked Vehicle on Long Downhill[C].
Research on Braking Performance of Vehicle Hydraulic Retarder based on CFD Numerical Simulation Method[C].
Initial brake forces match at 60km/h Brake Torques Simulation at the Same Retarder Gears and Different Speeds.
Research on the parameters design of hydraulic retarder and simulation for vehicle auxiliary braking performance[D].
The Simulation and Analysis on Engine and Hydraulic Retarder Continual Braking Performance of the Tracked Vehicle on Long Downhill[C].
Research on Braking Performance of Vehicle Hydraulic Retarder based on CFD Numerical Simulation Method[C].