FLOW FIELD ANALYSIS OF A MULTI CYLINDER S.I. ENGINE AIR INTAKE SYSTEM USING COMPUTATIONAL FLUID DYNAMICS

2004 ◽  
Author(s):  
V Ganesan ◽  
J. Suresh Kumar ◽  
V. Balasubramanian
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Flow Field ◽  
Field Analysis ◽  
Intake System ◽  
Air Intake ◽  
Flow Field Analysis

scholarly journals Failure Mechanism and Optimization of Throttle Valve Based on Computational Fluid Dynamics

2021 ◽  
Vol 39 (3) ◽  
pp. 906-912
Author(s):  
Ting Yang ◽  
Yi Hong ◽  
Aijun Wang ◽  
Xiaofeng Ran ◽  
Xiaojun Fan ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Flow Field ◽  
Flow Velocity ◽  
Erosion Resistance ◽  
Fluid Pressure ◽  
Maximum Velocity ◽  
Field Analysis ◽  
Well Control ◽  
Throttle Valve

Throttle valve is an important device in well control manifold. During field use, the seat and plug of the valve often fail of erosion, posing a serious security risk to well control. Erosion resistance device is a tool to counter the problem. Using the three-dimensional (3D) flow field analysis software of computational fluid dynamics (CFD), this paper numerically simulates the flow field of erosion resistance device. The results show that, under the given boundary conditions, the mean velocity of the water flow does not change much as it passes through the inlet and outlet of erosion resistance device. The flow velocity changes very slightly, as the fluid pressure difference varies from 0.29MPa to 0.3MPa. The maximum flow velocity (16.36m/s) appears on the outlet wall of the device, beneath the alloy head. The alloy head, which is made of hard alloy material, is not greatly affected by the maximum velocity. Thus, the erosion resistance device will not be severely eroded. This means the erosion resistance device can work normally under actual conditions.

Flow Field Analysis of Self-Energizing Oil Screen with Dynamic Filtration Rollers Based on Gear Train

2013 ◽  
Vol 716 ◽  
pp. 663-667
Author(s):  
Shao Jie Xin ◽  
Qing Ling Li
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Kinetic Energy ◽  
Pressure Field ◽  
Gear Train ◽  
Field Analysis ◽  
Field Distributions ◽  
Dynamic Filtration ◽  
Flow Field Analysis ◽  
Pump Inlet

A new structure of oil screen named self-energizing oil screen with dynamic filtration rollers based on gear train was put forward. It uses the pump inlet fluid kinetic energy which is produced by pump working stroke to drive the impeller to rotate. The driving moment is transmitted to the rollers by means of gear train. When the rollers rotate, sands are prevented and oil is filtered. Computational model of the screen was established by GAMBIT based on the computational fluid dynamics. The velocity filed and pressure field distributions were attained and the driving moment of the screen was computed by FLUENT solver. The results validate that the new designed self-energying oil screens structure is reasonable, it can filter the oil effectively when the pump works.

scholarly journals Numerical Simulation on Flow Field and Design Optimization of a Generator Unit Based on Computational Fluid Dynamics Analysis

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Yingying Xu ◽  
Libin Tan ◽  
Yuejin Yuan ◽  
Man Zhang
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Flow Field ◽  
Design Optimization ◽  
Field Analysis ◽  
Dynamics Analysis ◽  
Computational Fluid Dynamics Analysis ◽  
Generator Unit ◽  
Cooling Air ◽  
Conventional Type

Achieving an optimal cooling of the generator unit is indispensable for high working performance. In this work, computational fluid dynamics analysis on the flow field of the conventional type and silent type of the S688CCS series generator unit is conducted, and design optimization of the generator unit with poor cooling is studied based on flow field analysis results. Flow field simulation results indicate that the total cooling air quantity of the silent type generator unit is lower than that of the conventional type generator unit, and the cooling air quantity of the radiator is also lower than that of the conventional type generator unit, which is not conductive for the cooling of the silent type generator unit. The flow field optimization is achieved by adopting the single variable control method to improve the structure of the fan cover, silent components for silence, adjacent structure, and air inlet grille. The corresponding structure optimization scheme is put forward. After optimization, the air quantity for the cooling radiator of the silent type generator unit is 44.33% higher than that of its original structure, and the total cooling air quantity is higher than that of the conventional type generator unit. The research results in this work can provide a theoretical basis for the design of the cooling air flow path of generator units for achieving an optimal cooling performance.

scholarly journals Moving Object Detection by 3D Flow Field Analysis

2021 ◽  
Vol 22 (4) ◽  
pp. 1950-1963
Author(s):  
Cansen Jiang ◽  
Danda Pani Paudel ◽  
David Fofi ◽  
Yohan Fougerolle ◽  
Cedric Demonceaux
Keyword(s):  
Flow Field ◽  
Object Detection ◽  
Moving Object Detection ◽  
Moving Object ◽  
Field Analysis ◽  
3D Flow ◽  
Flow Field Analysis
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