Research on the Fluid Analysis of the Plastic Profile Cooling Method

2012 ◽  
Vol 531 ◽  
pp. 244-247
Author(s):  
Xiang Shan Huang ◽  
Li Dan Chen

By fluid analysis for the finite element models of "S"-shaped and straight waterways with ANSYS, through thermal analysis for the finite element models of the function blocks with and without holes cooling after flow analysis, by comparison of the temperature field, function blocks with hole deformation is narrowed, the product quality can thus be improved.

2018 ◽  
Vol 38 ◽  
pp. 04026
Author(s):  
Chuan Kai Jiang ◽  
Lei Nie ◽  
Wen Jia ◽  
Yu Ning Zhong

In order to uncover the external manifestations of TSV internal defects, the finite element models of typical internal defects, which were filling missing, axial cavity and end cavity, were established. The thermal analysis was carried out using thermoelectric coupling method. The temperature distribution of TSV with and without defects were obtained. And the temperature variation profiles on the defined paths of TSV layer were also analyzed. The analysis indicated that all the defective TSV showed distinct temperature distribution with the defect-free TSV. Among three typical defects, TSV with filling missing showed the most obvious difference on the temperature distribution and path variation. TSV with end cavity has relatively weak affect and the slightest defect was TSV with axial cavity. Therefore, it could be seen that the external temperature difference caused by the internal defects of TSV could provide effective information for the identification and detection in TSV with internal defects.


2014 ◽  
Vol 614 ◽  
pp. 124-127
Author(s):  
Meng Kai Lin ◽  
Hai Lian Li

Taking the concrete pouring for a passenger station’s pile cap as the research background, the paper establishes a model of pile cap’s hydration heat, by using the finite element software MIDAS. The paper also studies the main parameters and the temperature field theory which affect the hydration heat. It indicates that the pipe cooling method can significantly reduce the temperature difference between the inside and the outside when pouring massive concretes, and it is an effective way to prevent the generation of cracks.


2012 ◽  
Vol 503-504 ◽  
pp. 11-14
Author(s):  
Yan Jun Zhao ◽  
Xin Jun Li ◽  
Yong Hai Wu ◽  
Cheng Xu

Thermal is a important factor that affect weapon firing accuracy and security in the process of weapon fire, so thermal analysis of weapon has important meaning . Aim at researched Weapon, the finite element model of the gun body was built, the temperature field of the gun body was calculated by FEM. The effects of temperature of the gun body on firer and aiming mechanism were also studied. Current research work will be helpful the weapon design


2012 ◽  
Vol 164 ◽  
pp. 214-217
Author(s):  
Xiang Shan Huang ◽  
Li Dan Chen

According to the assumption of the plastic profile cooling analysis, Prandtl number Pr and Reynolds number Re can be derived from the fluid parameters. The paper judge and analyze the movement of flow state, further study the formula of heat transfer coefficient α, thermal analysis and boundary conditions in Reynolds number Re. The experimental results show mathematical model, which provides a theoretical basis for the cooling and forming of function blocks, it has certain guiding significance.


2014 ◽  
Vol 18 (suppl.1) ◽  
pp. 113-120 ◽  
Author(s):  
Vukic Lazic ◽  
Ivana Ivanovic ◽  
Aleksandar Sedmak ◽  
Rebeka Rudolf ◽  
Mirjana Lazic ◽  
...  

The three-dimensional transient nonlinear thermal analysis of the hard facing process is performed by using the finite element method. The simulations were executed on the open source Salome platform using the open source finite element solver Code_Aster. The Gaussian double ellipsoid was selected in order to enable greater possibilities for the calculation of the moving heat source. The numerical results were compared with available experimental results.


10.14311/550 ◽  
2004 ◽  
Vol 44 (2) ◽  
Author(s):  
J. Murín ◽  
M. Kropáč ◽  
R. Fric

This paper contains a calculation of the thermal field caused by electro-heat in lighting devices. After specifying the heat sources, a thermal analysis is make using the finite element method and the equivalent thermal scheme method. The calculated results have been verified experimentally.


2020 ◽  
pp. 28-35
Author(s):  
Mehmet Sait Cengiz ◽  
Seda Yetkin

In this study, a simulation study was conducted for the loss of efficiency caused by the heat emitted by the LED chips. The temperature change of LED luminaire was analysed for three different scenarios using finite element method. Due to the increase in the internal temperature of the luminaire and due to the air effect inside the LED luminaires, failure of the LEDs has been tried to be prevented. For this purpose, a passive cooling method was proposed in the simulation environment. So, in high power LED luminaires, the high heat emitted by the LED chips is reduced to low heat by an air flow method. In this way, efficiency in LED outputs has been achieved.


2012 ◽  
Vol 625 ◽  
pp. 167-170
Author(s):  
Jian Ning Xu ◽  
Wei Lv ◽  
Wen Jie Lv ◽  
Duan Yin Zhu

Lubricating oil transfer pump is important functional subsystem in two-screw pump system, and all moving parts works very fast, it is easy to generate heat, that not only affect the lubricating oil transfer pump’s temperature field, but also make transmission failure by the thermal deformation which caused by high temperature of parts in contact. This paper established a finite element thermal analysis model and boundary conditions of lubricating oil transfer pump, and calculated the temperature field and thermal deformation for it during the process of oil extraction in different coefficient of convective heat transfer, analysis the change rule of the steady state temperature field and thermal deformation, proved that lubricating oil transfer pump can normal work in certain conditions.


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