An Unstructured hp Finite-Element Scheme for Fluid Flow and Heat Transfer in Moving Domains

2001 ◽  
Vol 174 (2) ◽  
pp. 492-509 ◽  
Author(s):  
Ali Beskok ◽  
Timothy C. Warburton
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Fluid Flow ◽  
Finite Element Scheme ◽  
Element Scheme ◽  
Flow And Heat Transfer ◽  
Moving Domains ◽  
Hp Finite Element

Numerical Simulation for Heat Transfer of Nanofluid in a Rotating Circular Groove Using a Continuous Finite Element Scheme

2014 ◽  
Vol 1081 ◽  
pp. 175-179 ◽  
Author(s):  
Yong Yue Jiang ◽  
Ping Lin ◽  
Bo Tong Li ◽  
Lin Li
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Power Law ◽  
Initial Time ◽  
The Finite Element Method ◽  
Finite Element Scheme ◽  
Element Scheme ◽  
Circular Groove ◽  
Power Law Fluids ◽  
Power Law Index

In this paper, we investigate the heat transfer of the power-law-fluids-based nanofluids in a rotating circular groove. The circular groove rotates with a constant speed and the temperature on the wall of the groove is different from the temperature inside in the initial time. The effects of thermophoresis and Brownian are considered. The thermal conductivity of the nanofluids is taken as a constant. We solve the model with the finite element method directly and discretize them using a continuous finite element scheme in space and a modified midpoint scheme in time. From the results we can find that the heat transfer enhancement of the nanofluids increases as the power law index of the base fluid decreases.

scholarly journals THERMO-HYDRAULIC FINITE ELEMENT MODELLING OF DISTRICT HEATING NETWORK BY THE UNCOUPLED APPROACH

2003 ◽  
Vol 9 (3) ◽  
pp. 153-162 ◽  
Author(s):  
Irena Gabrielaitienė ◽  
Rimantas Kačianauskas ◽  
Bengt Sunden
Keyword(s):  
Heat Transfer ◽  
Finite Element Method ◽  
Finite Element ◽  
Fluid Flow ◽  
District Heating ◽  
Multilayered Structure ◽  
The Finite Element Method ◽  
Flow And Heat Transfer ◽  
Transfer Problems ◽  
Element Method

The modelling of uncoupled fluid flow and heat transfer problems of a district heating network using the finite element method (FEM) is presented. Since the standard thermo-hydraulic pipe elements cannot be directly used for modelling insulation, the main attention was paid to discretisation of multilayered structure of pipes and surrounding by one-dimensional thermal elements. In addition, validity of the finite element method was verified numerically by solving fluid flow and heat transfer problems in district heating pipelines. Verification analysis involves standard single pipe problems and simulation of fragment of district heating in Vilnius. Pressure and temperature results obtained by finite element method are compared with those by other approaches.

scholarly journals Analysis and Calculation of the Fluid Flow and the Temperature Field by Finite Element Modeling

2018 ◽  
Vol 18 (2) ◽  
pp. 59-64 ◽  
Author(s):  
M. Dhamodaran ◽  
S. Jegadeesan ◽  
R. Praveen Kumar
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Fluid Flow ◽  
Flow Analysis ◽  
Temperature Fields ◽  
The Finite Element Method ◽  
Apparent Effect ◽  
Flow And Heat Transfer ◽  
Simulation Results ◽  
Entrance Velocity

AbstractThis paper presents a fundamental and accurate approach to study numerical analysis of fluid flow and heat transfer inside a channel. In this study, the Finite Element Method is used to analyze the channel, which is divided into small subsections. The small subsections are discretized using higher number of domain elements and the corresponding number of nodes. MATLAB codes are developed to be used in the analysis. Simulation results showed that the analyses of fluid flow and temperature are influenced significantly by the changing entrance velocity. Also, there is an apparent effect on the temperature fields due to the presence of an energy source in the middle of the domain. In this paper, the characteristics of flow analysis and heat analysis in a channel have been investigated.

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