Nanofluid and Twisted Tape Inserts in a Tube, Validation
$360.00 Student Discount
- The problem numerically simulates the Al2O3-Water Nanofluid in a Tube with Twisted Tape Inserts using ANSYS Fluent software.
- We design the 3-D model with the Design Modeler software.
- We mesh the model with ANSYS Meshing software, and the element number equals 2148662.
- We define Nanofluid with two methods, including the Multiphase model and fluid properties.
- This simulation is validated with a reference article.
Description
Al2O3-Water Nanofluid in a Tube with Twisted Tape Inserts, Paper Numerical Validation, CFD Simulation Tutorial by ANSYS Fluent
This problem simulates the Al2O3-water flow inside a circular tube with twisted tape inserts by ANSYS Fluent software. The simulation is based on the reference article “Study on heat transfer and friction factor characteristics of Al2O3-water through circular tube twisted tape inserts with different thicknesses’’.
Its results are compared and validated with the results in the article. In this project, the Al2O3-water fluid will enter the computational zone with an initial temperature of 300 K and a velocity of 0.716 m/s (referring to Reynolds number=500) through a multiple-staged twisted circular tube.
The twisted tube’s outer wall is exposed to a heat flux rate of 5000 W/m2 and causing the fluid flow’s temperature to increase.
The geometry of this project is designed in ANSYS design modeler and is meshed in ANSYS meshing software. The mesh type used for this geometry is structured, and the element number is 2146882.
Al2O3-Water Methodology
Nanofluids are compounds consisting of a base fluid that is filled with fine solid particles. The dimensions of these fine particles are at the nanoscale. A multiphase model (including base fluid and solid particles) can be used to model these nanofluids, But this method has a high computational cost.
Then another method is used for this simulation. To determine the properties of nanofluids (such as density, specific heat capacity, thermal conductivity and viscosity), relations and formulas can be used, each of which includes parameters related to the properties of the base fluid and solid particles.
Therefore, a new material called nanofluid can be defined in the computational zone.
Al2O3-Water Conclusion
After simulation, the present work results are compared with results obtained by the paper. For this purpose, the diagram in Figure 10 was used, which shows the Nu number’s changes over different Re numbers. It should also be noted that we have validated the results for Re number =500.
The results show that the error rate is low, and the current simulation is performed correctly. Also, the contours of pressure and velocity are obtained. Contours show that the nanofluid pressure decreases along the path passing through the twisted tapes; Because the presence of these obstacles breaks the pressure.
On the other hand, the temperature of the nanofluid also increases. When a spiral barrier is placed in the path of the nanofluid, the nanofluid travels a longer distance and makes more contact with the outer wall under heat flux.
Call On WhatsApp
Irma Stehr –
Hello, are the relationships between fluids and nanofluids different?
And did you use validation in this project?
MR CFD Support –
This work has been used for the simulation correctly using the Study on heat transfer and friction factor characteristics of γ-Al2O3 / water through circular tube twisted tape inserts with different thicknesses. The relationships from this article have also been used.
Mr. Stephon Hackett DVM –
I was satisfied with the production and content of this training, and I think there was no weakness.
Prof. Bettie O’Kon Jr. –
Very great.