| Autor: |
Paranjape, Aniruddha Deepak, Bajaj, Anhad Singh, Palanganda, Shaheen Thimmaiah, Parikh, Radha, Nayak, Raahil, Radhakrishnan, Jayakrishnan |
| Předmět: |
|
| Zdroj: |
Wind Energy Science; 2021, Vol. 6 Issue 1, p149-157, 9p |
| Abstrakt: |
The impetus towards sustainable energy production and energy access has led to considerable research and development on decentralized generators, in particular diffuser-augmented wind turbines. This paper aims to characterize the performance of diffuser-augmented wind turbines (DAWTs) using high-lift airfoils employing a three-step computational analysis. The study is based on computational fluid dynamics, and the analysis is carried out by solving the unsteady Reynolds-averaged Navier-Stokes (URANS) equations in two dimensions. The rotor blades are modeled as an actuator disk, across which a pressure drop is imposed analogous to a three-dimensional rotor. We study the change in performance of the enclosed turbine with varying diffuser cross-sectional geometry. In particular, this paper characterizes the effect of a flange on the flow augmentation provided by the diffuser. We conclude that at the end of the three-step analysis, Eppler 423 showed the maximum velocity augmentation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
