Validation of a CFD Spray Model Based on Spray Nozzle Characteristics

2017-01-0822

03/28/2017

Features
Event
WCX™ 17: SAE World Congress Experience
Authors Abstract
Content
The purpose of this work is to determine essential spray parameters for a specific nozzle to be integrated in computational fluid dynamics (CFD) simulations of selective catalytic reduction systems (SCR) based on the injection of urea water solution (UWS). As Dinex does not develop nozzles, but rather integrate nozzles from a variety of manufacturers, the spray data made available is of an inhomogeneous quality. This paper presents the results of a simple, partial validation and calibration of a CFD simulation performed with the commercial CFD code AVL FIRE 2014.2 using the Lagrangian discrete droplet method. The validation is based on a novel and low cost experimental setup, where the experimental method utilizes high-speed imaging to provide spray cone angle, axial spray penetration length and spray plume droplet density. A description of the post-processing of experimental data is also provided, including a method to automatically evaluate spray cone angle using the Hough-transform.
Meta TagsDetails
DOI
https://doi.org/10.4271/2017-01-0822
Pages
7
Citation
Bebe, J., and Andersen, K., "Validation of a CFD Spray Model Based on Spray Nozzle Characteristics," SAE Technical Paper 2017-01-0822, 2017, https://doi.org/10.4271/2017-01-0822.
Additional Details
Publisher
Published
Mar 28, 2017
Product Code
2017-01-0822
Content Type
Technical Paper
Language
English