Submit

Login Login

Register Register

Home / Journals / FDMP / Online First / doi:10.32604/fdmp.2024.049368
Journal Menu
Special Issues
Table of Content

All issues

Online First

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

Open Access

ARTICLE

Base Pressure Control with Semi-Circular Ribs at Critical Mach Number

Ambareen Khan1, Sher Afghan Khan2, Mohammed Nishat Akhtar1,*, Abdul Aabid3,*, Muneer Baig3
1 School of Aerospace Engineering, Universiti Sains Malaysia, Penang, 11600, Malaysia
2 Department of Mechanical and Aerospace Engineering, Faculty of Engineering, International Islamic University Malaysia, Kuala Lumpur, 59000, Malaysia
3 Department of Engineering Management, College of Engineering, Prince Sultan University, P.O. Box 66833, Riyadh, 11586, Saudi Arabia
* Corresponding Author: Mohammed Nishat Akhtar. Email: email; Abdul Aabid. Email: email
(This article belongs to the Special Issue: Computational Fluid Dynamics: Two- and Three-dimensional fluid flow analysis over a body using commercial software)

Fluid Dynamics & Materials Processing https://doi.org/10.32604/fdmp.2024.049368

Received 04 January 2024; Accepted 21 May 2024; Published online 26 June 2024

Abstract

When better fuel-air mixing in the combustion chamber or a reduction in base drag are required in vehicles, rockets, and aeroplanes, the base pressure control is activated. Controlling the base pressure and drag is necessary in both scenarios. In this work, semi-circular ribs with varying diameters (2, 4, and 6 mm) positioned at six distinct positions (0.5D, 1D, 1.5D, 2D, 3D, and 4D) inside a square duct with a side of 15 mm are proposed as an efficient way to apply the passive control technique. In-depth research is done on optimising rib size for various rib sites. According to this study, the base pressure rises as rib height increases. Furthermore, the optimal location for the semi-circular ribs with a diameter of 2 mm is at 0.5D. The 1D location appears to be optimal for the 4 mm size as well. For the 6 mm size, however, the 4D position fills this function.

Graphical Abstract

Base Pressure Control with Semi-Circular Ribs at Critical Mach Number

Keywords

Base pressure; nozzle pressure ratio; base drag; sonic Mach number; passive control

  • 111

    View

  • 19

    Download

  • 0

    Like

Related articles
Copyright© 2024 Tech Science Press
© 1997-2024 TSP (Henderson, USA) unless otherwise stated

Share Link