UGC Approved Journal no 63975(19)

ISSN: 2349-5162 | ESTD Year : 2014
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Published in:

Volume 8 Issue 4
April-2021
eISSN: 2349-5162

UGC and ISSN approved 7.95 impact factor UGC Approved Journal no 63975

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Published Paper ID:
JETIR2104234


Registration ID:
308085

Page Number

256-263

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Title

DESIGN AND COMPUTATIONAL ANALYSIS OF CONCAVITIES EFFECT OVER DIFFERENT WING PROFILE

Abstract

The main objective of aircraft aerodynamics is to enhance the aerodynamic characteristics and maneuverability of the aircraft. The airfoil which contains concavity/dimple will have comparatively less drag than the plain airfoil. Introducing concavity on the aircraft wing will create turbulence by creating vortices which delays the boundary layer separation resulting in decrease of pressure drag and also increase in the angle of stall. The dimpled airfoil has comparatively lesser drag as compared to plain airfoil. Introducing concavity on the aircraft wing will create turbulence by creating vortices which delay the boundary layer separation resulting in decrease of pressure drag and also increase in the angle of the stall. In addition, wake reduction leads to reduction in acoustic emission. The objective is to improve the aircraft maneuverability by delaying the flow separation point at stall and thereby reducing the drag by applying the dimple effect over the aircraft wing. A computational analysis has done to know the dimple effect on three different types of aircraft wing i.e. Rectangular Wing, Tapered Wing and Delta Wing, using NACA 2412 airfoil. Dimple shapes of square inward is taken for the analysis; airfoil is examined at the inlet velocity of 250m/s and we are considering aircraft in cruise state, hence we have taken the angle of attack 4˚ at cruise for all three wings. This analytical benefits the dimple effect by increasing L/D ratio and thereby resulting the high aerodynamic efficiency, which upgrades the performance of the aircraft.

Key Words

Dimple Effect, Square Dimple, Boundary Layer Separation, Lift and Drag.

Cite This Article

"DESIGN AND COMPUTATIONAL ANALYSIS OF CONCAVITIES EFFECT OVER DIFFERENT WING PROFILE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 4, page no.256-263, April-2021, Available :http://www.jetir.org/papers/JETIR2104234.pdf

ISSN


2349-5162 | Impact Factor 7.95 Calculate by Google Scholar

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 7.95 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Cite This Article

"DESIGN AND COMPUTATIONAL ANALYSIS OF CONCAVITIES EFFECT OVER DIFFERENT WING PROFILE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 4, page no. pp256-263, April-2021, Available at : http://www.jetir.org/papers/JETIR2104234.pdf

Publication Details

Published Paper ID: JETIR2104234
Registration ID: 308085
Published In: Volume 8 | Issue 4 | Year April-2021
DOI (Digital Object Identifier):
Page No: 256-263
Country: -, -, - .
Area: Engineering
ISSN Number: 2349-5162
Publisher: IJ Publication


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