Manuscript Number : EBHAE020

Flow Prediction in Scramjet Engine Inlet

Authors(4) :-T Anand, R Selva Kumaran, R Vijayan, M shalini

The primary purpose of an inlet for any air-breathing propulsive system is to capture and compress air for processing by the remaining portions of the engine. In a conventional jet engine, the inlet works in combination with a mechanical compressor to provide the proper compression for the entire driving force. For vehicles flying at supersonic (1.5 < M < 5) or hypersonic (M > 5) speeds, suitable compression can be attained by the inlet without a mechanical compressor. Because the inlet channel provides the airflow and compression ratios of the scramjet engine, an efficiently designed inlet is critical for the successful operation of the engine. Scramjet inlets are a key component in its function, and their design has stantial in several aspects. A computational study for scramjet inlet with different ramp angles and ramp lengths are analyzed to compress the air by sharp leading edge, fixing the whole cowl up or down. However, the performance of the inlet tends to degrade as Mach number range increases an air intake consisting of different ramps producing oblique shocks followed by a cowl shock. An imposing shock may force the boundary layer to separate from the wall,resulting in total pressure regaining losses and a reduction of the inlet efiiciency. Design an inlety to meet the necessities such as Low stagnation pressure loss, High static pressure and temperature increases and deceleration of flow to the desired value of mach number. A two-dimensional analysis was carried out in this project. ANSYS is used to create the Geometry. ICEM is used to create the mesh & FLUENT is used for analyzing the flow.

Authors and Affiliations

T Anand
Assistant Professor, Department of Aeronautical Engineering, Adhiyamaan College of Engineering, Hosur, Tamil Nadu, India
R Selva Kumaran
Student, Department of Aeronautical Engineering, Adhiyamaan College of Engineering, Hosur, Tamil Nadu, India
R Vijayan
Student, Department of Aeronautical Engineering, Adhiyamaan College of Engineering, Hosur, Tamil Nadu, India
M shalini
Student, Department of Aeronautical Engineering, Adhiyamaan College of Engineering, Hosur, Tamil Nadu, India

Scramjet Inlet, Ramp angle, Ramp length, Cowl, Oblique shock, ANSYS

  1. D. Nirmalkumar, S.Murugesan, Design and Computational Analysis of Scramjet Inlet, International Journal of Engineering Research and General Science, Vol 3, Issue 2, March-April, 2015
  2. Dilip A Shah and nirmalkumar D, Research Article Computational Analysis of Scramjet Inlet, International Journal of Recent Scientific Research Vol. 6, Issue, 4, Pp.3391-3403, April, 2015
  3. Derek J. Dalle, Sean M. Torrez, and James F. Driscoll, Performance Analysis of Variable-Geometry Scramjet Inlets Using a Low-Order Model,47th Aiaa/Asme/Sae/Asee Joint Propulsion Conference & Exhibit 31 July - 03 August 2011, San Diego, California
  4. Reinartz Aachen Institute for Advanced Study in Computational Engineering Science, Performance Analysis Of A 3d Scramjet Intake, Preprint: Aices-2008-13/14/September/2008
  5. Flock, Johannes C. Riehmer, Ali G¨Ulhan, Axisymmetric Scramjet Engine Design and Performance Analysis International Space Planes and Hypersonic Systems and Technologies Conferences 6-9 July 2015, Glasgow, Scotland 20th Aiaa International Space Planes and Hypersonic Systems and Technologies Conference
  6. Sadatake Tomioka, Tetsuo Hiraiwa, Tomoyuki Khisdha, Hiroki Yamasaki Evolution of Vitiation Effects in Scramjet Engines,Trans Isass Tech Japan Vol 7, No Ists Pp. Pa 47 Pa 52 2009 
  7. Jang, R. Pe?cnik and P. Moin, A Numerical Study Of the Unstart Event in an Inlet/Isolator Model,Center For Turbulence Research Annual Research Briefs 2010
  8. Sarah Frauholz1, Birgit U. Reinartz2, Siegfried Müller3, and Marek Behr Rwth Transition Prediction for Scramjet Intakes Using the Γ-Reθt Model Coupled To Two Turbulence Models, Aachen University, Germany
  9. Ramesh Kolluru and Vijay Gopal, Comparative Numerical Studies of Scramjet Inlet Performance Using K-Ε Turbulence Model with Adaptive Grids
  10. Jeevan Rao?, Bhargav?, Krupakar Pasala? and Srinivasa Ra, Computational Study of Viscous Flow in a Scramjet, Accepted 10 January 2014, Available Online 01 February 2014, Special Issue-2, (February 2014)
  11. Yufeng Yao and Daniel Rincon, School of Aerospace and Aircraft Engineering, Shock Induced Separating Flows In Scramjet Intakes. Kingston University Roehampton Vale, Friars Avenue London, UK
  12. Matthew Flynn Rohweder, A Numerical Investigation of Flow field Modification in High-Speed Air breathing Inlets Using Energy Deposition, Missouri University of science and technology
  13. M. Krause, B. Reinartz, J. Ballmann,Numerical Computations for Designing a Scramjet Intake, Department of Mechanics, RWTH, Aachen University
  14. Smart, M. K, Optimization of Two-Dimensional Scramjet Inlets, Journal of aircraft, Vol.36, NO. 2,1999, pp 430-433
  15. Kristen Nicole Roberts, Analysis and Design of a Hypersonic Scramjet Engine with a Starting Mach number Of 4.00, The University of Texas at Arlington August 2008

Publication Details

Published in : Volume 5 | Issue 5 | March-April 2020
Date of Publication : 2020-03-05
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 64-72
Manuscript Number : EBHAE020
Publisher : Technoscience Academy

Print ISSN : 2395-6011, Online ISSN : 2395-602X

Cite This Article :

T Anand, R Selva Kumaran, R Vijayan, M shalini, " Flow Prediction in Scramjet Engine Inlet", International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 5, Issue 5, pp.64-72, March-April-2020.
Journal URL : https://ijsrst.com/EBHAE020
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