Design Exploration of a Scramjet Inlet upto Three External Ramp

Kunal Garg; G. Vidya; M. M. Patil; V. Ashok

doi:10.1007/978-981-19-3938-9_3

Design Exploration of a Scramjet Inlet upto Three External Ramp

Kunal Garg, G. Vidya, M. M. Patil, V. Ashok

Indian Space Research Organization

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Scramjet vehicle operates in a hostile environment and works within a narrow flight spectrum which inevitably manifests stringent design requirements which can only be addressed by system optimization. It generates thrust by its integral propulsive system comprising shock compression by ramps/corners/cowls, supersonic heat addition followed by supersonic expansion. In the current study, mixed compression inlet up to three external ramps and one internal shock reflection is optimized for total pressure recovery (TPR)-pitching moment coefficient (C_M ), employing the weighted sum method using MATLAB fmincon, for vehicle performance and stability. The flow field is solved using oblique shock relations which reduces computation effort without much affecting the flow physical aspects. Effect of isolator beginning Mach no and freestream Mach no on the ramp angles are studied. The developed methodology can be utilized to better understand the trade-off among design parameters and its effect on the overall design. Further, this approach comes handy engineering tool for the preliminary design of the SCramjet inlet.

Original language	English
Title of host publication	Advances in Multidisciplinary Analysis and Optimization - Proceedings of the 4th National Conference on Multidisciplinary Analysis and Optimization
Editors	P. Pradeep Pratapa, G. Saravana Kumar, Palaniappan Ramu, R.K. Amit
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	29-34
Number of pages	6
ISBN (Print)	9789811939372
DOIs	https://doi.org/10.1007/978-981-19-3938-9_3
Publication status	Published - 2023
Externally published	Yes
Event	4th National Conference on Multidisciplinary Design, Analysis and Optimization, NCMDAO 2021 - Virtual, Online Duration: 7 Oct 2021 → 9 Oct 2021

Publication series

Name	Lecture Notes in Mechanical Engineering
ISSN (Print)	2195-4356
ISSN (Electronic)	2195-4364

Conference

Conference	4th National Conference on Multidisciplinary Design, Analysis and Optimization, NCMDAO 2021
City	Virtual, Online
Period	7/10/21 → 9/10/21

ASJC Scopus subject areas

Automotive Engineering
Aerospace Engineering
Mechanical Engineering
Fluid Flow and Transfer Processes

Access to Document

10.1007/978-981-19-3938-9_3

Cite this

Garg, K., Vidya, G., Patil, M. M., & Ashok, V. (2023). Design Exploration of a Scramjet Inlet upto Three External Ramp. In P. Pradeep Pratapa, G. Saravana Kumar, P. Ramu, & R. K. Amit (Eds.), Advances in Multidisciplinary Analysis and Optimization - Proceedings of the 4th National Conference on Multidisciplinary Analysis and Optimization (pp. 29-34). (Lecture Notes in Mechanical Engineering). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-19-3938-9_3

Garg, Kunal ; Vidya, G. ; Patil, M. M. et al. / Design Exploration of a Scramjet Inlet upto Three External Ramp. Advances in Multidisciplinary Analysis and Optimization - Proceedings of the 4th National Conference on Multidisciplinary Analysis and Optimization. editor / P. Pradeep Pratapa ; G. Saravana Kumar ; Palaniappan Ramu ; R.K. Amit. Springer Science and Business Media Deutschland GmbH, 2023. pp. 29-34 (Lecture Notes in Mechanical Engineering).

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title = "Design Exploration of a Scramjet Inlet upto Three External Ramp",

abstract = "Scramjet vehicle operates in a hostile environment and works within a narrow flight spectrum which inevitably manifests stringent design requirements which can only be addressed by system optimization. It generates thrust by its integral propulsive system comprising shock compression by ramps/corners/cowls, supersonic heat addition followed by supersonic expansion. In the current study, mixed compression inlet up to three external ramps and one internal shock reflection is optimized for total pressure recovery (TPR)-pitching moment coefficient (CM ), employing the weighted sum method using MATLAB fmincon, for vehicle performance and stability. The flow field is solved using oblique shock relations which reduces computation effort without much affecting the flow physical aspects. Effect of isolator beginning Mach no and freestream Mach no on the ramp angles are studied. The developed methodology can be utilized to better understand the trade-off among design parameters and its effect on the overall design. Further, this approach comes handy engineering tool for the preliminary design of the SCramjet inlet.",

author = "Kunal Garg and G. Vidya and Patil, {M. M.} and V. Ashok",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.; 4th National Conference on Multidisciplinary Design, Analysis and Optimization, NCMDAO 2021 ; Conference date: 07-10-2021 Through 09-10-2021",

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Garg, K, Vidya, G, Patil, MM & Ashok, V 2023, Design Exploration of a Scramjet Inlet upto Three External Ramp. in P Pradeep Pratapa, G Saravana Kumar, P Ramu & RK Amit (eds), Advances in Multidisciplinary Analysis and Optimization - Proceedings of the 4th National Conference on Multidisciplinary Analysis and Optimization. Lecture Notes in Mechanical Engineering, Springer Science and Business Media Deutschland GmbH, pp. 29-34, 4th National Conference on Multidisciplinary Design, Analysis and Optimization, NCMDAO 2021, Virtual, Online, 7/10/21. https://doi.org/10.1007/978-981-19-3938-9_3

Design Exploration of a Scramjet Inlet upto Three External Ramp. / Garg, Kunal; Vidya, G.; Patil, M. M. et al.
Advances in Multidisciplinary Analysis and Optimization - Proceedings of the 4th National Conference on Multidisciplinary Analysis and Optimization. ed. / P. Pradeep Pratapa; G. Saravana Kumar; Palaniappan Ramu; R.K. Amit. Springer Science and Business Media Deutschland GmbH, 2023. p. 29-34 (Lecture Notes in Mechanical Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Patil, M. M.

AU - Ashok, V.

PY - 2023

Y1 - 2023

N2 - Scramjet vehicle operates in a hostile environment and works within a narrow flight spectrum which inevitably manifests stringent design requirements which can only be addressed by system optimization. It generates thrust by its integral propulsive system comprising shock compression by ramps/corners/cowls, supersonic heat addition followed by supersonic expansion. In the current study, mixed compression inlet up to three external ramps and one internal shock reflection is optimized for total pressure recovery (TPR)-pitching moment coefficient (CM ), employing the weighted sum method using MATLAB fmincon, for vehicle performance and stability. The flow field is solved using oblique shock relations which reduces computation effort without much affecting the flow physical aspects. Effect of isolator beginning Mach no and freestream Mach no on the ramp angles are studied. The developed methodology can be utilized to better understand the trade-off among design parameters and its effect on the overall design. Further, this approach comes handy engineering tool for the preliminary design of the SCramjet inlet.

AB - Scramjet vehicle operates in a hostile environment and works within a narrow flight spectrum which inevitably manifests stringent design requirements which can only be addressed by system optimization. It generates thrust by its integral propulsive system comprising shock compression by ramps/corners/cowls, supersonic heat addition followed by supersonic expansion. In the current study, mixed compression inlet up to three external ramps and one internal shock reflection is optimized for total pressure recovery (TPR)-pitching moment coefficient (CM ), employing the weighted sum method using MATLAB fmincon, for vehicle performance and stability. The flow field is solved using oblique shock relations which reduces computation effort without much affecting the flow physical aspects. Effect of isolator beginning Mach no and freestream Mach no on the ramp angles are studied. The developed methodology can be utilized to better understand the trade-off among design parameters and its effect on the overall design. Further, this approach comes handy engineering tool for the preliminary design of the SCramjet inlet.

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Y2 - 7 October 2021 through 9 October 2021

ER -

Garg K, Vidya G, Patil MM, Ashok V. Design Exploration of a Scramjet Inlet upto Three External Ramp. In Pradeep Pratapa P, Saravana Kumar G, Ramu P, Amit RK, editors, Advances in Multidisciplinary Analysis and Optimization - Proceedings of the 4th National Conference on Multidisciplinary Analysis and Optimization. Springer Science and Business Media Deutschland GmbH. 2023. p. 29-34. (Lecture Notes in Mechanical Engineering). doi: 10.1007/978-981-19-3938-9_3

Design Exploration of a Scramjet Inlet upto Three External Ramp

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