Evidence map›Paper›PMID 39774139›Full record

ArticleScientific reports2025

Usage of double injector for efficient mixing of the fuel behind the ramp injector at supersonic combustion chamber.

Ihab Omar, Mohamed R El-Sharkawy, Rifaqat Ali, Pradeep Kumar Singh, Husam Rajab, Mohsen Ahmed, Naim Ben Ali, Wajdi Rajhi, Lotfi Ben Said, S Arman Abodollahi

Abstract read
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In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Ihab OmarAir Conditioning Engineering Department, Faculty of Engineering, Warith Al-Anbiyaa University, Karbala, 56001, Iraq.
Mohamed R El-SharkawyEngineering of Technical Mechanical Power Department, Al-Amarah University College, Maysan, Iraq.
Rifaqat AliDepartment of Mathematics, Applied College in Mohayil Asir, King Khalid University, Abha, Saudi Arabia.
Pradeep Kumar SinghDepartment of Mechanical Engineering, Institute of Engineering and Technology, GLA University, Mathura (U.P.), India.
Husam RajabCollege of Engineering, Department of Mechanical Engineering, Najran University, King Abdulaziz Road, P.O Box 1988, Najran, Kingdom of Saudi Arabia.
Mohsen AhmedImam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Eastern Province, Kingdom of Saudi Arabia.
Naim Ben AliDepartment of Industrial Engineering, College of Engineering, University of Ha'il, Ha'il City, 81451, Saudi Arabia.
Wajdi RajhiDepartment of Mechanical Engineering, College of Engineering, University of Ha'il, Ha'il City, 81451, Saudi Arabia.
Lotfi Ben SaidDepartment of Mechanical Engineering, College of Engineering, University of Ha'il, Ha'il City, 81451, Saudi Arabia.
S Arman AbodollahiFaculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran. samirreza1@outlook.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This investigation presents extensive computational analyses of the compressible flow near ramp injector with double circular injectors at supersonic combustor of scramjet engine. Comparison of the fuel mixing and fuel jet penetration of hydrogen jet are done for two injector configurations at free stream Mach number of 2. The simulation of the supersonic flow near ramp injector is done via solving RANS equations with computational fluid dynamic technique. Effect of nozzle space on the fuel distribution and mixing mechanism has been investigated. Besides, interface of the free stream and jet behind the ramp are fully analyzed. Comparison of the circulation strength behind these two configurations indicates that increasing of the jet space led to higher circulation strength. However, the mixing efficiency of the model with low jet space is higher since the interaction of these two jet is key factor for diffusion and mixing inside the combustion chamber.

Indexed as

CFDCombustion chamberHydrogen jetStrutSupersonic flow

Identifiers

PMID39774139
PMCPMC11706939

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.