Work

Numerical study on hydrogen mixing for different scramjet Engine combustion chamber configurations

Year: 2024

Type: conference-paper

Abstract: This study investigates fuel mixing within a scramjet engine combustion chamber using computational fluid dynamics (CFD) simulations. Employing the Reynolds-Averaged Navier-Stokes (RANS) equations, the Shear Stress Transport (SST) turbulence model, and the energy equation, we model hydrogen fuel mixing in the scramjet's cold flow regime. Simulations, conducted using OpenFOAM software and the 'reactingFoam' solver, focus on evaluating the mixing efficiency and total pressure loss across different engine geometries, including cavity, strut-cavity, and double-cavity-strut configurations. Results show that shockwave interactions significantly influence the flow dynamics, with the strut-cavity configuration yielding the highest fuel diffusion and mixing efficiency. The study validates the model against experimental data from the German Aerospace Center (DLR), highlighting the impact of engine design on scramjet performance.

Source: Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)

DOI: 10.5109/7323356

Authors: Elsayed Abdelhameed, Koki Okamoto, Yasumasa Watanabe

Institutions: Kafrelsheikh University, Toyota Technological Institute

Language: English

Topic: Computational Fluid Dynamics and Aerodynamics

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Funder: Japan Society for the Promotion of Science