Mass interminglement and hypergolic ignition of TMEDA and WFNA droplets by off-center collision
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A large We and a small Δ favor hypergolic ignition, with the critical Δ linearly increasing with We.
“The results suggest that a large We and a small Δ favor the hypergolic ignition, with the critical Δ linearly increasing with We.”
From Droplet collision of hypergolic propellants (2024) · cites this paper as [14]
Grayscale-level analysis of shadowgraph images accurately quantifies ignition delay time with reduced uncertainty of less than 0.2 ms.
“Grayscale-level analysis 3,14 of the shadowgraph images was carried out to accurately quantify the ignition delay time (IDT) with reduced uncertainty (less than 0.2 ms), as shown in Figure 5b.”
From Droplet collision of hypergolic propellants (2024) · cites this paper as [14]
IDT increases with Δ at fixed We.
“Figure 6c further shows that IDT increases with Δ at fixed We.”
From Droplet collision of hypergolic propellants (2024) · cites this paper as [14]
For We = 60.9 and Δ = 1.6, the IDT is about 30.6 ms for B = 0.0 and 24.0 ms for B = 0.3, which correlates with enhanced mass interminglement by off-center effects.
“Based on the representative cases at We = 60.9,Δ = 1.6 for different B = 0.0 and B = 0.3, as shown in Figure 7a, the IDT is about 30.6 ms for B = 0.0 and 24.0 ms for B = 0.3, which can also be correlated with the enhanced mass interminglement by the off-center effects of droplet collision.”
From Droplet collision of hypergolic propellants (2024) · cites this paper as [14]
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Self-citation
- Authors
- Zhang, D., He, C., Zhang, P., & Tang, C.
- Affiliations
- Hong Kong Polytechnic University (HK)
- State Key Laboratory of Multiphase Flow in Power Engineering (CN)
- Corresponding author
- Zhang, Dawei
- Zhang, Peng
- Venue
- Combustion and Flame
- Publisher
- Elsevier BV
- Published
- 2018-11
- Volume
- 197
- Pages
- 276-289
- ISSN
- 0010-2180 (ISSN-L)
- OpenAlex
- W2894703904
- Cited by
- 24
- References
- 50
- Citations by year
- 2026: 4 · 2025: 5 · 2024: 5 · 2023: 3 · 2022: 4 · 2021: 2 · 2020: 1
- FWCI
- 0.55
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Combustion and Flame (publishedVersion)
- PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion, cc-by-nc-nd)
- Funders
- Hong Kong Polytechnic University (G-YBXN, 152651/16E, 152217/14E)
- National Natural Science Foundation of China (91641105, 51722603)
- Topics
- Physical Sciences › Engineering › Computational Mechanics › Fluid Dynamics and Heat Transfer
- Physical Sciences › Engineering › Mechanics of Materials › Energetic Materials and Combustion
- Physical Sciences › Engineering › Aerospace Engineering › Rocket and propulsion systems research
- Keywords
- hypergolic ignition, TMEDA, white fuming nitric acid, droplet collision, off-center collisions, impact parameter, droplet coalescence, ignition delay, droplet size ratio, volume of fluid simulation
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